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  • Articles  (1,657,304)
  • 1980-1984  (950,557)
  • 1965-1969  (590,740)
  • 1925-1929
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  • 1
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    Nachmessungen im Bereich der Pasterze (Glocknergruppe) im Jahre 1984 (1984)
    Zeitschrift für Gletscherkunde und Glazialgeologie
    In:  EPIC3Innsbruck, Zeitschrift für Gletscherkunde und Glazialgeologie
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 2
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    Nachmessungen im Bereich der Pasterze (Glocknergruppe) im Jahre 1983 (1983)
    Zeitschrift für Gletscherkunde und Glazialgeologie
    In:  EPIC3Innsbruck, Zeitschrift für Gletscherkunde und Glazialgeologie
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 3
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    Die Gletscher der Österreichischen Alpen 1983/84 (1984)
    Zeitschrift für Gletscherkunde und Glazialgeologie
    In:  EPIC3Innsbruck, Zeitschrift für Gletscherkunde und Glazialgeologie
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    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 4
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    Sediment dynamics on the Northwest African continental margin (1982)
    Wiley
    In:  EPIC3The Ocean Floor : Bruce Heezen commemorative volume, (A Wiley-Interscience publication), Chichester, Wiley, pp. 147-163, ISBN: 0-471-10091-9
    Details
    Publication Date: 2014-05-12
    Description: The sedimentation regime off Northwest Africa is shaped by: (1) structur~al factors. which result in generallv low relief on land. shelf widths between 40 and more than 120 km. and av-erage sfope inclinations between 10 30' and 30; (2) land climates. which contral the delivery of terrigenous particles to the margin: (3) water movements including boundary currents and upwelling; and (4) the post- Pleistocene sea level rise. This chapter combines published and new results arising from research into the sedimentation processes off Northwest Africa. and emphasizes particularly the activities of the Kiel marine geological group during the past few years. Reviews of cruise activities and results were given in Closs et al. (1969) (Meteor cruise 8. 1967. off Morocco) . Seibold (1972) (Meteor cmise 25 . 1971. off Sahara to Central Senegal). Seibold and Hinz (1976) (Meteor cmise 39,1975 . and Valdivia cruise 10. 1975, from Morocco to South Senegal), and Waiden et al. (1974) (Meteor cmise 30, 1973, off Sierra Leone). Some of these cmises were used for pre- or post-site surveys for the Deep-Sea Drilling Project, or to add undisturbed Quaternary cores to the Glomar Challenger cores (leg 41, ] 975; Lancelot, et al .• 1978); leg 47 A, Arthur er al .• 1979; Lutze et al., 1979). We have concentrated our geological investigations on a number of standard profiles from the shelf to the upper continental rise as given in Figure 1. The manuscript was finished May 1979.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 5
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    3.5 kHz journal of Polarstern Leg ARK-II/4 1984-08-09 to 1984-08-27 (1984)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
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    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 6
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    3.5 kHz journal of Polarstern Leg ANT-II/4 1983-12-29 to 1984-03-10 (1984)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
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    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 7
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    3.5 kHz journal of Polarstern Leg ARK-III/2 1985-07-03 to 1985-07-30 (1984)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
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    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 8
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    Weekly reports for R.V. Polarstern expedition ANT-II/3 (1983-11-22 - 1983-12-27, Punta Arenas - Punta Arenas), German version (1983)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
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    Publication Date: 2016-07-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Weekly Reports , notRev
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  • 9
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    Radiocarbon dates II (1983)
    Dating Laboratory, University of Helsinki
    In:  EPIC3Helsinki, Finland, Dating Laboratory, University of Helsinki
    Details
    Publication Date: 2019-09-03
    Repository Name: EPIC Alfred Wegener Institut
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  • 10
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    Laboruntersuchungen zur Primärproduktion mariner Planktondiatomeen bei suboptimalem Phosphatangebot (1984)
    In:  EPIC3
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    Publication Date: 2017-02-09
    Repository Name: EPIC Alfred Wegener Institut
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  • 11
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    Figure 13-3 of Pratt (1967) (1967)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2016-08-18
    Repository Name: EPIC Alfred Wegener Institut
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  • 12
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    Figure 1 of: Mineralogy and composition of concentric layers within a manganese nodule from the North Pacific Ocean (1981)
    Marine Geology, Elsevier
    In:  EPIC3Amsterdam, Marine Geology, Elsevier
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    Publication Date: 2016-10-04
    Repository Name: EPIC Alfred Wegener Institut
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  • 13
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    Figures of: Atlantic Continental Shelf and Slope of the United States - Physiography and Sediments of the Deep-Sea Basin (1968)
    U.S. Geological Survey
    In:  EPIC3Reston, U.S. Geological Survey
    Details
    Publication Date: 2016-08-30
    Repository Name: EPIC Alfred Wegener Institut
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  • 14
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    Descriptive Report to accompany Special Project AMC-11-67, USC&GSS Discoverer, Oct. 3-18, 1967 (1967)
    U.S. Department of Commerce
    In:  EPIC3Washington, U.S. Department of Commerce
    Details
    Publication Date: 2016-09-23
    Repository Name: EPIC Alfred Wegener Institut
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  • 15
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    The orbital theory of Pleistocene climate: support from a revised chronology of the marine d18O record (1984)
    D. Reidel Publishing Company
    In:  EPIC3Dordrecht, D. Reidel Publishing Company
    Details
    Publication Date: 2016-10-06
    Description: https://www.researchgate.net/publication/230891291_The_Orbital_Theory_of_Pleistocene_Climate_Support_frim_a_Revised_Chronology_of_the_Marine_d18O_Record
    Repository Name: EPIC Alfred Wegener Institut
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  • 16
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    Figures of: The Mineral Resources of the Sea (1965)
    Elsevier
    In:  EPIC3Amsterdam, Elsevier
    Details
    Publication Date: 2016-08-25
    Repository Name: EPIC Alfred Wegener Institut
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  • 17
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    Visual observations of manganese deposits on the Blake Plateau (1969)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-11-27
    Repository Name: EPIC Alfred Wegener Institut
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  • 18
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    Weekly reports for R.V. Polarstern expedition ANT-I/2 (1983-01-22 - 1983-03-24, Cape Town - Rio de Janeiro), German (1983)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
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    Publication Date: 2015-12-02
    Repository Name: EPIC Alfred Wegener Institut
    Type: Weekly Reports , notRev
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  • 19
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    GOS 74 Expedition, Sample Log, R/V Gosnold, (Unpublished) (1965)
    USGS
    In:  EPIC3Bremerhaven, USGS
    Details
    Publication Date: 2015-11-28
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 20
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    Cruise Report - R/V GOSNOLD #74 (1965)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2015-12-14
    Repository Name: EPIC Alfred Wegener Institut
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  • 21
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    Data for: Growth rates of manganese nodules in Oneida Lake, New York (1980)
    Earth and Planetary Science Letters
    In:  EPIC3UK, Earth and Planetary Science Letters
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    Publication Date: 2015-12-16
    Repository Name: EPIC Alfred Wegener Institut
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  • 22
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    Figures of: Ferromanganese deposits off northeast Brazil (S. Atlantic) (1982)
    Marine Geology
    In:  EPIC3Amsterdam, Marine Geology
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    Publication Date: 2016-02-04
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  • 23
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    An Introduction to Echo Sounding (1982)
    Honeywell ELAC Nautik GmbH
    In:  EPIC3Kiel, Honeywell ELAC Nautik GmbH
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    Publication Date: 2014-10-25
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  • 24
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    A microscopic and electron probe investigation of manganese nodules from the northwest Indian Ocean (figures) (1968)
    DSR
    In:  EPIC3Elsevier, DSR
    Details
    Publication Date: 2015-09-09
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 25
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    Die atlantischen Grundproben der Forschungsreise S.M.S. "Planet" 1906 (1927)
    Nieders. Geol. Verein
    In:  EPIC3Hannover, Nieders. Geol. Verein
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    Publication Date: 2017-11-25
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  • 26
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    Die Deutsche Atlantische Expedition auf dem Vermessungs- und Forschungsschiff „Meteor“ 1925–1927 (1927)
    Notgemeinschaft der deutschen Wissenschaft
    In:  EPIC3Berlin, Notgemeinschaft der deutschen Wissenschaft
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    Publication Date: 2017-11-25
    Repository Name: EPIC Alfred Wegener Institut
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  • 27
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    Bericht über die Gewinnung von Korallen-Bohrkernen für Isotopen-Untersuchungen zur klimatischen Entwicklung der letzten Jahrhunderte (1984)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
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    Publication Date: 2018-04-03
    Repository Name: EPIC Alfred Wegener Institut
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  • 28
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    Sedimentations-Geschichte der Bermuda North Lagoon im Holozän (Sedimentation history of the Bermuda North Lagoon during the Holocene) (1984)
    self-published
    In:  EPIC3self-published, 271 p.
    Details
    Publication Date: 2018-08-28
    Description: Summary Holocene sediments of the North Lagoon, Bermuda, were studied with shallow seismic reflection profiles (200 km CSP-survey, UNIBOOM-system) and vibration coring (40 sediment cores, pneumatic vibration corer, Meischner et al., 1981). Seismic Stratigraphy Four seismic sequences are distinguishable by seismic stratigraphy. All seismic sequences correspond to depositional sequences built up during high sea levels in interglacial times. The seismic sequences are separated by unconformities which are often strongly reflective and correspond to emersion planes during glacial phases. The upper sequence (sequence 4) is related to Holocene sediments. The pre-Holocene bedrock is divided into three different seismic sequences (Kuhn et al., 1981): Sequence 1: oldest Pleistocene sequence (pre-Sangamon sea-level highstands), upper boundary with levelled relief (lower boundary not discernible), composed of strongly cemented carbonate sediments, forms the bedrock below Three Hill Shoals Sequence 2: Sangamon (125 ky sea-level highstand), distinct surface morphology, forms the bedrock of a large area below Holocene sediments, Holocene reefs grew up on elevations of the sequence 2 surface, the Holocene reef rim was developed on an elevated rim of sequence 2 Sequence 3: youngest Pleistocene sequence (Sangamon, 105 and 85 ky sealevel highstands lower than recent), deposited mainly in depressions of the bedrock deeper than -15 m below recent Mean Sea Level, levelling the older relief, peat sedimentation in places The distribution of recent reef areas and lagoonal basins is strongly controlled by pre-Holocene topography and geology of the bedrock. During the Holocene approx. 1050 x 106 m3 of carbonate sediments were deposited in the North Lagoon (290 km2) and approx. 1350 x 106 m3 in the reef rim area (170 km2). Sedimentology There are no larger oscillations of the Holocene sea level identifiable in the sedimentological record. The pre-Holocene topography was gradually drowned during the Holocene sea-level rise. At first, the depositional depressions were separated and landlocked. Fresh water peat marshes, fresh water ponds, marine ponds and bays were formed. With rising sea level, the land barriers were more and more eroded, drowned and lost their influence on the back-barrier sedimentation area. Autochthonous and allochthonous peat, lime gyttja and carbonate mud are a typical transgressive back-barrier sediment sequence. After destruction of the barrier, the depositional milieu changed from restricted marine to normal marine, open lagoonal. Sea-grass sediments and nearly mud-free carbonate sand were deposited in shallow water in an exposed environment. Hydrodynamic energy decreases with increasing water depth in the lagoonal basin. A more densely growing reef rim and intralagoonal reef growth added to the protection of the deeper lagoonal floors. Fine-grained sediments were deposited in this environment. They are distributed over a large area of the North Lagoon and form the top of the transgressive lagoonal sediment sequence. Holocene reefs mainly developed on rises of the pre-Holocene surface. In the early Holocene, solid reef build-ups were able to keep up with the rapid rise of sea level. Sand pockets in the reefs were left behind and filled up mainly in the later Holocene. The percentage of fine-grained sediments, produced and resuspended in the reef rim and deposited in the near lagoonal back-reef zone, increased during the Holocene. Two models of Holocene sedimentation in a depression and on an elevation of the pre-Holocene surface illustrate the dependence of vertical facies gradation on pre-Holocene topography. Trends of the mostly polymodal grain-size distributions of the Holocene sediments are a coarsening-upward in the back-barrier and a fining-upward in the lagoonal sediment sequences. Change in the composition of the molluscan fauna in the Holocene sediments (particle size 〉 2000 µm) is an Indication for fades changes. Gastropods are abundant in the basal backbarrier sediments. Bivalves are rare and their diversity 1s low. Sea-grass sediments contain Codakia orbicularis and Astraea phoebia shells. In the sheltered lagoonal environment shell fragments 〉 2000 µm become rare, common species are Gouldia cerina, Pitar fulminata and Finella sp. (approx. 1000 µm). Fine-grained reef-rim derived sediments differ from lagoonal sediments by a higher percentage of Homotrema rubrum fragments and Alcyonaria spicules.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Thesis , notRev
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  • 29
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    JOIDES - Blake Panel Report. Cruise Report and Preliminary Core Log. M/V Caldrill I, 17 April to 17 May 1975 (1965)
    National Science Foundation
    In:  EPIC3Washington D.C., National Science Foundation
    Details
    Publication Date: 2016-10-18
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  • 30
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    Report on a shore collecting trip to the Azores (12 September-1 November 1979), including a list of collecting stations [CANCAP-Project] (1981)
    In:  Various articles (0523-7904) vol.61 (1981) p.1
    Details
    Publication Date: 2018-08-14
    Keywords: oceanography ; zoogeography ; taxonomy ; collecting stations ; faunistic assemblages ; list ; Canary Islands ; Archipelago of Cape Verde ; Archipelago of Madeira ; Archipelago of the Azores ; North Africa ; North Atlantic Ocean ; CANCAP-Project
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 31
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    New records of terricolous microlichens from southeast Greenland (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.49
    Details
    Publication Date: 2015-05-08
    Description: Twelve species of terricolous microlichens from the Angmagssalik District, Southeast Greenland, are reported: Caloplaca friesii, C. livida, Lecanora boligera, Lecidea oligotropha and Leciophysma arctophila, which are new to the lichen flora of Greenland, Rinodina conradi, which is new to the eastcoast, and Baeomyces roseus, B. rufus, Buellia geophila, B. punctata, Caloplaca tornoensis and Mycoblastus tornoensis, new to Southeast Greenland. In a discussion of the greenlandic distribution, unpublished records from the herbarium of Copenhagen (C) are incorporated. Notes on the habitats are given and the pertinent phytosociological units indicated. Some morphological and anatomical characters are commented upon briefly.
    Repository Name: National Museum of Natural History, Netherlands
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  • 32
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    Studies on the flora of the Guianas 14. New taxa and combinations in Sorocea (Moraceae) and a key to its species (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.381
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    Publication Date: 2015-05-08
    Description: The 16 recognized species of Sorocea are listed with their synonyms and distribution. Two new taxa are described: S. steinbachii C.C. Berg and S. hirtella Mildbread ssp. oligotricha Akkermans & Berg. Three new combinations are made: S. muriculata Miquel ssp. uaupensis (Baillon) C.C. Berg, S. trophoides W. Burger ssp. rhodorachis (Cuatrecasas) C.C. Berg, and S. sprucei (Baillon) Macbride ssp. saxicola (Hassler) C.C. Berg. A key to the species is presented.
    Repository Name: National Museum of Natural History, Netherlands
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  • 33
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    Bryophytes collected during a Dutch botanical East Greenland expedition to the Angmagsslalik area in 1966 (1968)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.304 (1968) nr.1 p.340
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    Publication Date: 2015-05-08
    Description: From a bryological point of view Greenland is not well known in detail. Unlike Siberia or Arctic America, it is not known through a few large collections, but through multitudes of mostly relatively small gatherings. In this arctic island that is almost 2000 miles long and extends from below 60° N.lat. to nearly 84° N.lat., travel and logistics are difficult. Consequently no over-all study of the whole island has been made, although many collections have been achieved through casual or intensive studies of small areas. Like the other contributions to the knowledge of the bryoflora of Greenland this paper will only deal with a rather limited area; the Angmagssalik district on the East coast of Greenland, ranging from 65° N.lat. to 67°20' N.lat. In 1887 Lange and Jensen published the first and until now the only comprehensive review of specimens and publications on the Musci of Greenland. In their paper the first moss collection from the Angmagssalik area was reported, made in 1884-1885 in the course of ethnographical studies by Gustav Holm (Sphagnum girgensohnii and Polytrichum juniperinum), the first European to visit this part of East Greenland.
    Repository Name: National Museum of Natural History, Netherlands
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  • 34
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    Taxonomy and pollen morphology of the Caltha leptosepala complex (1969)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.312 (1969) nr.1 p.16
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    Publication Date: 2015-05-08
    Description: Contrary to Europe, with only one Caltha species, North America has at least three species of this genus. These are the polymorphic C. palustris L., also widely distributed in Europe, the floating aquatic C. natans Pall, and the polymorphic C. leptosepala-biflora group. Two previous papers (Smit 1967, 1968) dealt with taxonomic aspects of C. palustris, that in North America were not essentially different from those of European material.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 35
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    Chromosome numbers of some Angiospermae collected in Cameroun and the Ivory Coast (1969)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.313 (1969) nr.1 p.306
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    Publication Date: 2015-05-08
    Description: The chromosome numbers of 16 species of Angiosperms, collected in Cameroun and the Ivory Coast, were determined. The numbers given for 14 species are new, in the remaining species the results of other authors could be confirmed.
    Repository Name: National Museum of Natural History, Netherlands
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  • 36
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    A Biosystematic Study of Neohattoria herzogii (Hatt.) Kamim (1981)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.509 (1981) nr.1 p.23
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    Publication Date: 2015-05-08
    Description: Neohattoria Kamim. is a monotypic genus of the Jubulaceae (= Frullaniaceae) with a single species, N. herzogii (Hatt.) Kamim., known from central to northern Japan and the southern part of the Kurile Islands. The present genus was segregated from Frullania by Kamimura (1961; sub. nom. Hattoria Kamim. nom. illeg., non Schust., 1961) on the basis of the branching type, the shape of the first leaf and underleaf on branch, the total lack of secondary pigmentation, the uniform cell structure of the stem in cross section, and the strongly toothed leaf lobes. The generic concept of Neohattoria was greatly expanded by Schuster (1970), who included eight species and classified them into two subgenera, subgen. Neohattoria (with a single species) and subgen. Microfrullania Schust. (with seven species); however, Hattori et al. (1972) transferred all species of subgen. Microfrullania to a newly segregated genus Schusterella Hatt. et al., thus retaining the monotypic status of Neohattoria. As already described and illustrated by Hattori (1955), Kamimura (1961), Mizutani (1961), Ladyzhenskaja (1963), Schuster (1970), and Hattori et al. (1972), Neohattoria herzogii is closely related to species of both Jubula and Frullania. Regarding the taxonomic desposition of Neohattoria, Mizutani (1961) and Mizutani & Hattori (1969) placed it with Jubula in a subfamily Jubuloideae of Lejeuneaceae and Hattori et al. placed it in Jubulaceae (s. lat.). But, Kamimura (1961), Schuster (1970, 1979), and Guercke (1978) placed it more close to Frullania, e.g. in a subfamily Frullanioideae of Jubulaceae (s. lat.); more recently, Asakawa et al. (1979b), admitting three distinct families, Jubulaceae, Frullaniaceae, and Lejeuneaceae, placed Neohattoria and Jubula in the Jubulaceae (s. str.) but Frullania and Schusterella in the Frullaniaceae.
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  • 37
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    Chromosome numbers of flowering plants in the Netherlands II (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.268 (1966) nr.1 p.541
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    Publication Date: 2015-05-08
    Description: The chromosome number of 157 species of Angiospermae occurring in the Netherlands is dealt with.
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  • 38
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    Distribution maps of Pacific plants (1966)
    In:  Pacific Plant Areas (0373-4293) vol.2 (1966) nr.1 p.53
    Details
    Publication Date: 2015-09-18
    Description: Name: Wahlenbergia marginata (Thunb.) DC. Monogr. Camp. (1830) 143. Family: Campanulaceae.
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  • 39
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    Bibliography of Pacific and Malesian plant maps of Phanerogams. First Supplement (1966)
    In:  Pacific Plant Areas (0373-4293) vol.2 (1966) nr.1 p.7
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    Publication Date: 2015-09-18
    Description: Alangium LAMK.—M. M. J. van Balgooy, Pac. Plant Areas 2: map 72. Complete; Old World, also incl. Indo-Malesia, E. Australia, Pacific (Solomons, New Caledonia, New Hebrides, Fiji); delineated except in Africa and Madagascar, localities indicated only in the Pacific, species density; monograph.
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  • 40
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    Palaeobotany of the Mesophytic III. Plant microfossils from the Upper Bunter of Hengelo, The Netherlands (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.262 (1966) nr.2 p.316
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    Publication Date: 2015-05-08
    Description: The Upper Hunter palynological assemblage described includes 54 species, assigned to 29 genera. Seven genera (Scabratisporites, Guttatisporites, Lapposisporites, Pseudogravisporites, Paralundbladispora, Taeniaepollenites and Tubantiapollenites) and 39 species are new; three generic descriptions are emended (Apiculatasporites, Colpectopollis and Angustisulcites) and three new combinations are proposed. Bisaccate pollen grains average 84 %; within this group no Upper Permian elements could be demonstrated. The assemblage is compared with other European Lower and Middle Triassic assemblages; there are no close similarities to assemblages outside Europe.
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  • 41
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    Notes on the Plagiochilaceae, IX. A Review of the Genus Plagiochila (Dum.) Dum. (Hepaticae) in the Galapagos Islands (1980)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.503 (1980) nr.1 p.7
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    Publication Date: 2015-05-08
    Description: El género Plagiochila (hepatica) esta representada en las Islas Galapagos por ocho (8) especies diferentes: P. bursata (Desv.) Lindenbg., P. galapagona Inoue, P gradsteinii Inoue, P. guilleminiana Mont., P. inouei Grolle, P. scabrifolia Inoue, P. spinifera Ångstr. y P. subplana Lindenbg. El endemismo en este género es más alto que en otros géneros de las hepaticas, con cinco (5) especies que comienzan a conocerse solamente de los Galapagos ( P. galapagona, gradsteinii, scabrifolia, inouei, y spinifera). Las otras tres (3) son comunes y ampliamente distribuidas a lo largo de la America tropical. La mayoría de las especies estan restringidas a las zonas altas-húmedas de vegetación de las Islas Galapagos (matorrales de Zanthoxylum, Miconia y pampa) excepto P. guilleminiana muy común, la cual puede presentarse en la zona seca de transición de bosque. La más amplia variación de Plagiochila ha sido vista en Isabela (Cerro Azul), San Cristobal y Santa Cruz.
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  • 42
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    The generic identity of Polypodium banaense (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.43
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    Publication Date: 2015-05-08
    Description: The species Polypodium banaense C.Chr. is transferred to Crypsinus. The recognition of a genus Phymatopteris Pic. Ser. (= Phymatopsis J.Sm.) separate from Crypsinus is discussed.
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  • 43
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    A scanning electron microscopic study of the seed coat structure of Curtia Chamisso & Schlechtendahl and Hockinia Gardner (Gentianaceae) (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.33
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    Publication Date: 2015-05-08
    Description: The six species of Curtia, including a hitherto undescribed species published here, as well as the monotypic genus Hockinia can be distinguished from each other by the seed coat structure. The anticlinal walls and the cuticle provide the most useful information. Curtia tenuifolia appears to be a complex species, but subsp. tenella can be readily separated from this complex by the seed coat structure. Heterostyly has been found in C. tenuifolia subsp. tenuifolia, C. obtusifolia, and Hockinia montana, but differences in seed coat structure can not be correlated with long-, short-, and equal-styled flowers. The differences in seed coat structure, the length of the seeds, and the number of cells per seed plead for maintaining Hockinia (closely related to Curtia) as a distinct genus. One new species of Curtia is described and a new combination is made.
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  • 44
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    Studies in Annonaceae VI. A leafanatomical survey of genera of Annonaceae in the Neotropics (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.17
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    Publication Date: 2015-05-08
    Description: SETTEN, A. K. van & KOEK-NOORMAN, J.: Studies in Annonaceae. VI. A leafanatomical survey of genera of Annonaceae in the Neotropics. — Bot. Jahrb. Syst. 108: 17—50. 1986. — ISSN 0006-8152. Within the scope of the multidisciplinary research project on systematics of Annonaceae, a survey of the leafanatomical features and their distribution in the neotropical Annonaceae is presented. The studied specimens form a rather homogeneous group, as may appear from the family description given here. A detailed study of the leafanatomical features reveals, that differences are mainly found in the indument, the position and contents of the idioblasts, the structure of the primary vein, the type of crystals in the epidermal cells, and the type of sclereids. Based on character states, phenetic similarities and differences are discussed and compared with the classifications of FRIES (1959) and WALKER (1971).
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  • 45
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    Studies on the flora of the Guianas 20. The Dorstenia species (Moraceae) of south-eastern tropical America (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.133
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    Publication Date: 2015-05-08
    Description: One new species of Dorstenia from Brazil is described: D. carautae C.C. Berg, and four new combinations are made: D. cayapia Vellozo subsp. asaroides (Hooker) C.C. Berg, D. cayapia Vellozo subsp. paraguariensis (Hassler) C.C. Berg, D. cayapia Vellozo subsp. vitifolia (Gardner) C.C. Berg, and D. ramosa (Desvaux) Carauta, Valente & Sucre subsp. dolichocaula (Pilger) C.C. Berg. A list of and a key to the 22 Dorstenia species distinguished in south-eastern tropical America are presented, together with synonymy and distributional data.
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  • 46
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    A palynological study in Geonomoid palms (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.257 (1966) nr.1 p.266
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    Publication Date: 2015-05-08
    Description: In a previous palynological study in Cocoid palms the present authors (Punt and Wessels Boer, 1966) were able to demonstrate a rather strong but not absolute correlation between the pollen types and the staminate flower types within the genus Attalea in the broad sense. The existence of partly apparently primitive, partly very advanced flower types within the otherwise close related group of Geonomoid palms made it worthwhile to investigate the same feature in this group. The Geonomoid palms are usually considered to comprise 7-9 genera of monoecious Arecoid palms which share a large number of characteristics (Burret, 1930; Moore, 1966). The group is very obviously a most natural one. The generic distinctions are mainly based on the flower morphology, notably on differences found in the androeceum and pistil.
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  • 47
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    Project Systematics of Annonaceae (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.516 (1983) nr.1 p.1
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    Publication Date: 2015-05-08
    Description: Recently a multidisciplinary investigation program on the systematics of Annonaceae was started at Utrecht with special emphasis on the Neotropics. This project will be carried out largely within the framework of the UNESCO-project Flora Neotronica. The first goal is to provide a modern classification of the family as a whole, the second is the publication of a series of monographs for Flora Neotropica. The project has been planned and started in close consultation with leading botanists on the Neotropical flora. The Annonaceae are a family of pantropical distribution with between 2000 and 2500 species in ca. 130 genera as presently understood. In the Neotropics the family is represented by ca. 750 species and 35 genera. It is a family of trees, shrubs, and lianas. Its place is within the order of the Magnoliales and its supposedly closest relative is the family of the Myristicaceae. The Annonaceae, although generally considered primitive in many features, nevertheless offer a number of specialized features as well This makes it a promising object using various kinds of comparative morphological, karyological, and anatomical data. Besides, many species are of medicinal or commercial value, such as various species of Annona and Rollinia, the fruits of which are commonly eaten in most countries of Central America and South America; the Soursop (Annona muricata) is widely cultivated throughout the tropics.
    Repository Name: National Museum of Natural History, Netherlands
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  • 48
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    Chromosome numbers and seedling morphology of some Angiospermae collected in Brazil (1969)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.316 (1969) nr.1 p.74
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    Publication Date: 2015-05-08
    Description: The chromosome numbers of 31 species of Angiospermae collected in S. Brazil were determined. Of these species 5 were studied before, the other numbers are new, 11 are first counts for genera and one even for a family. Some notes on the cytology and morphology are added.
    Repository Name: National Museum of Natural History, Netherlands
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  • 49
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    Studies on the flora of the Guianas. II. A new species of Asterophorum (Tiliaceae) from Suriname (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.524 (1983) nr.1 p.377
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    Publication Date: 2015-05-08
    Description: A new species of Asterophorum, A. mennegae, is described from the Sipaliwini Savanne (Suriname). The position of Asterophorum within the family is briefly reviewed, and a key to the 2 species is given.
    Repository Name: National Museum of Natural History, Netherlands
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  • 50
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    Studies on Lejeuneaceae subfam. Ptychanthoideae VI. A revision of Schiffneriolejeunea sect. Saccatae from Asia (1981)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.493 (1981) nr.1 p.71
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    Publication Date: 2015-05-08
    Description: The originally monotypic eastern Malaysian genus Schiffneriolejeunea Verdoorn 1933 has now become a widespread, pantropical group of about fifteen species by the inclusion of species from the genus Ptychocoleus Trev. nom. illeg. Six species are known from Asia, three of which constitute the sect. Saccatae (Verdoorn) Gradst. & Terken comb. nov. These are the widespread Schiffneriolejeunea tumida (Nees) Gradst., the eastern Malaysian S. cumingiana (Mont.) Gradst. and S. nymannii (Steph.) Gradst. & Terken comb. nov. Schiffneriolejeunea tumida is a rather polymorphic species in which two not sharply defined varieties may be distinguished: S. tumida var. tumida with more or less involuted leaf margins, and S. tumida var. haskarliana (Gott.) Gradst. & Terken comb. nov. with plane margins.
    Repository Name: National Museum of Natural History, Netherlands
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  • 51
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    Pollen morphology of some European Rosaceae (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.260 (1966) nr.1 p.290
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    Publication Date: 2015-05-08
    Description: In this preliminary investigation attention was paid to pollen morphology of West-European species of the Rosaceae. Some new terms were used like fastigium, endocingulus etc. The terminology of Iversen and Troels-Smith has been followed in addition to improvements by Erdtman. A key is given to the types and subtypes for the use of pollen analytical investigators. Sanguisorba officinalis appeared to be always 3-colporate and not 6-colporate.
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  • 52
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    Life forms and life strategies in Nanocyperion communities from the Netherlands Frisian Islands (1980)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.488 (1980) nr.1 p.483
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    Publication Date: 2015-05-08
    Description: Nanocyperion communities (s.l.) are considered here as “warp-and-woof” communities; the Nanocyperion components are described separately as synusiae. On the Netherlands Frisian Islands, four main synusiae have been recognized. Raunkiaer life form spectra show few differences between the communities. Life strategy spectra of the Nanocyperion synusiae, based on systems for phanerogams (modified after Bakker 1966) and bryophytes, yield the clearest patterns. A comparison of the ecology of the communities and an interpretation of the spectra in terms of avoidance of stress or competition suggest that inundations and standing crop of the communities are the main factors determining the distribution of the synusiae. Winter inundations overrule the influence of differences in productivity level, which becomes prominent in drier situations.
    Repository Name: National Museum of Natural History, Netherlands
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  • 53
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    Middle Triassic pollen and spores from the Lower Muschelkalk of Winterswijk (The Netherlands) (1968)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.307 (1968) nr.1 p.161
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    Publication Date: 2015-05-08
    Description: A palynological assemblage obtained from marly limestones of the Dutch Lower Muschelkalk is discussed. A qualitative analysis has disclosed its great resemblance to Upper Bunter (Röt) assemblages ; however, differences in quantitative composition were demonstrated. Utilizing palynological data new information can be added to the knowledge of the European Middle Triassic flora.
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  • 54
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    Phytogeographical relations in the North West European heath (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.252 (1967) nr.1 p.630
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    Publication Date: 2015-05-08
    Description: The water economy, the mineral content of the soil, and human influence are the principal ecological factors governing the variation of the heath vegetation of a limited region. Sloping of the surface is also an important factor. In hilly country it is of a twofold nature: on the one hand the difference between high and low altitudes, based on the water economy, on the other hand differences in (micro-) climate. If the hills are higher, this results in greater climatic differences. In extremely oceanic and in boreal regions a rise in altitude of 100 m is sufficient for creating a noticeable decrease in temperature and an increase in precipitation, aerial moisture, and wind force. This results in the occurrence on the hills of heath communities that have their main distribution more to the North. The same observation was made by Gimingham (1961). On Slieve League on the Donegal coast (Ireland) Salix herbacea and Lycopodium selago occur in the heath at an altitude of 600 m, near Tongue on the Scottish north coast Dryas octopetala, Saxifraga oppositifolia, Alchemilla alpina and Thalictrum alpinum at an altitude of 60 m. West of Apeldoorn in the Netherlands are found extensive stretches of heath with abundant Vaccinium myrtillus and V. vitis-idaea at an elevation of 60-80 m, even on south-facing slopes. This is an area with high precipitation due to ascending air west of the hill ridge of the Eastern-Veluwe. Here the Vacciniums, elsewhere requiring the protection of the forest, can tolerate the habitat of the open heath (Stoutjesdijk, 1959; De Smidt, 1966). Higher elevation combined with north-facing slopes creates extreme conditions e.g. on Roc Trévézel (300—360 m) in Brittany, with Vaccinium myrtillus, Melampyrum pratense, Hymenophyllum wilsonii and Rhytidiadelphus loreus. These species are virtually lacking in the surrounding plains where the heath consists of such South Atlantic species as Erica cinerea, E. ciliaris, Ulex gallii, Lobelia urens, Lithospermum prostratum and Symethis planifolia.
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  • 55
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    Three new species and a new subspecies of Marcgravia and Souroubea (Marcgraviaceae) from Central America (1969)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.320 (1969) nr.1 p.197
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    Publication Date: 2015-05-08
    Description: Frutex epiphyticus, ramis quadrangularibus, angulis lenticellatis. Folia ramorum fertilium petiolis 2-5 mm longis, 1.5-2 mm latis; lamina chartacea vel subcoriacea, oblanceolato-oblonga vel interdum elliptico-oblonga, 9-14 cm longa, 3-4.5 cm lata, ápice acuminata, acumen 1-2 cm longum, basi attenuata, costa subtus prominente, nervis lateralibus supra et subtus prominentibus vel prominulis, glandulis hypophyllis aliquot patelliformibus vel foveolatis, parvis, 3-5 in folii parte inferiore oblique seriatis, aliis minutis, punctiformibus, nigricantibus, aequaliter dispersis. Flores in racemis umbelliformibus (20-) 30-45-floris; rhachis ad circa 1 cm longa; nectaria clavato-cucullata, stipitata, stipes 5-8 mm longus, cucullus 1-1.5 cm longus, circa 4-5 mm diametro, ore late-rotundata, margine plerumque recurvo, apiculata; pedicelli 5-7 cm longi, lenticellati; bracteolae sepaloideae, circa 1 mm longae, 2-3 mm latae; sepala suborbicularia vel reniformia, circa 2-3 mm longa, circa 4-5 mm lata, margine glandulosa; corolla oblongo-subconoidea, circa 1 cm longa, circa 4-5 mm diametro; stamina 18-33, filamentis applanatis, liberis, inaequalibus, in alabastro 4-6 mm longis, antheris linearibus, 3-5 mm longis, circa 1 mm latis, basi subsagittatis; ovarium circa 2-3 mm diametro, 6-11-loculare. Fructus globosus, circa 9 mm diametro, stylo persistenti ornatus. Typus : Costa Rica, vicinity of Vara Blanca, North slope of Central Cordillera, between Poás and Barba Volcanoes, alt. 1700 m, April 1938, Skutch 3762 (holotype US; isotypes GH, MO, NY, S). Paratypes; Costa Rica: Heredia: Cerro de las Caricias, North of San Isidro. Standley & Valerio 52202, 52248,52375 (US); Panama:Chiriquí: Boquetedistrict, Bajo Chorro, Davidson 398 (GH, US).
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  • 56
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    The Marine Algal vegetation of St. Martin, St. Eustatius and Saba (1968)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.308 (1968) nr.1 p.1
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    Publication Date: 2015-05-08
    Description: Although algology deals with a large group of plants, widespread and of a great morphological diversity, the history of this branch of botany is fairly young. Linnaeus (1753) listed in his Species Plantarum under the heading “Cryptogamia—Algae” only five genera of plants which are still accepted as algae at the present time. Under the same heading he also described a number of liverworts, lichens and sponges and a few other things.
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  • 57
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    Joseph Gaertner and his Carpologia (1969)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.321 (1969) nr.1 p.216
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    Publication Date: 2015-05-08
    Description: Joseph Gaertner (1732-1791) was the first to develop a carpological taxonomy in his book De fructibus et seminibus plantarum (1788-1791). The scope and background of this work are discussed; its history is sketched on the basis of the Banks correspondence at the British Museum; the main sources of material are listed. A brief outline of Gaertner’s life is given, also mainly based on letters from him and his contemporaries to Joseph Banks.
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  • 58
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    Some cytological observations in the Loganiaceae III (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.264 (1966) nr.1 p.490
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    Publication Date: 2015-05-08
    Description: Previously, the chromosome numbers of some species of Loganiaceae were dealt with (Gadella, 1961, 1962, 1963). The chromosome numbers of 7 species are reported in this paper, of which 4 species, all belonging to the genus Strychnos, had not been investigated cytologically before. The materials, kindly supplied to me by Dr. A. J. M. Leeuwenberg and by Ir. F. Breteler, were collected in the form of seed-samples in the Ivory Coast and in Cameroun. The plants of 2 species originate from botanical gardens. Living material of all species (except for Strychnos lernata Gilg. ex Lwb.) is grown in the botanical garden of Wageningen (WAG). The determination of the chromosome numbers was based on the study of roottipmitoses. Roottips of the plants were fixed in Karpechenko, embedded in paraffin, sectioned at 15 micron and stained according to Heidenhain’s haematoxylin method. The results may be summarized as follows: 1. Nuxia floribunda Benth.: 2n = 38 Origin of the material: S. Africa, obtained from the University of Stellenbosch. Seeds probably collected in the wild. Herbarium material of the mother-plant: J. J. Bos, no. 310 (WAG). Herbarium material of seedling: A. J. M. Leeuwenberg no. 3665 (WAG). References: Gadella (1963): 2n = 38. 2. Strychnos dinklagei Gilg.: 2n = 44 Origin of the material: Ivory Coast, Forêt d’Abouabou, between Abidjan and Grand Bassam. Herbarium material of the mother-plant: R. A. A. Oldeman no. 845 (WAG). Herbarium material of the seedling: A. J. M. Leeuwenberg no. 3561 (WAG). References: Gadella (1963); 2n = 44. 3. Strychnos innocua Del. subsp. innocua: 2n = 44 Origin of the material: Ivory Coast, 16 km S. of Ferkéssédougou. Herbarium material of the mother-plant: A. J. M. Leeuwenberg no. 4435 (ABI, WAG). 4. Strychnos millepunctata Leeuwenberg: 2n= 441) Origin of the material: Ivory Coast, Forêt d’Abouabou, between Abidjan and Grand Bassam. Herbarium material of the mother-plant: J. J. F. E. de Wilde & A. J. M. Leeuwenberg no. 3447 (ABI, WAG). 5. Strychnos samba Duvign.: 2n = 44 Origin of the material: Cameroun, 4 km S. of Nguélémendouka. Herbarium material of the mother-plant: F. J. Breteler no. 2051 (WAG). 6. Strychnos spinosa Lam.: 2n = 44 Origin of the material: obtained from the botanical garden of Groningen, the Netherlands, origin unknown. Herbarium material of cutting: A. J. M. Leeuwenberg no. 3564 (WAG). References: Mangenot and Mangenot (1958): 2n = 44. Miège (1960): 2n = 44. Gadella (1962): 2n = 44. 7. Strychnos ternata Gilg. ex Leeuwenberg: 2n = 44 1) Origin of the material: Cameroun, 27 km from Bertoua on road to Bétaré Oya. Herbarium material of the mother-plant: F. J. Breteler no. 2196 (WAG). Herbarium material of the seedling: F. J. Breteler no. 2994 (WAG). Twenty-one species of the genus Strychnos have been studied up to the present. The following chromosome numbers have been counted: 2n = 24 (3 species, counted by Mohrbutter, 1936); 2n = 44 (16 species); 2n = 88 (2 species). From these data the conclusion may be drawn that the more common basic number of the genus Strychnos is X = 11 or 1 = 22.
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  • 59
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    A reassessment of the Cyphellaceae (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.231 (1966) nr.1 p.95
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    Publication Date: 2015-05-08
    Description: A suitable subtitle for this paper would have been “The rise and fall of a family”. What is usually called the Cyphellaceae is an instructive example of a situation not uncommonly encountered in the current systematics of mycology: a family retained in a traditional sense by some mycologists and considered by them as good a family as any, while others are convinced that it is nothing but a handy bin from which part of the contents has already been taken out and disposed of by scattering it over various groups, but which is still needed for keeping what remains. We do not yet know what to do with this considerable remainder, mainly because the published accounts are inadequate and the species have not yet been scrutinized anew in the light of present-day taxonomic requirements. In order to understand the basic idea of the Cyphellaceae the type species may be briefly introduced. The fact that Cyphella digitalis was originally described as Peziza digitalis is telling, and one could not do better than characterize it as a ‘discomycete’ with basidia, viz. a cup-shaped fruit-body with the hymenium lining the smooth inside or ‘disk’. If one were pressed to form an opinion about its taxonomic position from a dried, not annotated collection and without the aid of the microscope, one would even now, very likely, dispose of it as a discomycete. However, there is little doubt that in nature the cup is directed downward at least when mature, in contradistinction to the average discomycete in which the hymenium containing the asci is directed upward. This difference is a reflection of the two modes of violent spore discharge inherent in the hymenomycetous basidium and ascus; it has been explained through Buller’s well-known researches. The cups in the various species are not always typically cup-shaped; in a number they are more or less tubular or else more flattened and even disk-like.
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  • 60
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    La nomenclature au service de la Botanique Systématique (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.223 (1966) nr.1 p.36
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    Publication Date: 2015-05-08
    Description: La systématique scientifique, qui classe tous les êtres vivants, actuels et fossiles, d’après leurs affinités naturelles ou présumées telles, doit pouvoir donner à chaque taxon un nom stable, permettant de le désigner avec son rang taxonomique et de l’identifier facilement. La nomenclature botanique n’échappe pas à cette exigence et depuis que C. Linné généralisa, en 1753, la nomenclature binominale, le besoin s’est fait sentir de compléter et de préciser, sur le plan international, les principes et les règles établis par l’illustre botaniste suédois.
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  • 61
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    Two questions about mass selection in Connecticut Shade Tobacco (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.242 (1967) nr.1 p.512
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    Publication Date: 2015-05-08
    Description: From the general discussion of the effect of mass selection on the genotypic array of the next generation we have seen that under certain conditions mass selection can lead to homozygosity, but does not do so necessarily. Outcrossing, mutations and disadvantages of certain genotypes may prevent reaching equilibrium condition with complete homozygosity even in the simplest case of one locus with two alleles. It depends on the magnitude of these factors and the degree of heterozygosity of the variety how close to genetic uniformity we ultimately can come. The advancing of one generation has only a small effect, which becomes less as the frequency of one of the genotypes becomes less. Mass selection can reduce segregation in a variety, but only in ideal situations and only in small steps. Obviously the most effective way to promote genetic uniformity is to begin with non-segregating material obtained through careful inbreeding and within-family selection. Then, if this is available, mass selection is hardly necessary and seed collection should be done so as to prevent a return to a heterozygous condition. When only segregating populations are available, some changes can be expected if the selection intensity is low, but they will not be great and may not be noticed until after several generations. Returning to the original question of the stability of the tobacco variety, the conclusion can be drawn that when large numbers of plants from a field are selected as seedplants the changes in the next generation as a whole will be small, regardless of the selection procedure used. When 10-30 % of all plants are allowed to produce seed we cannot expect important changes. Also, when the environmental variations are as great as in shade tobacco, the possibilities of selecting against certain genotypes for a number of characteristics simultaneously becomes virtually impossible. Concerning whether or not mass selection can lead to improvements in the variety, it was explained that the selection intensity and the heritability of a character determine the selection response. Perhaps this response can be predicted in the case of one character, but it becomes difficult, if not impossible, to forecast the results when many characters are involved at the same time. Reference was also made to a selection index which has been effective in livestock breeding. Even if an index could be determined for shade tobacco, its use is not necessarily effective, as Kempthorne (1957) pointed out. The genotype-environment interaction makes questionable the choice of certain fields over others. Without experiments, such questions cannot be answered. It is likely that mass selection with low selection pressure changes a variety very little. Again, in a field where up to 30 % of the plants are selected for seed, the pressure cannot be very great and we should not expect great changes. Only when a few plants are carefully selected for certain characters should progress become noticeable, as is the experience of single plant selection in plant breeding. We conclude that mass selection for seed and plant breeding to improve a variety should not be confused with each other. Each has its own aims and methods, which are not interchangeable. Where uncertainty exists about seed, progeny tests usually are made to compare a seed with the parent seed. Bolsunov (1959) has described a number of such procedures for tobacco, though the more elaborate of them appear impractical.
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  • 62
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    J. Lanjouw en het Utrechtse Botanisch Museum 1926-1966 (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.220 (1966) nr.1 p.5
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    Publication Date: 2015-05-08
    Description: Eén van de grote giften van A. A. Pulle, Lanjouw’s voorganger als Hoogleraar in de Bijzondere Plantkunde en de Plantengeographie te Utrecht, was zijn goede keus van medewerkers. Hij kon die keus maken dank zij een andere gift, die van leermeester. Pulle’s stimulerende activiteit als hoogleraar luidde de wedergeboorte in van de Nederlandse plantensystematiek door een stroom van leerlingen waarvan er velen ook nu nog een belangrijke rol spelen in de botanische wereld. Vele van Pulle’s leerlingen uit de eerste tijd moesten Utrecht verlaten omdat er in de twintiger jaren nu eenmaal nog geen sprake was van een redelijk gesalariëerde wetenschappelijke staf. Eén leerling echter werd zo gefascineerd door de vele mogelijkheden die het Utrechtse instituut bood, dat hij bleef, niettegenstaande de soms zeer ongunstige economische en organisatorische omstandigheden. Deze leerling, Lanjouw, toonde reeds toen de taaie volhardendheid die zijn medewerkers en leerlingen in later jaren zo goed leerden kennen en waarderen. Reeds van de eerste jaren van zijn assistentschap aan stonden Lanjouw de idealen voor ogen die hij in de loop van zijn lange loopbaan van assistent tot directeur voor het grootste gedeelte zou weten te realiseren. Deze loopbaan begon toen hij op 1 januari 1926 benoemd werd tot assistent bij de Bijzondere Plantkunde. In het jaar waarin we het feit herdenken dat het veertig jaar geleden is dat Lanjouw verbonden werd aan het Botanisch Museum valt ook de honderdenvijftigste verjaardag van het herbarium. Plantensystematiek is te Utrecht in meerdere of mindere mate beoefend van de stichting van de Universiteit af. Op 30 oktober 1816 echter werd het eerste herbarium voor de Universiteit verworven. In 1966 herdenken we dus eigenlijk twee jubilea. De periode van werkelijk actief systematisch onderzoek is echter veel korter geweest: de korte jaren van Miquel’s werkzaamheid (1859-1871) en de periode die in 1906 begon met de aanstelling van Pulle tot Lector in de plantensystematiek. Pulle gaf, voor het eerst na Miquel, en mede dank zij de stimulerende invloed van Went, een nieuwe stoot aan het plantensystematisch onderzoek in Nederland en wel vooral aan het onderzoek van de tropische flora’s. Een reeks van leerlingen wijdde zich onder zijn leiding aan de studie van de flora’s van Suriname en Nederlands Indië. Het is voldoende hierbij de namen van van Sloten, Lam, van Steenis, en Uittien te noemen om deze ontwikkeling te illustreren. Lanjouw koos voor zijn proefschrift de Surinaamse Euphorbiaceae en het was uit dit werk dat de „Flora of Suriname” voortkwam. Zonder ook maar iets tekort te doen aan de rol van Pulle kan gezegd worden dat van het begin van zijn loopbaan af Lanjouw actief heeft medegewerkt aan de opbouw van het Botanisch Museum en dat hij bij de ontwikkeling van de zo belangrijke „Flora of Suriname” een doorslaggevende rol heeft gespeeld. Zijn dissertatie „The Euphorbiaceae of Suriname” vormde, ten dele, tegelijk de eerste aflevering van de Flora.
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  • 63
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    Bistella Adans. versus Vahlia Thunb. (Vahliaceae) (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.229 (1966) nr.1 p.84
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    Publication Date: 2015-05-08
    Description: The somewhat peculiar genus Vahlia Thunb. (1782) was formerly regarded as an anomalous member of the Saxifragaceae, but in 1959 it was segregated as the monotypic family Vahliaceae by Dandy (in Hutchinson, Fam. Fl. Pl. ed. 2, 1: 461). The genus includes about three species, all of them highly variable in stature, flower size, and indumentum; this has resulted in the description of more than twenty “species”, whose names now appear in synonymy. This note, however, is chiefly concerned with the generic name, since it appears that Vahlia Thunb. is not correct under the Code and must be replaced by Bistella Adans. (1763). In the synonymy under the new combinations, all the relevant names so far traced are included, but it may well be that an experimental approach to the problem of specific and infraspecific limits and the taxonomic value of the characters hitherto relied upon for differentiation would result in considerable changes. Bistella Adans. (1763) was cited in the form “ Bistella Lippi 243 – Ascyroides Lippi” and the name than fell into abeyance until it was resuscitated by Delile in 1826. He described plants collected by Cailliaud, and identified a number of them with those of Lippi. In particular, he identified Lippi 243 (and 244) with the Cailliaud plant which he named “ Bistella geminiflora Delil. (Descript, des plantes découv. par M. Cailliaud, pl. II. fig. 4). – Ascyroides Lippi (Manusc. nos. 243 et 244).” It must be emphasized that the taxonomic identification of “ Bistella Del.” with Vahlia Thunb. has never been questioned, but the identity of Adanson’s Bistella with Bistella geminiflora Del. has been overlooked; this species, as represented by Lippi’s plant, is the type of the generic name Bistella Adans.
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  • 64
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    Foliar Sclereids in the Marcgraviaceae (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.250 (1967) nr.1 p.585
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    Publication Date: 2015-05-08
    Description: A survey is given of the types of the sclereids and the sclereid patterns occurring in the leaves of the Marcgraviaceae. Eight main categories of sclereids are distinguished on the base of the morphology of the sclereids. A comparison is made with the foliar sclereids found in some other families. The systematic value and the function of the sclereids are briefly discussed. Some new combinations of names are published.
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  • 65
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    The genus Mathewsia (Cruciferae) (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.232 (1966) nr.1 p.102
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    Publication Date: 2015-05-08
    Description: Among the endemic and sometimes localized genera of the Cruciferae occurring in South America, Mathewsia stands apart as an element of the distinctive desert flora of southwestern Peru and western Chile. As far as present records show, the genus is confined to a relatively narrow strip wholly west of the main Cordillera, not far from the Pacific Ocean. Some species are confined to washes or small arroyos known as quebrades. Others occur as part of the lomas vegetation of western Peru. Populations of the same species occupying different quebradas often differ from each other to a limited degree and in many instances probably little or no gene exchange occurs between them. The intervening dry areas, separating one quebrada from another, are completely unsuited to the growth of Mathewsia and form a natural barrier to the spread of any given population. Thus, with habitats only spottily available, the evolutionary divergence that has resulted in localized species of Mathewsia is readily understandable. One of the real difficulties in studying a group of species inhabiting areas that have been infrequently visited by botanists, is the paucity of available material. Furthermore, unlike some species of Cremolobus (Khanna and Rollins, 1965), the numbers of individuals in a given locality appear to be few and scattered. In some instances, only a single specimen of a given species has been found for study in all of the herbaria consulted. Under these circumstances, the bare essentials of the species are all that can be given and nothing can be said about their variation or distribution. The purpose of this paper is to present, as a first approximation, a taxonomic treatment of Mathewsia that will provide a sound basis for further research on the genus.
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  • 66
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    Some aspects of the pollen morphology of the genus Sanguisorba L. (Rosaceae) (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.293 (1967) nr.1 p.305
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    Publication Date: 2015-05-08
    Description: Eight species of the genus Sanguisorba L. were studied. Two distinct types could be recognized, viz., the Sanguisorba minor and the Sanguisorba officinalis type. Sanguisorba filiformis (Hooker fil.) Handell-Mazzetti appeared to be a transition between these two types.
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  • 67
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    Studies on Colombian Cryptogams. X. The genus Everniastrum Hale and related taxa (Lichenes) (1980)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.508 (1980) nr.1 p.333
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    Publication Date: 2015-05-08
    Description: The Colombian representatives of the lichen family Parmeliaceae with linear lobes and marginal cilia have been revised. A key is given and morphology, chemistry and distribution are treated of 12 species in three genera: Cetrariastrum Sipm. gen. nov, with C. andense (Kärnef.) Sipm. comb. nov., C. dubitans Sipm. spec. nov. and C. equadoriense (Sant.) Sipm. comb. nov., Everniastrum with E. catawbiense (Degel.) Hale, E. cirrhatum (Fr.) Hale, E. columbiense (Zahlbr.) Hale, E. fragile Sipm. spec. nov., E. planum Sipm. spec. nov., E. sorocheilum (Vain.) Hale and E. vexans (Zahlbr.) Hale, and Parmelina cleefii Sipm. spec. nov. and P. swinscowii (Hale) Hale.
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  • 68
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    The Vegetation of the Páramos of the Colombian Cordillera Oriental (1981)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.481 (1981) nr.1 p.1
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    Description: A phytosociological survey based on methods of the Zürich-Montpellier School was carried out in the páramo vegetation of the Cordillera Oriental, Colombia. The study area covers about 10,000 and comprises the páramo between the Nevado de Sumapaz (3°55'N, 4250 m), the Sierra Nevada del Cocuy (6°25'N, 5493 m) and the Páramo del Almorzadero (7°N, 4375 m). The páramo vegetation was studied along various altitudinal transects from the upper forest line (3000-3500 m) up to the lower limit of the snowcap (4800 m). A general description of the study area includes data on geology, geomorphology, soils, climate, flora, phytogeography, morphological characters of the vegetation, fauna and landuse. The evolution and Quaternary history of páramo vegetation and climate is reviewed, incorporating the first data from the Lateglacial and Holocene of the Páramo de Sumapaz. The general altitudinal zonation of the páramo vegetation was studied and is presented for both the dry and the humid side of the Cordillera. The zonal and azonal plant communities are described including their physiognomy, composition and syntaxonomy, habitat and distribution. Eighty five syntaxa from the rank of variant to that of the class are newly described, 17 of which are provisional. The vegetation is not ranked syntaxonomically yet, but described on the basis of preliminary tables. A number of azonal communities, part of them of lesser extent, are described in a similar way. The páramo vegetation is primarily determined by the tropical diurnal high mountain climate. The diversity of the páramo vegetation is related to temperature (altitudinal gradient) and to humidity (dry and wet climate). The presence of zonal bunchgrass páramo, bamboo-bunchgrass páramo or bamboo páramo mainly depends on the complex interrelation between these factors. Finally a synthesis is provided on ecology, morphology and phytogeography of the páramo vegetation of the study area.
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  • 69
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    Taxonimic and morphological notes on Clarisia (Morac.) (1968)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.302 (1968) nr.1 p.309
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    Description: Studies in the Moraceae showed that Acanthinophyllum should be regarded as congeneric with Clarisia, and that Clarisia spruceana and Aliteria sagoti are conspecific with Clarisia ilicifolia. Some characters of the inflorescences and seeds and the position of Clarisia and its relationships with Trophis and Sorocea are discussed.
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  • 70
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    Studies on Colombian cryptogams XVIII. The genus Stereocaulon (Schreber) Hoffmann (Lichenès) (1982)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.517 (1982) nr.1 p.483
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    Description: Nineteen species of Stereocaulon are treated from the northern Andes, mainly from Colombia. Descriptions and keys are given, with notes on the north-Andean distribution and ecology. Seven species are new for the Colombian flora, viz. St. atlanticum, St. claviceps, St. corticatulum (chem. strain with atranorin and perlatolic acid), St. delisei, St. microcarpum, St. pachycephalum and St. pomiferum. St. crambidiocephalum is reported for the first time from Costa Rica, as is St. didymicum from Venezuela, and St. delisei is reported for the first time from the New World (Colombia and Costa Rica). St. cornutum Müll. Arg. is reduced to synonymy under St. pityrizans Nyl.
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  • 71
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    Wood and leaf anatomy of Opiliaceae (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.533 (1983) nr.1 p.147
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    Description: The wood and leaf anatomy of representatives of the 9 genera of the Opiliaceae are described in detail. It is possible to separate the genera on the base of both wood- and leaf anatomical characters. Herein the presence of cystoliths of varying shape and size is important. Some comments on the taxonomy and possible phylogeny of the familiy are given.
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  • 72
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    Isoëtes Palmeri H.P. Fuchs, eine neue Isoëtes-Art des Páramo (1981)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.510 (1981) nr.1 p.165
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    Publication Date: 2015-05-08
    Description: Isoëtes Palmeri with a distribution in the High Andes from the Páramo of Venezuela to the Páramo of Ecuador is described as a new taxon, and dedicated to the then American specialist of the genus, Thomas Chalkley Palmer (1860-1934). The new species belongs to the tropical-Andeanaustral-antarctic section Laeves, described as new here as well. The publication of the new species had to be anticipated to the projected monographic treatment of the South-American representatives of the genus Isoëtes, as A.M. Cleef, Utrecht intends to base a new association, the Isoëtetum Palmeri on this new taxon, observed and collected by him at many instances within the Colombian Páramo between 1971 and 1980 in the context of the preparation of his doctoral thesis now under way.
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  • 73
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    Einige bemerkungen über die pollenführung der Braunkohlengrube “Maria Theresia”, Herzogenrath (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.261 (1966) nr.1 p.308
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    Publication Date: 2015-05-08
    Description: The pollenflora of the browncoal mined in the quarry “Maria Theresia”, Herzogenrath, Western Germany has been investigated. Samples were taken along a section of 12.50 meters at intervals of 50 centimeters. Identifications were made on the basis of form-genera and form-species; this working method gives a broad information on pollen types, but does not relate the fossil pollen types primarily to recent plant taxa. Pollen types which are considered to belong to Betulaceae/Myricaceae make up the biggest part of the pollen assemblages. The construction of a “Composite diagram” for Betulaceae/Myricaceae proved to be useful and might give a better idea on paleoecologic conditions. The stratigraphic position of the browncoal examined is thought to be Lower “Hauptflöz”, possibly Morken or Frimmersdorf Horizont.
    Repository Name: National Museum of Natural History, Netherlands
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  • 74
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    Chromosome numbers of Parnassia palustris L. in the Netherlands (1965)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.215 (1965) nr.1 p.242
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    Publication Date: 2015-05-08
    Description: In Sweden Erlandsson (1942) showed that the species Parnassia palustris L. has two chromosome numbers, 2n = 18 and 2n = 36. Rozanova (1940) found the same numbers in plants collected in the U.S.S.R. Some morphological differences could be demonstrated in the Swedish material (Erlandsson, 1942). This was confirmed by Löve and Löve (1944) and, therefore, these authors (1950) distinguish 2 species: the diploid Parnassia palustris L. em. Löve and the tetraploid Parnassia obtusiflora Rupr. em. Löve, also separated by sterility barriers and by their geographical distribution. In the Netherlands a tetraploid population was found by Gadella and Kliphuis (1963). As the tetraploid population occurs in an area situated far south of the circumpolar distribution area of the tetraploid plants, it seemed worthwhile to determine the chromosome numbers of other plants of Parnassia palustris L. growing in the Netherlands.
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  • 75
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    Novitates Burseracearum III (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.225 (1966) nr.1 p.45
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    Publication Date: 2015-05-08
    Description: Protium aracouchini (Aubl.) March. var. angustifolium Swart n. var. Folia 1- usque ad 5-juga; interjugum basale petiolo plerumque longius sed interjugis aliis brevius; petioluli breves; foliola oblongolanceolata 7.5-10 cm longa, 2-2.75 cm lata, apicem versus distincte angustata, apice gradatim in acumen lineare sexies usque ad nonies longius quam latius acuminato; nervi sec. utrinque usque ad 20. Holotypus: Lindeman 4504 (U, 078268B).
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  • 76
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    Stephani’s use of the “Sprucean” subgeneric names in Lejeunea, 1888-1893 (1982)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.529 (1982) nr.1 p.718
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    Publication Date: 2015-05-08
    Description: Gradstein et al. (1982) propose to conserve four generic names of Lejeuneaceae: Lopholejeunea (Spruce) Schiffn., Acrolejeunea (Spruce) Schiffn., Trachylejeunea (Spruce) Schiffn. and Taxilejeunea (Spruce) Schiffn., each of which was introduced as a subgeneric name in Lejeunea by Spruce (1884), and subsequently raised to generic rank by Schiffner in his treatment of the Hepaticae in Engler-Prantl (preprint 1893) [see proposals to conserve 675-678 see p. 746]. Although Spruce (l.c.) used for his Lejeunea species a binary nomenclature by combining subgeneric names with specific epithets, it is clear (e.g. text, index) that the binomina are meant as Lejeunea combinations and they are considered as such by most authors (see Gradstein et al. for further details). Before 1893, however, the Sprucean subgeneric names were used in various papers by F. Stephani in a “seeming” generic rank; indeed Stephani now and then referred to them as “genus.” A chronological survey of a number of relevant papers by Stephani, mainly those published in Hedwigia, was given by Bonner et al. (1961), in conjunction with a brief discussion of the subject of this paper. These authors were the first to realize that on the basis of Art. 42 ICBN some generic names in Lejeuneaceae, e.g. Taxilejeunea and Trachylejeunea, can be considered as validly published by Stephani in Hedwigia 28, 1889. Later on Grolle (1979) demonstrated valid publication of monotypic new Lejeuneaceae genera by Stephani in the Bot. Gaz. 15, 1890, e.g. Lopho-Lejeunea and Acro-Lejeunea. For an evaluation of the status of Lopho- Lejeunea Steph., Acro-Lejeunea Steph., Trachylejeunea Steph. and Taxilejeunea Steph., one might consider these names against the background of the entire context of Stephani’s work on Lejeuneaceae until 1893. As the survey of Stephani’s papers in Bonner et al. is rather incomplete, and as there are several points of divergence in opinion, a new analysis of Stephani’s relevant papers (before Sep 1893) is presented below.
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  • 77
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    Les types d’enracinement des espèces du Juncion maritimi méditerranéen. II (1965)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.216 (1965) nr.1 p.199
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    Publication Date: 2015-05-08
    Description: Les systèmes radiculaires des espèces des prés salés du Juncion maritimi ont été étudiés. Nous avons distingué six types morphologiques principaux d’enracinement. Les particularités des différents types et espèces ont été décrites et dessinées. La répartition des différents types d’enracinement dans le Junco-Triglochinetum et le Caricetum divisae a été interprétée écologiquement. Les racines de nombreuses espèces du Juncion maritimi sont pourvues de lacunes aérifères. C’est une adaptation au niveau élevé de la nappe phréatique. La résistance mécanique du sol a également une influence sur le système radiculaire. La concurrence des systèmes radiculaires a été discutée. On a essayé de différencier les groupements végétaux par leurs types d’enracinement. Je tiens à remercier M. J. Braun-Blanquet, directeur de la Station Internationale de Géobotanique Méditerranéenne et Alpine à Montpellier, de son aide et de l’intérêt stimulant qu’il a porté à mon travail, et M. J.-M. Betsch de son conseil. Les subventions de la Koninklijke Nederlandse Akademie van Wetenschappen (Montpellier fonds) et du Utrechts Universiteitsfonds m’ont facilité le séjour à la Station et rendu possible ces recherches.
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  • 78
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    A sketch of the vegetation and flora of the Kappel Savanna near Tafelberg, Suriname. I (1968)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.309 (1968) nr.1 p.495
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    Publication Date: 2015-05-08
    Description: In February and early March, 1961, the senior author spent three weeks on a small savanna in the approximate centre of Suriname, South of Tafelberg, (map 1). He was accompanied by Mr. W. H. A. Hekking. The time was spent in exploring the flora of the savanna and the adjacent forest. As a detailed study of the vegetation of the savannas of northern Suriname was then in progress, several extensive papers being in preparation (Heyligers, 1963; Van Donselaar, 1965; Van Donselaar-Ten Bokkel Huinink, 1966), it was felt that a more thorough inventory of the vegetation and the flora of the savanna might be rewarding. When a general impression of the plant-cover of the area had been obtained, eight representative sample-plots were selected, their vegetation was analyzed and described after the method of the French-Swiss school of phytosociology, and pits were dug in the soil down to bedrock, samples being taken in every distinctive-looking layer. This work was carried out jointly by the senior author and W. H. A. Hekking; part of the floristic exploration was also done by or with Dr. R. M. Tryon, Harvard Herbarium, Cambridge, Mass. The results are here presented. It was felt that in order to integrate them with those obtained elsewhere in Suriname, the collaboration of a specialist familiar with the Suriname savannas in general was required. This was the junior author’s task, who, after his prolonged work on the savannas of northern Suriname, later expanded his work to those of the southern part of the country. The preliminary results of the last-named study are in the press; more detailed field work is in progress as this paper goes to the press.
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  • 79
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    Stevens Pond: A postglacial pollen diagram from a small Typha Swamp in Northwestern Minnesota, interpreted from pollen indicators and surface samples (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.276 (1967) nr.1 p.145
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    Publication Date: 2015-05-08
    Description: The pollen assemblages of a core in the coniferhardwood formation in northwestern Minnesota are compared with the floristics of the recent vegetation in the region. Percentage levels of the main tree components have been compared first with those from recent surface samples taken at the same short distance from various types of upland forests and second with the regional values of the pollen rain in this area (McAndrews 1966). To that end all the data were recalculated on the basis of special pollen sums. The regional diagram of Stevens Pond shows basically the same assemblage zones as established by McAndrews but without the late-glacial Picea-Populus assemblage zone. The pollen in the following Pinus-Pteridium assemblage zone has been interpreted as derived from a pine forest. During the midpostglacial expansion of the prairie eastwards the regional vegetation must have been a Quercus savanna, locally with prairie. Corylus reaches relatively high percentages in this zone. Among the prairie elements especially the occurrence of Lilium philadelphicum may be noted. In the next zone the pollen diagram shows a rise of the curves of mesic elements. In spite of this the comparison with recent surface samples indicates a xerophytic Quercus forest rather than a mesophytic deciduous forest. In the following Pinus assemblage zone pine was present along the margin of Stevens Pond and is therefore overrepresented in the diagram. In the uppermost zone the pollen curves show the effect of logging of the forest about 1900. Pollen of cultivated and introduced plants appear in this zone. Many local pollen types were found, on account of local overrepresentation. This made it possible to compare the local Stevens Pond sequence with the composition of recent lowland vegetation types. The pollen sequence was similar to a large extent to the recent pattern of lake filling, starting with a eutrophic vegetation of Typha latifolia and Salix in the prairie period and leading to a Larix forest and then to a mesotrophic Picea mariana forest, the present edaphic climax on peaty soils. There is a delay, however, in the introduction of acidophilous species, the Larix forest being without Sphagnum and Ericaceae. This is explained by assuming an influence of the vegetation of the surrounding slopes upon the local vegetation. About 1900 the bog forest was destroyed by logging operations and replaced by the present Typha latifolia mat.
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  • 80
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    A new species of Roupala (proteaceae) in Suriname (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.266 (1967) nr.1 p.334
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    Publication Date: 2015-05-08
    Description: Arbor 8 m alta, altitudine pectoris 20 cm diam.; ramuli teretes, glabri. Folia coriacea, glabra, plana, late elliptica vel late obovata, apice obtusa, rotundata vel subacuminata, basi attenuata et in petiolum decurrentia, 9-12 cm longa, 5-7½ cm lata, statu sicco supra viridia, leviter nitida, infra olivacea, opaca, marginibus subrevolutis, integris; costa et nervi primarii utraque facie prominentes, nervi primarii infimi tenues, inconspicui, spatio brevi margine paralleli, ii paris secundi costae paralleli et valde proximi supra basin folii, tum divergentes sub angulo 30°, plus minusve recti inter costam et marginem et 1-1½ cm a margine remoti, nervis primariis paris tertii coniuncta in parte tertia superiore laminae; nervi primarii tenuiores singuli vel plures primariis maioribus intercalati; venae secundariae leves, paucae, ad marginem et apicem laminae arcuatim coniunctae, rete supra occulto, infra minime claro; petiolus 1-2 cm longus, 2 mm crassus. Inflorescentiae axillares, 10-14 cm longae; rhachis glabra; flores geminati; pedicellus communis perbrevis, pedicellus communis cum individuali 4-4½ mm longus, glaber; bracteae minimae, triangulares mox deciduae; alabastra cylindrica, apice clavata, lutea, 8-9 mm longa; lobi perianthii glabri, crassi, apice leviter excavati, 8-9 mm longi, 1 mm lati, anthesi recurvati, pallide flavo virides; filamenta brevissima, lata, parte superiore loborum perianthii affixa; antherae 2.6 mm longae; ovarium brevissime et adpresse fusco-pilosum, 2 mm altum, sensim in stylum protractum; stylus apice leviter clavatus, stigmate terminali; glandulae disci quaternae liberae, crassae, subglobosae, 0.4 mm altae et latae. Fructus ignotus.
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  • 81
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    Phylogenetic Systematics of the Polypodiaceae (Filicales) (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.525 (1983) nr.1 p.321
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    Publication Date: 2015-05-08
    Description: In his introductory statements to 'The Symposium on the Phylogeny and Classification of the Filicopsida' which was held in London, 1972, HOLTTUM, when dealing with 'dubious groups of relationships which would particularly repay investigation', mentioned the Polypodiaceae first (HOLTTUM, 1973: 6). Talking about Polypodiaceae the present authors deal with the Polypodiaceae sensu stricto only, thus excluding the Cheiropleuriaceae, Dipteridaceae, Grammitidaceae, and also the Loxogrammaceae, taxa which were formerly (or are still) included in the Polypodiaceae sensu lato. As delineated in this way, this almost exclusively pantropical family consists of about 600 species and an indefinite number of genera.
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  • 82
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    Palynology, nomenclature and terminology (1967)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.291 (1967) nr.1 p.15
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    Publication Date: 2015-05-08
    Description: Some of the basic concepts common to plant taxonomy, palaeobotany and palynology are discussed such as “taxon”, “taxonomic categories”, “genus and species concepts”, as well as “organ and form genera”. The development of the specifically palaeobotanical and palynological concepts of organ and form genera is briefly treated in the light of the shaping of palaeobotanical thought and methods since Adolphe Brongniart. The need for a single category of an artificial nature (i.e., form genus) is acknowledged; the need for a second category of such nature (i.e., organ genus) is questioned. The general guide lines for good palynological practice given by Faegri et al. (1950) are recommended for future use and are reprinted as an appendix to this paper.
    Repository Name: National Museum of Natural History, Netherlands
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  • 83
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    A new species of Coussapoa (Cecropiaceae) from Peru (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.521 (1983) nr.1 p.305
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    Publication Date: 2015-05-08
    Description: The new species Coussapoa manuënsis C.C. Berg is described.
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  • 84
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    Wood anatomy of the genus Euplassa and its relation to other Proteaceae of the Guianas and Brazil (1966)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.233 (1966) nr.1 p.117
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    Publication Date: 2015-05-08
    Description: Three genera of the Proteaceae belonging to the tribe Grevilleeae occur in the Guianas and Brazil: Roupala, Panopsis, and Euplassa. The microscopical wood structure of one of these genera, Euplassa, has not been described before. Anatomically it proves to be nearly identical with Panopsis which it also resembles in general properties. Roupala differs in several respects. Within the genera differences are not fundamental and chiefly a matter of numbers and dimensions. A key to the genera is given. The relation of these three genera with the two other members of the tribe in South America, Orites and Gevuina, is discussed.
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  • 85
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    Chromosome studies on European species of the genera Aneura and Riccardia (Hepaticae) (1981)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.491 (1981) nr.1 p.19
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    Publication Date: 2015-05-08
    Description: Until recently relatively little attention has been paid to the study of chromosomes in liverworts. The first substantial contributions were made by Heitz (1927, 1928) and Lorbeer (1934). In the second half of this century chromosome studies on liverworts were mainly carried out in Europe (e.g. Fritsch 1972; Newton 1977, 1979) and Japan (e.g. Tatuno 1959; Segawa 1965a, b, c; Inoue 1968). Inoue (in Koponen 1979) reports that until now 28% of all bryophyte species in Japan have been investigated as to their chromosome complement. A comprehensive, but rather outdated, survey of chromosome numbers in Hepaticae and Anthocerotae was given by Berrie (1960). Work on a new, updated survey is now underway (Fritsch, in prep.). In the present article results are presented of a cytotaxonomic investigation of European species of the genera Aneura and Riccardia (Aneuraceae). Most specimens were gathered in the Netherlands, but some chromosome counts based on French and German plants are also included.
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  • 86
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    Expeditions and other exploration (1982)
    In:  Flora Malesiana Bulletin (0071-5778) vol.35 (1982) nr.1 p.3727
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    Publication Date: 2015-04-20
    Description: During 1981 the Botanical Survey of India had again collections made. We list them in the same manner as on pages 3559-3560. In Andaman & Nicobar Is.: Great Nicobar, 300 specimens. In Andhra Pradesh: Anantagiri, Endrika Hills, Ganganaju-medugula, Paderu, 1590. In Arunachal Pradesh: Ganganagar, Hapoli, Naharlagan, Namdapha Biosphere Reserve of Tirap Distr., Tamer Road, Tiruli of Subansiri Distr., Ziro, 1054. In West Bengal: areas of Jalpaiguri, Bankura and Midnapur Districts, places of Bangaon, Tantulia and Basirhat of 24-Parganas Districts, Jaldapara Reserve, Totopara, &c., 2240. In Gujrat: Lalpur and vicinity, 1090. In Karnataka: vicinity of S. Karnataka River-Mulla Periyar and catchment areas, 500. In Kerala: Alleppey, Anathode, Cannanore, Devicolam, Kakki, Kasargod, Kokharjam, Munnar Peermade, Muzhiyar, Pachakanam, Pamba Dam areas, Peruvanzuzhi, Ponnambala Medu, Sabarigiri, 4150. In Madhya Pradesh; areas of Panna Distr., 800. In Maharashtra: Bhimsankar, Janar, Purandar, 985. In Meghalaya: Cherrapunjee, Nongapoh, Sunnapahar of Khasi Hills, Jowai, Jorain of Saintea Hills, Tura of Garo Hills Distr., 3500. In Nagaland: areas of Mekokchung, Tuensang, Wokha, Zunbebato Districts, 500. In Rajasthan: Jaisalmer and areas of Barmer Distr., 1000. In Sikkim: Burtuk Busty, Chakung, Changu, Chuten, Enchy Monastery, below Honuman Top, Jorethang, Lower Bustak, Ranipal, Reumtek, Sang Ratepani, Sinchey, Singtham East, Soren, Suntale forests, Tadong, 4800. In Tamil-Nadu: Kannayakumari, Sethur Hills, Srivilliputhur R.F., 2090. In Uttar Pradesh: Agra-Khal, Ballaieri, Chamoli Chakrata, Dudhwa Nat. Park, Govana, Khan-Khaliadha, Mussoorie, Pam Vali-Kantha, Panwali, Parbagi, Rajkhark, Saharshradhara, 2500.
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  • 87
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    Reviews (1966)
    In:  Flora Malesiana Bulletin (0071-5778) vol.21 (1966) nr.1 p.1436
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    Publication Date: 2015-06-05
    Description: *Burkill, I.H.: Chapters on the history of botany in India, 1965, xi + 245 pp., 4 portr., 2 maps. Manager of Publications, Government of India Press, Delhi 8. Sh. 12/6, or $ 1.98. It was not necessary to mention that Burkill began compiling this book at the age of 81 to finish it at 93, for, although the last two chapters are miscellaneous in contents, it could as well have been written by a man thirty years younger. Everybody will regret that the book ends at the time Burkill’s own contributions to Indian botany began, notably about 1900. As for the period covered, and that is from the earliest beginnings, the book is a rich store of information. It was published in chanters in the Journal of the Bombay Natural History Society 4 and has now, after considerable revision by the author, been brought out by the Botanical Survey of India, preceded by an Introduction by Father H. Santapau, the Director, who therein put Burkill’s considerable merits for Indian botany on record.
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  • 88
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    Dates of publication and bibliographical notes (1969)
    In:  Flora Malesiana Bulletin (0071-5778) vol.24 (1969) nr.1 p.1801
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    Publication Date: 2015-04-20
    Description: Roxburgh, W., Plants of Coromandel, etc. Add (to Fl.Mal. I, 4, 1954, p. CLXXI): cf. D. Wood, Not. R.Bot.Gard.Edinb. 29 (1969) 211-212.
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  • 89
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    Notes on collecting Impatiens (Balsaminaceae) (1980)
    In:  Flora Malesiana Bulletin (0071-5778) vol.33 (1980) nr.1 p.3435
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    Publication Date: 2015-04-20
    Description: Because of their fleshy nature, thin leaves and membranous sepals and petals, Impatiens tend to make particularly poor herbarium specimens. If dried while still attached to the leafy part of the plant the flowers generally become badly crumpled and brittle. In such a state their more important characters become unrecognisable, and it is rarely possible to restore them to any useful degree. The leaves may also become badly crushed especially if they are not pressed absolutely flat. The collectors’ time may thus be completely wasted.
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  • 90
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    The similarity of Lophopyxis and Gouania (1966)
    In:  Flora Malesiana Bulletin (0071-5778) vol.21 (1966) nr.1 p.1426
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    Publication Date: 2015-04-20
    Description: The affinity of the Malesian genus Lophopyxis has a checkered history, a survey of which was given by L.B. Holthuis & H.J. Lam, in Blumea 5 (1942) 205-208, fig. 7. It has been referred to Flacourtiaceae, Icacinaceae, Euphorbiaceae, Olacaceae, and Saxifragaceae. Hitherto no attention was paid to the similarity with Gouania in the Rhamnaceae, which it resembles in toothed leaves, presence of stipules, panicled spike-like inflorescences, and the occurrence of tendrils in these.
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  • 91
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    Progress in Malesian botany (1969)
    In:  Flora Malesiana Bulletin (0071-5778) vol.24 (1969) nr.1 p.1780
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    Publication Date: 2015-06-05
    Description: Dr. B.O. van Zanten, Groningen, will soon finish the revision of Malesian species of Racopilum and Powellia (Racopilaceae). Mr. J.H. Hilbrands has in 1968/69 worked on the species of the genus Papillaria of Malesia and adjacent countries (at Groningen, under supervision of Dr. van Zanten).
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  • 92
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    The numbering of Sarawak Forest Department collections (1966)
    In:  Flora Malesiana Bulletin (0071-5778) vol.21 (1966) nr.1 p.1432
    Details
    Publication Date: 2015-04-20
    Description: Taxonomists working with material collected by the Sarawak Forest Department have often been hard put to decide how to quote numbers. Is the departmental series number preceeded by a letter S, or an F, or would it be best to quote only the collector and the number? I have tried to unravel the history of the Sarawak Forest Department herbarium number series in order to provide a guide to unequivocal citation. This has not been easy, as all collecting books previous to 1951 have disappeared, apparently during the second world war; many of the herbarium collections are now missing at Kuching and Kepong, where most were distributed, for the same reasons, though there seem also to have been large gaps in the series where numbers were never used. What has eventually been brought to light has been a masterpiece of confusion only vied with in complexity by its Sarawakian forbear, the remarkable numbering, or rather lettering, system of Haviland (explained in Kew Bull. 1907, 197— 198).
    Repository Name: National Museum of Natural History, Netherlands
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    Domatia (1965)
    In:  Flora Malesiana Bulletin (0071-5778) vol.20 (1965) nr.1 p.1272
    Details
    Publication Date: 2015-04-20
    Description: These small structures in nerve axils at the underside of leaves have given food to various theories and have been nonetheless in phytographic and taxonomic neglect almost from the beginning. That was in 1887, when the Swede A.N. Lundstroem published an extensive paper, in which he explained domatia as structures intended to accommodate mites – hence the word acarodomatia – which latter would in turn benefit the plant by cleansing the leaves from fungus spores. Lundstroem arrived at this hypothesis on the strength of ideas current in that time, about the existence of symbiotic relations between ants and plants; it was in the heydays of teleology. A closer investigation left little of the illusions about mutual benefit between ants and plants, but such critical interest was never focused on the supposed relation between mites and plants. Recently I could grow a few domatia-bearing species under acari-free conditions; the plants with their domatia did as well as in the open. Yet it is hard to prove that Lundstroem was wrong, but a combination of the experiment, the wellknown fact that domatia are inhabited by acari as often as not, and the origin of the hypothesis make if very unlikely that mites will creep into domatia for other reasons than a natural preference for shelter in small holes. All other (physiological) explanations are unconvincing, too, and so for the time being an explanation is lacking – provided that such an explanation would be necessary.
    Repository Name: National Museum of Natural History, Netherlands
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    The spirits of Bali (1983)
    In:  Flora Malesiana Bulletin (0071-5778) vol.36 (1983) nr.1 p.3920
    Details
    Publication Date: 2015-04-20
    Description: IUCN, says the paper Categories, Objectives and Criteria for Protected Areas, ”is dedicated to the wise use of the Earth’s natural resources and to the maintenance of the Planet’s natural diversity.” What to think of the sequence? Use first, maintain second? And this comes from the International Union for the Conservation of Nature and Natural Resources? ”The World National Parks Congress, taking place in Bali, Indonesia, October 11-22, 1982, will provide case studies from around the world to illustrate how the various categories of protected areas are meeting the needs of countries of all economic, social, cultural, and political backgrounds,” writes J.A. McNeely, the secretary of the Commission on National Parks and Protected Areas, in a special issue of the Swedish journal Ambio (11: 237. 1982). ”No longer just playgrounds for vacationers and means for conserving natural heritage, protected areas have become an inseparable part of the modern human ecosystem.”
    Repository Name: National Museum of Natural History, Netherlands
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    Printed and Mimeographed Issues Obtainable from Flora Malesiana Foundation, Rijksherbarium, Leiden (1967)
    In:  Flora Malesiana Bulletin (0071-5778) vol.22 (1967) nr.1 p.1665
    Details
    Publication Date: 2015-06-05
    Description: Index to the Enumeration of the Orchidaceae of Sumatra, by J.J. Smith. At the Rijksherbarium there was a handwritten copy compiled by the late Dr. J.J. Smith of his important enumeration of Sumatran Orchids, published in Fedde, Repertorium 32 (1933) 130-386, which was obviously for reasons of economy not printed. The author left a note to the Librarian of the Rijksherbarium saying that it is indispensable for consulting this work, as many orchid names were here reduced to synonymy for the first time. This is now available for orchidologists and libraries in stencilled form in the same format as the Enumeration, with the Library of the Rijksherbarium, Schelpenkade 6, Leyden, Holland.
    Repository Name: National Museum of Natural History, Netherlands
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    Personal news (1980)
    In:  Flora Malesiana Bulletin (0071-5778) vol.33 (1980) nr.1 p.3374
    Details
    Publication Date: 2015-06-05
    Description: Dr. M.M.J. van Balgooy and his companions on the Celebes Expedition, Dr. E. Hennipman, Mr. G.J. de Joncheere and Dr. E.F. de Vogel left Leiden on 5 April 1979, visited the SING and BO-Herbaria on the way. In Celebes visit was paid to Hasanudin University at Ujung Pandang (olim Makassar), in Bali to the Botanical Garden at Bedugul. In the course of August they returned to Holland. See also Exploration. The Botanical Survey of India kindly sent the following list of changes: D.K. Banerjee: to the Industrial Section of the Indian Museum at Calcutta; N. Bhargava: to the Northern Circle, Dehra Dun; U.C. Bhattacharyya: Deputy Director, Northern Circle, Dehra Dun; B.N. Chakraborty: Assistant curator, Industrial Section, Indian Museum, Calcutta; U. Chatterjee: Botanist, Eastern Circle, Shillong; Mrs. Dr. S.J. Das: Botanist, Eastern Circle, Shillong; P.K. Hajra: to HQ, Howrah; B. Krishna: to HQ, Howrah; Ram Lall: Botanist, Central Circle, Allahabad; C.L. Malhotra: to Northern Circle, Dehra Dun; P.C. Pant: to Northern Circle, Dehra Dun; B.B. Pramanick: Botanist, CAL-Herbarium, Howrah; M.K.V. Rao: to Andaman Circle, Port Blair; Dr. G.P. Roy: to Central Circle, Allahabad; B.D. Sharma: Deputy Director, Western Circle, Poona; Dr. R.C. Srivastava: Systematic Botanist, Eastern Circle, Shillong; C.R. Tarafder: Botanist, CAL-Herbarium, Howrah. Proficiat to all!
    Repository Name: National Museum of Natural History, Netherlands
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    Personal news (1965)
    In:  Flora Malesiana Bulletin (0071-5778) vol.20 (1965) nr.1 p.1239
    Details
    Publication Date: 2015-06-05
    Description: Dr. P. S. Ashton of Kuching went on leave at the end of September 1965, to return mid-1966. In Europe he hopes to consult some Herbaria for type materials of Dipterocarpaceae. Mr. M. M. J. van Balgooy of the Rijksherbarium travelled in New Guinea, Australia, Lord Howe Island, and Java, from 30 March to 14 August 1965.
    Repository Name: National Museum of Natural History, Netherlands
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    Expeditions and other exploration (1967)
    In:  Flora Malesiana Bulletin (0071-5778) vol.22 (1967) nr.1 p.1534
    Details
    Publication Date: 2015-06-05
    Description: Field work on the Ceylon Flora. Trimen’s ”Handbook” on the flora of Ceylon, published between 1893-1900, is one of the finest floras ever written of a tropical area. It is a five volume descriptive work that served very adequately for many years. It is now not only out-of-date, but completely unobtainable. The Smithsonian Institution, in cooperation with the University of Ceylon and the Royal Botanic Gardens, Peradeniya, is initiating a project to bring up to date and republish the Trimen ”Handbook” by providing an opportunity for field work in Ceylon.
    Repository Name: National Museum of Natural History, Netherlands
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    Bibliography (1982)
    In:  Flora Malesiana Bulletin (0071-5778) vol.35 (1982) nr.1 p.3802
    Details
    Publication Date: 2015-04-20
    Description: The entries have been split into five categories: a) Algae — b) Fungi & Lichens — c) Bryophytes — d) Pteridophytes — e) Spermatophytes & General subjects. — Books have been marked with an asterisk. The SEM-observation of plant material normally requires dehydrated, dry specimens coated with carbon or metal. Unfortunately, the standard drying methods (including the critical-point-drying-technique) often cause shrinking and deformation of the specimen surface; therefore, SEMstudies on plant ontogeny are rather difficult, material- and time-consuming. Experiments using deep-frozen specimens have been carried out in England and in the USA, but have proved not satisfying.
    Repository Name: National Museum of Natural History, Netherlands
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    Personal news (1983)
    In:  Flora Malesiana Bulletin (0071-5778) vol.36 (1983) nr.1 p.3876
    Details
    Publication Date: 2015-06-05
    Description: Mrs. Delia D. Adefuin, Museum Research Assistant, Manila, is pursuing her M.S. in Botany degree. She is currently the Secretary of the Fern Society of the Philippines. She is working on the Fern Flora of Metro Manila and is preparing the manuscript of a pictorial encyclopedia which will include descriptions of species and horticultural recommendations. Miss Barbro Axelius (S) collected and studied Xanthophytum and Lerchea (Rubiaceae) in Sarawak, Kalimantan and Sumatra, August 1982- February 1983.
    Repository Name: National Museum of Natural History, Netherlands
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