ALBERT

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.

Description: https://www.researchgate.net/publication/230891291_The_Orbital_Theory_of_Pleistocene_Climate_Support_frim_a_Revised_Chronology_of_the_Marine_d18O_Record

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.

Description: Verslag van een doctoraal onderwerp bij de Vakgroep Systematische Dierkunde en Evolutiebiologie van de Rijksuniversiteit Leiden, september 1976

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.

Description: New taxa and combinations are published here in anticipation of the revision of the Rutaceae-Pilocarpinae to be published in the near future (thesis, and in Flora Neotropica). Two new combinations of species excluded from subtribe Pilocarpinae are added.

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.

Description: Protium Pullei Swart n.sp. Arbor circ. 12 m alta. Ramuli robusti 4 mm diam. teretes glabri fusci lenticellis oblongis ferrugineis muniti. Folia trifoliolata 17 (16—21) cm longa glabra, petiolis robustis semiteretibus 4.5 cm longis basi incrassatis demum transverse rimosis, petiolulis semiteretibus robustis utrinque subincrassatis 1 cm longis sed terminalibus 2.25 cm longis, foliolis oblongo-ellipticis II (7.5—13) cm longis 5 (3.75—5.5) cm latis, apice abruptius acuminatis, acumine sublineari 8 (5—10) mm longo 2.5 (2—3) mm lato, basi cuneata, margine integro, coriaceis utrinque nitidis laevibus supra glaucescentis infra viridis, nervis secundariis utrinque II, nervis prim. et sec. utrinque prominentibus. Inflorescendae axillares breves pauce ramosae pauciflorae circ. 1 cm longae. Ramuli teretes striati cum pedicellis teretibus flore aequilongis bracteis bracteolisque triangularibus obtusis densiuscule puberulis. Flores 5-meri glabri. Calyx cupuliformis lobis oblongo-triangularibus acutis tubo aequilongis. Petala valvata oblongo-triangularia acuto apiculo inflexo carnosa. Stamina 10. Discus 10-lobis glaber. Pistillum glabrum, ovario late ovoideo stigmate 5-lobo coronato. Type: Maguire 24784 in herb. NY, 17 Sept. 1944, Suriname, Tafelberg, mixed transition high-low bush, 5 km S.W. of Savanna I.

Description: The author reports the discovery of the moss Rhodobryum roseum (Hedw.) Limpr. in the municipality of Wijlre in the extreme south of the Dutch province of Limburg. This is the first certain find from this area. See distribution map – fig. 2. Rhodobryum occurs on a steep part with a grade of about 30° of a north-facing hillside which borders the valley of the rivulet Geul. This steep part originated by specific land use for several centuries and it forms a part of a pasture which lies below it and is incidentally grazed by cattle. Above the locality a forest stretches towards the hill top. The habitat of Rhodobryum roseum receives no direct sunshine and the microclimatological situation can be defined as open shade. The air humidity is constantly rather high. The subsoil consists of calcareous deposits of Upper-Senone age. The pH measured at a depth of ca. 5 cm. in the soil is about 7-8. The altitude of the locality is about 125 m. above sea level.

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.

Description: Op 27 mei 1976 overleed Dr. P.A. Florsohütz op de leeftijd van 53 jaar. Het bericht van zijn overlijden kwam zelfs voor diegenen die gedurende de laatste weken van zijn leven regelmatig kontakt met hem hadden onverwacht. Tijdens de middelbare-sohooltijd kwam zijn interesse in de biologie al duidelijk naar voren. Zowel plant als dier had zijn belangstelling. Na het behalen van het diploma HBS liet Florsohütz zich als student in de biologie aan onze universiteit in schrijven en legde in 1945 bet kandidaatsexamen af. Spoedig daama werd hij kandidaat-assistent bij Prof. Pulle, hoogleraar-directeur van het toenmalige Botanisch Museum en Herbarium. Hét doctoraal-examen werd in 1949 afgelegd.

Description: Floristische und soziologische Beobachtungen über die Flechtenvegetation von Isla Persa, einer Gletscherinsel in der SO-Schweiz (Berainagebiet), in Höhe von 2450-2850 m, werden beschrieben. Die Artenliste nennt 156 Arten. Die interessantesten Funde werden kurz besprochen. Deutlich höher als bekannt aus der Literatur wurden gefunden: Cladonia cyanipes auf 2550 m. Coniocybe furfuracea auf 2650 m. Leprocaulon microscopicum auf 2500 m. Weiter werden einige Flechtengesellschaften auf Isla Persa kurz besprochen: a) epiphytisch: Parmeliopsidetum ambiguae Hilitzer 1925 b) epilithisch: Umbilicarietum cylindricae Frey 1923 Umbilicarietum microphyllae Frey 1923 Sporastatietum testudineae Frey 1922 Sporastatietum polysporae Frey 1922 Ramalinetum capitatae Frey 1923 Umbilicarietum ruebelianae Frey 1925 Dimelaenetum oreinae Frey 1923 Umbilicarietum deustae Frey 1933 c) terrestrisch: Stereocauletum alpini Frey 1937 ? Cladonietum alpestris Frey 1937 Thamnolietum vermicularis Gams 1927 Lecideetum demissae Frey 1923

Description: Zeer geachte Toehoorderessen en Toehoorders, Bij het beginnen van een wetenschappelijk onderzoek zal meestal degene die zich daaraan gezet heeft, allereerst het antwoord dienen te vinden op enkele fundamentele vragen. Zijn deze primaire vragen beantwoord, dan is de weg gebaand voor verder onderzoek en voor algemene theoretische beschouwingen. Deze fundamentele vragen zijn echter niet voor elke onderzoeker en ook niet voor elk onderzoek in een zelfde tak van wetenschap steeds gelijk. Dit hangt af van vele factoren, zoals: uiteindelijk doel van de studie, aard van het materiaal, geaardheid vooral van de onderzoeker, enz. Vandaag wil ik met U behandelen de hoofdvragen, die zich bij mij, voor de aan mij toevertrouwde onderdelen van de botanie steeds op de voorgrond plaatsen en de wijze waarop ik die beantwoorden pleeg te interpreteren voor het verdere onderzoek. Hierdoor zal ik tevens de gelegenheid hebben, om aan te stippen in welke richting wij op het gebied van de bijzondere plantkunde en de plantengeografie nog onderzoekingen kunnen verrichten, die ons inzicht in het geheel aanmerkelijk kunnen verruimen. Voor ik met mijn eigenlijke onderwerp begin, moet ik toch iets zeggen over wat „bijzondere plantkunde” is. Ik zal er niet te veel over uitweiden, daar, zoals Koningsberger en Reinders in het voorwoord van het eerste deel van het Leerboek der Algemeene Plantkunde terecht opmerken, de scheiding tussen „algemene” en „bijzondere” plantkunde uiteraard onscherp is. Volgens de letter van de gebruikelijke terminologie zou eigenlijk alles wat niet „algemeen” is thuis horen onder de bijzondere plantkunde. Zover wil ik niet gaan, want dat zou mijn taak wel heel omvangrijk maken en afgezien van het feit dat het buiten mijn kunnen zou komen te vallen, denk ik ook dat mijn collega voor de algemene plantkunde ernstige bezwaren zou maken indien ik datgene van de plantenphysiologie dat zeker niet algemeen is te noemen, voor mijzelf zou gaan opeisen. Ik wil daarom beginnen de physiologie, hoe bijzonder deze hier en daar ook moge zijn, maar onmiddellijk in zijn geheel bij de algemene plantkunde te plaatsen. Voor de rest zou ik mijn bovengenoemde definitie, dus „bijzonder” is alles wat niet „algemeen” is, in grote trekken willen volgen, met dien verstande dat ik mij natuurlijk wil houden aan de veelal gebruikelijke taakverdeling, zodat b.v. de „algemene” morphologie en anatomie van de Angiospermen, die in feite in het plantenrijk als geheel, „bijzonder” is, bij de „algemene plantkunde” wordt ondergebracht. De speciale en vergelijkende morphologie van deze groep reken ik echter zeer zeker tot de mij toegewezen tak van wetenschap. Ook de afgrenzing met de genetica is niet scherp. Indien men elk onderzoek waarbij niet uitsluitend op het phaenotype maar ook op het genotype gelet wordt, tot de genetica wil rekenen, dan zal de betrekkelijk jonge experimentele plantensystematiek of biosystematiek geen deel kunnen uitmaken van de bijzondere plantkunde. De genetici zullen het mij wel niet euvel duiden, dat ik ook deze tak van onderzoek laat staan bij de bijzondere plantkunde, waaruit zij is voortgekomen en waarvoor zij van zoveel betekenis is.

Description: Xylopia surinamensis R. E. Fr. n. sp. — Ramuli novelli dense aureo-ferrugineo-sericei, vetustiores plus minus glabrescentes et cortice densissime lenticellifero punctato vestiti; internodia 0,5—1 cm longa. Foliorum petiolus sericeo-tomentosus, 5—7 mm longus; lamina rigida, anguste lanceolata, basi rotundato-truncata, apicem versus sensim longeque attenuata, summo apice obtusa, supra ab initio glaberrima sed densissime verruculoso-punctata, subtus dense argenteosericea, 8—11 cm longa et 2—2,5 cm lata; costa supra valde impressa glaberrima, subtus prominens teres; nervi secundarii cum venulis vix conspicui. Flores in inflorescentiis densis nonnulli; bracteae numerosae, late ovatae, 1,5—2 mm longae. Sepala fere omnino coalita, calycem cupuliformem semiglobosum argenteo-sericeum 2—3 mm altum et 5—6 mm latum formantia. Petala exteriora linearia obtusa, extus argenteo-sericea, circ. 13 mm longa et 2 mm lata, prope basin subito dilatata; interiora linearia, acuta, quadrangulari-prismatica, utrinque cinereo-puberula, 12 mm longa et 1—1,2 mm crassa. Staminum filamenta 0,2 mm longa; antherae circ. 1 mm longae, locellatae, connectivi discus glaber; stamina exteriora plus minus sterilia. Pistilla numerosa (fere 30); ovaria dense sericea, circ. 1 mm longa, styli 1 mm et stigmata 1 mm longa. (Fructus ignotus). Suriname: Boschreserve, Sectio O (florifera Junio 1944. — Wood Herbarium Surinam No. 139). Typus speciei in Herb. Utrecht).

Description: The African members of the Conocephaloideae are revised. Musanga comprises two species: M. cecropioides and M. leo-errerae. In Myrianthus seven species are recognized: M. arboreus, M. holstii, M. preussii (with ssp. preussii and ssp. seretii), M. libericus, M. serratus (with var. serratus and var. letestui), and M. cuneifolius. M. serratus var. letestui is described as new.

Description: Oil bodies 7-12 in upper leaf cells, 10-20 in elongated basal leaf cells; globose to ellipsoid, 3-7(-10)x3-5 μm; colourless, coarsely segmented, consisting of c. 15-30 aggregated droplets (Colombia, Boyacá, páramos NW of Belén, Cabeceras Q. El Toral, 3765 m, Cleef 2292e; Ecuador, páramos de El Angel, 17 km. S. of Tulcán, 3350 m, Gradstein, Lanier & Weber s.n.). The presence of segmented oil bodies in Colura patagonica is remarkable because previous studies of living Colura (from Japan) reported homogeneous oil bodies (cf. Schuster & Hattori 1964; Inoue 1974).

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.

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.

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.

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).

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.

Description: Dames en Heren, In een universitair blad kwam onlangs de mededeling voor, dat aan een hoogleraar, die zich in dezelfde moeilijkheid bevindt als ik, nl. dat hij in de loop van deze cursus 70 jaar is geworden, een afscheidscollege zou worden aangeboden. Ik vond dat een sympathiek plan. Als men met college geven, ondanks de daaraan verbonden bezwaren, de 70-jarige leeftijd heeft gehaald, is het werkelijk geen overbodige weelde dat een ander de taak voor deze laatste keer van hem overneemt.

Description: On 27 May 1976 Peter Arnold Florschütz, bryologist, died at the age of only 53 at De Bilt, Netherlands. Only six weeks prior he had been hospitalized as a result of kidney cancer. His untimely death came as totally unexpected and shocking news to his friends and colleagues all over the world, many of whom had seen him in excellent health the year before at the Botanical Congress in Leningrad. He was a lector of botany and curator of the cryptogamic herbarium at the Institute for Systematic Botany and acting director of the Botanical Gardens of the University of Utrecht, the same institution where he had studied biology from 1941 to 1949. In his professional capacity he had held positions at the Institute for Systematic Botany from 1946 until 1949 as student-assistant and from 1949 on as staff member. Initially under the directorship of his teacher in plant systematics Professor A. A. Pulle, and from 1948 until 1970 under Professor J. Lanjouw’s leadership, the “Flora of Suriname” was being tackled by the staff of the institute. Thus, as a young graduate student, Florschütz was assigned the revision of the mosses of Suriname; a comprehensive and difficult task, because in those post-war years there was a vacuum in European exotic bryology. The heydays, with Herzog in Germany, Brotherus in Scandinavia, Dixon in Great Britain and Thériot and Camus in France were over. At the beginning, Florschütz was entirely dependent on Brotherus’ treatment of the world’s mosses in Engler and Prantl, “Die natürlichen Pflanzenfamilien.” In those years he had run over the leaves of this book for weeks on end in a typical posture, like he used to tell: folded in a chair, book on his lap.

Description: It is the fate of most historic personalities that in the course of time their work sinks almost completely into oblivion, and that the few lingering reminiscences of their achievements are transmitted to later generations in the form of second- or third-hand quotations, usually mixed with more or less anecdotic episodes from their life. It must be admitted that LINNÉ occupies in this respect a comparatively favourable position, for most educated people will remember that they heard in their school days of at least three things which are credited to him, in the first place that he produced a classification of the plant kingdom which is based on the number of stamens and carpels, the so-called sexual system, in the second place that he was the first who consistently applied the binomial nomenclature, i.e. the custom to designate an organism by a combination of two names, viz. a generic and a specific one, and thirdly that he was the originator of the pronouncement “Species to numeramus quot diversae formae in principio sunt creatae” (We count so many species as in the beginning different forms were created). Other achievements of LINNÉ may have been of greater importance, but it are these three things for which he is most generally remembered. The pronouncement quoted above, which means that the groups of individuals which form the species are descended from ancestors that owed their origin to an act of creation, derives its historic importance from the part it played in the debates on the theory of evolution. As it implies that the species are constant, it became the watchword of the antagonists. It is, however, rather strange that this pronouncement has so often been quoted, for it is found in LINNÉ’s earlier works only, and was in the later ones replaced by another statement that flatly denies the constancy of the species.

Description: Campylopus introflexus, a new neophyte in western Europe, occurs throughout the Netherlands. After its first appearance in 1961, it is now a common moss. It grows as a pioneer on acid, well-drained places. The differences with C. pilifer are summarized. The occurrence of the latter in the Netherlands could not be affirmed.

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.

Description: Campylopus galapagensis J.-P. Frahm & Sipman spec. nov. is described. It is closely related to C. pilifer Brid., from which it differs mainly by the presence of substereids in the ventral layer of the costa. It is endemic on the Galapagos Islands, where it occurs frequently from sea level to the highest summits at 1500 m.

Description: The first record of Lophozia perssonii for the Netherlands, from an old and deep limestone-quarry near Cadier en Keer, S. Limburg. Sterile L. perssonii grows here as a pioneer on shaded, calcareous tufa blocks together with Leiocolea badensis and other bryophytes. The differences with related species are discussed, and a description of the ecology is given.

Description: Tortula grandiretis Broth., differing from T. muralis Hedw. mainly in the larger, quite smooth lamina cells, is reported from three localities in the SW-Netherlands, where it occurred on open, sandy or clayey, brackish soil on recently enclosed mud flats or salt-marshes. It is also reported from one locality in Turkey. It was formerly known only from Turkestan (U.S.S.R.).

Description: Erismadelphus Mildbr. is remarkable because it is the only African genus of the Vochysiaceae, a family represented in tropical America by no less than 5 genera and 180 species. Erismadelphus was discovered in 1913 by Prof. J. MILDBREAD and has hitherto been represented by only one species: E. exsul Mildbr. Recent examination of the African collections has, however, revealed the existence of two other taxa. Unfortunately the type of E. exsul (Mildbraed s.n. from Elon, French Cameroons) was destroyed at Berlin during the 1939-45 war and no duplicates or cotypes are known to exist. In response to an enquiry Prof. MILDBREAD, to whom we are very grateful, informed one of us that in his view Corbisier 1362 from Eala in Belgian Congo was identical with his original type. Prof. MILDBRAED and KEAY have, in fact, together examined Corbisier 1362 in the Herbarium of the Jardin Botanique de l’Etat at Bruxelles through the courtesy of Prof. ROBYNS. Duplicates of Corbisier 1362 are at Kew and Paris, they agree in every respect with MILDBRAED’s original description and figure and we therefore propose that this specimen be adopted as the neotype (lectotype).

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.

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.

Description: The structure of the wood of the genera Castilla, Helicostylis, Maquira, Naucleopsis, Olmedia, Perebea and Pseudolmedia, considered to belong in the Olmedieae (cf. Berg 1972) is described. The diversity in anatomical structure between the genera is small, and it is hard to distinguish Maquira, Perebea and Pseudolmedia from each other. Castilla can be recognized by its thinwalled and wide-lumined fibres, Helicostylis by its parenchyma distribution, Naucleopsis (usually) by its more numerous vessels with a smaller diameter. A more marked difference is shown by the monotypic genus Olmedia with apotracheal banded parenchyma instead of the paratracheal aliform to confluent-banded parenchyma of the other genera. Septate fibres, which are characteristic for the other genera – some species of Helicostylis excepted – are nearly completely absent in Olmedia. This structural difference is considered as an argument in favour of the exclusion of Olmedia from the tribe Olmedieae (Berg 1977).

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.

Description: The subject of this study are soil samples taken in the “Makkumer Waard”, a wide expanse of low-lying land, which follows the Frisian coast. Stratigraphical and palynological investigations showed that in the beginning of the Atlanticum the area lay below the level of the sea, but that gradually the influence of the sea decreased and peat formation became possible. From the transition from marine deposits to Sphagnum peat (— 4,55 m to — 3,50 m) we must conclude that there has been a temporary standstill in the transgression, or even a regression, in the middle of the Atlanticum. Towards the end of the Atlantic period a sudden marine transgression followed, which deposited a layer of sand and clay on the Sphagnum peat (— 3,50 m to — 3,30 m). Shortly before the beginning of the Subboreal (which probably sets in at — 3,10 m) an important regression began and an Eriophorum peat was formed directly on the clay (—3,30 m to —3.00 m). It is probable that the peat formation went on in the Subatlanticum, but the younger Sphagnum peat is no longer present, for a third marine transgression, which lead to the formation of the “Zuiderzee”, washed away the peat and deposited the younger sea sand. The data obtained from the Makkum profile proved to agree very well with the results of other investigators who worked in the area round the North-sea.

Description: What KIAERSK wrote in 1893 in the preface of his “Enumeratio Myrtacearum Brasiliensium” is still largely valid. It is often most difficult to define a species belonging to this family, not only because, in the absence of ripe seeds, the genus is not easily ascertainable, but also because of the strong variability shown by the vegetative characters. Thanks to the examination of the rich Guiana material preserved in the herbaria of Genève, Kew, Leiden, New York, Paris and Utrecht, I have usually been able to delimit the species in a satisfactory way; their allocation to a definite genus, however, is often a difficult problem. During the preliminary stage of this investigation, which was interrupted by the war, it was of great advantage to me that I could study the Guiana specimens of the Leiden herbarium. In order to avoid misinterpretations, I have tried to base my conclusions as far as possible on an examination of either the types themselves or of duplicates of the latter. Several of these types, especially those that form part of the earlier collections of Guiana plants, e.g. of the collection Aublet, and of the collections Desfontaines (herb. Florence) and De Candolle (Genève) had never before been reexamined, and BERG, the last monographer of the South American Myrtaceae (in Linnaea XXVII (1855—56), XXIX (1858) and XXX (1861) has either neglected these species or given an, often incorrect, interpretation based on the description alone. For this reason the second part of this paper will be devoted to a short survey of these earlier types. My best thanks are due to the directors of all herbaria mentioned. Moreover, I have to thank the “Van Eedenfonds”, whose financial aid enabled me to pay a visit to Kew and to the British Museum.

Description: The new checklist of Dutch liverworts comprises 126 species, 1 subspecies and 5 varieties. Since 1962 seven liverwort species have been added to the flora: Barbilophozia hatcheri, Calypogeia muellerana, Cephalozia pleniceps, Fossombronia incurva, Haplomitrium hookeri, Lophozia perssonii and Plagiochila porelloides. Of twelve species presumed occurrence in the Netherlands needs verification. Nomenclature follows Grolle’s “Verzeichnis der Lebermoose Europas” (Feddes Repert. 87: 171-279. 1976), except for Isopaches, Leiocolea and Microlejeunea, which are maintained as genera and Phaeoceros carolinianus, Cephalozia lammersiana, Chiloscyphus pallescens, Lophozia silvicola and Lophocolea cuspidata. , which are treated as intraspecific taxa.

Description: In my first paper (1951) a part of the tribe Eupodostemeae was revised, viz. the genera Apinagia, Marathrum, Rhyncholacis, Lophogyne, Monostylis, Jenmaniella, Wettsteiniola and Macarenia. The second part deals with the subfamily Tristichoideae, which comprises the genera Tristicha and Weddellina, and the tribe Mourereae of the subfamily Podostemoideae, which consists of the genera Mourera, Lonchostephus, and Tulasneantha.

Description: The new Amazonian liverwort genus Verdoornianthus is considered to be a specialized derivative of the widespread tropical genus Archilejeunea. Differences are the absence of innovations, the dull, suberect leaves, the tristratose rhizoid pad and the larger size of the lobule of the female bracts in Verdoornianthus. There are two species, V. marsupiifolius (Spruce) comb. nov. (Lejeunea marsupiifolia Spruce) from the upstream part of the Rio Negro and V. griffinii sp. nov. from Manaus.

Description: A survey of the literature in which species of Musci are reported for Colombia, amplified by unpublished identifications of recent collections, indicates a known flora of 750 species. About 600 published names are treated as synonyms. An annotated list of the collectors is also provided, as well as notes on critical localities and itineraries, especially those of Purdie, Lindig and Wallis. Moss collections of Moritz, Wagner and Osculati are not from Colombia. Two new combinations are proposed: Campylopus pittieri Williams var. congestum (Thér.) comb. nov. and C. pittieri var. latilimbatum (Thér.) comb. nov.

Description: Among the material collected by LANJOUW and LINDEMAN during the Suriname Expedition 1948—’49 a specimen of Mabea taquari Aubl. was found whose flowers showed some interesting deviations from the normal structure. In the “Flora of Suriname” vol. II, part 1 (1932), p. 78 LANJOUW states that the female flower of the genus Mabea Aubl. is apetalous and provided with a 5- or 6- partite calyx. In a re-investigation of the specimens preserved in the Utrecht Herbarium this could as a rule be confirmed.

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.

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.

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.

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.

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.

Description: In this first paper on the liverworts of the leeward islands of the Netherlands Antilles, a total of 16 species are being reported; 15 from Curasao (mainly Christoffelberg area) and 2 from Bonaire. All species are drought-tolerant and widespread in the neotropical lowlands. A key to the species and references to descriptions of each species are given as well as short notes on distribution and ecology.

Description: In a recent paper PIERROT (BIZOT, PIERROT & POCS 1974) described the new genus Bizotia based on Paraleucobryum densifolium Thér. (THÉRIOT 1939). However, ROBINSON (1967) already made the presumption that Paraleucobryum densifolium should belong to Campylopus, notably C. argyrocaulon (C.M.) Broth. His conception of C. argyrocaulon was apparently based on MUELLER’s original description (MUELLER 1874) only, which includes a detailed description of the cross section of the costa. We examined part of the type collection of C. argyrocaulon (Wallis s. n., Colombia, NY) but this material, although MUELLER’s description is correct, does not exactly match the type material of Paraleucobryum densifolium (Troll 2144-2145, Colombia, PC-TH). The type material of C. argyrocaulon is identical with one of the paratypes of C. leucognodes (C.M.) Par. (Germain s. n., Bryoth. Levier, Bolivia, NY). ROBINSON also mentions Campylopus pittieri Williams (1908) under the presumed synonymy of C. argyrocaulon. Examination of the type material of the former species (Pittier 1088, Colombia, NY) shows that this species is indeed identical with Paraleucobryum densifolium.

Description: In continuation of de Ruiter’s treatment of Myrianthus and Musanga (Bull. Jard. Bot. Nat. Belg. 46: 471-510.1976), the present paper gives a revision of the African representatives of 17 genera of the Moraceae. The area studied not only consists of the African Continent, but also includes Madagascar, the Comoro Islands, the Mascarenes, the Seychelles, and the Aldabra Islands. Several new combinations are made: Antiaris toxicaria ssp. africana (Engl.) C.C. Berg, A. toxicaría ssp. africana var. usambarensis” (Engl.) C.C. Berg, A. toxicaria ssp. macrophylla (R.Br.) C.C. Berg, A. toxicaría ssp. madagascariensis (H. Perrier) C.C. Berg, A. toxicaria ssp. humbertii (Léandri) C.C. Berg, Broussonetia greveana (Baillon) C.C. Berg, Treculia africana ssp. madagascarica (N.E.Br.) C.C. Berg, and T. africana ssp. madagascarica var. sambiranensis (Léandri) C. C. Berg. Many names are brought into synonymy. Besides revising taxa, the present study aims to fill a gap in our knowledge between Asian Moraceae (studied by Corner, whose studies resulted in a new classification of the family) and the neotropical Moraceae, a subject of study by the present author. Therefore discussions about classification of the family and relationships of African Moraceae with moraceous taxa elsewhere are an essential part of the present paper.

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.

Description: The present paper deals with the wood anatomy of the Blakeeae (Melastomataceae). Generic descriptions of the secondary xylem of Blakea, Topobea, and Huilaea are given and compared with data on 16 genera of the Miconieae. Numerical pattern detection was undertaken. The results confirm our preliminary ideas that Blakea and Topobea do not differ enough to enable the separation of these genera on the basis of their wood anatomy. Within the Miconieae it is not possible to separate the genera. However, some anatomical differences between the two tribes were found. The genus Huilaea seems to belong in the Blakeeae although it also shows similarities with the Miconieae. Wurdack’s suggestion (pers. comm.) that the Blakeeae are closest to the genera Loreya and Bellucia, and perhaps should be merged with the Miconieae, is supported to some degree.

Description: From April 1974 to October 1975 the author conducted field work on the Galápagos Islands for a vegetation study of Santa Cruz and Volcán Alcedo, Isabela. Plants were collected on other islands as well. Thirty-five taxa are new for the archipelago. When determining the material, I found some changes in nomenclature to be necessary. The first set of the collection is in U while a duplicate set will be deposited in CAS. A representative set will be deposited in an Ecuadorian Herbarium. The sequence of the taxa in the Flora of the Galapagos Islands (Wiggins & Porter 1971) is followed.

Description: This year Prof. Dr. F.P. Jonker, Frits as he is known among his friends, will retire from the formal academic life at the State University of Utrecht: a long and busy life of 49 years, devoted to teaching, administration, and scientific research. Looking back on all these years, one realises the important contributions that Jonker has made to botanical science in general and to palaeobotany in particular, both in The Netherlands and abroad, as well as the impact he has exerted on his surroundings, culminating in the vigorous activities of the Laboratory of Palaeobotany and Palynology at Utrecht. To describe Jonker’s life history is indeed to describe the history of his laboratory. To understand the significance of Jonker and the character of the “lab”, we have to trace his life from its very beginnings at the town of Almelo in the eastern Netherlands, where he was born in 1912. His father and mother were teachers and both liked (wild) flowers. Thus both an intellectual and botanical background were already part of his life at a very young age. Soon Jonker joined a group of boy-scouts, where he combined his love for the outdoors with his interest in nature. In high school the biology teacher was Dr. J. Van Beusekom, an Utrecht botanist, who was at the same time scout-master of the scout group. In these formative years, “de Beus” was a decisive factor in influencing Jonker’s career. It was largely because of Van Beusekom that Jonker went to Utrecht University as a student.

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.

Description: El 25 de mayo de 1976 falleció inesperadamente, a la edad de 53 años, Peter Arnold Florschütz, eminente briólogo y profesor de Botánica Sistemática en Utrecht (Holanda). Era bien conocido por sus estudios de los musgos de Surinam. Fue coauter del "Index Muscorum”, miembro de la comisión de la Flora Neotrópica y tesorero del IAPT. Durante sus últimos 10 años estudiaba, junto con la señora Florschütz, los musgos de los Andes colombianos. En 1972 visitó muchas zonas de páramos y selvas andinas, especialmente en los alrededores de Bogotá (Cundinamarca), la Sierra Nevada del Cocuy (Boyacá, Arauca) y el Nevado del Ruiz (Caldas). En 1975 tuvo la oportunidad de visitar nuevamente algunos páramos cercanos a la capital colombiana. Sus colecciones de 1972 y 1975 (con cerca de 1.000 números) se conservan en Bogotá (COL) con duplicados en Utrecht (U).

Description: The new species Coussapoa manuënsis C.C. Berg is described.

Description: Morphology, chemistry, distribution and ecology of 6 species of Cladonia subgenus Cladina (Lichenes) from the Colombian paramos are described: C. arcuata Ahti, C. boliviano Ahti, C. confusa Sant., C. polia Sant., C. rangiferina (L.) Wigg. var. abbayesii Ahti, and C. colombiana spec. Nov. C. bicolor (Mull. Arg.) Ahti is reduced to synonymy under C. polia.

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.

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.

Description: BAKHUIZEN VAN DEN BRINK Jr, R.C., A synoptical key to the genera of the Rubiaceae of Thailand. Thai Forest Bull. (Bot.) 9 (1976) 15-55. Key of the bracketed type, often leading to flowers as well as fruits, with built-in descriptions of c. 6-12 lines; diagnostic characters are marked. Number of genera 68, incl. 3 introductions and 5 genera not recorded but possibly occurring in Thailand (mostly dependent on delimitation); Craib in 1932-34 has 71. Schumann’s system of 1891 is largely upheld, although no subdivision is here given, and some surprising changes in delimitation occur (e.g. in Keenania, Mycetia, Myrioneuron), which means that many new combinations must be floating around on herbarium sheets. Caution is in order where e.g. on p. 49 Mitragyna seems to have a new section Paradina with a supposedly basal placenta, or where Gardenia is authorized L. on p. 35 but authorized L. emend. Bakh.f. on p. 32. A comparison with Thonner’s keys reveals that Bakhuizen’s key works slower. His generic descriptions are true ’mines of information’ – mining requires a lot of backtracking before all characters can be compared. Desirable as it would be to extend a work like this to all Malesia, it would be better to abandon the Backer-way of keying, and instead describe all genera clearly, and prepare a multiple key as worked out by Leenhouts. Some synonyms are given (Notodontia yes, Quiducia and Symphyllarion no), nomina conservanda indicated, no references, no species. Several critical notes are added. — C.E. Ridsdale & M.J.

Description: The South Asia Institute (see note on page 2342) has changed its address in Heidelberg, Germany: now P.O. Box 10 30 66. Work is in progress on the geography – with a botanical inclination – on Nepal, Ceylon, Java, Sumba, Timor, Papua New Guinea, and Stewart Island, New Zealand. New policy of NUFFIC. The two projects executed by the Rijksherbarium for the Netherlands University Foundation For International Cooperation: seedlings in Bogor and Flora of Thailand, have been completed and discontinued respectively. Both were conceived in the early days of NUFFIC, when initiatives of interested parties were welcomed. Election of a socialist government in Holland in 1973 brought a gradual change in policy, towards larger, multidisciplinary projects for the benefit of the poorest, and we were informed that small projects like the above would not be accepted. We will see what the next elections bring, in 1977.

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.

Description: Portraits of botanists who worked on the Ryukyu Islands, 80 in number, most Japanese, a few Americans, were published in the book by S. Hatusima, Flora of the Ryukyus, p. 56-75 (1971). Baas Becking, L. G. M. A meticulous bibliography, of the former Professor of Experimental Botany at Leiden and later Director of the Bogor Botanic Gardens, was prepared by J. Westenberg, 20 p. (North Holland Publishing Company, Amsterdam, 1977).

Description: Now that at the Jakarta Forestry Congress it was announced on the behalf of the Indonesian government that a target area has been set to conserve 5% of the land area, eventually to be increased to 10%, the time has come to indicate how these areas are to be allocated. Botanical arguments are available as a guidance; they are drawn from established sources, including experience from work at the Rijksherbarium. A number of points are here given. 1. In Malesia, it is usually possible, clearly to distinguish between primary forest: rich in species, balanced as an ecosystem, complex, fragile, different from place to place, in which rarity of species prevails, slow in regeneration, irreplaceable within any foreseeable amount of time, and secondary forest: poor in species, an ecosystem in succession, simple, aggressive, consisting of common, widespread species, quick in regeneration, and entirely renewable. From the botanical point of view, secondary forest has no conservation value, only primary forest has.

Description: Brunonia is the title of a journal that will replace the Contributions from Herbarium Australiense (last no. 17, 1976). Subscriptions Aust. $ 4. annual, Herbarium Australiense, P.O. Box 1600, Canberra City, A.C.T. 2601, Australia. Nature Malaysiana, published quarterly by Tropical Press, 64A Jl. Bukit Bintang, Kuala Lumpur, Malaysia, started in July 1976. The price is Mal. $ 2.50 a copy. This first number, size 28 by 20 cm, containing 40 pages of text and some pages of ads, is devoted to ’our natural heritage’. It is full of showy photographs all in colour, with high quality popular texts on snakes, malaria parasites, spiders, wild orchids, mantis, frogs and elephants. Execution is very good. The journal seems aimed at the general educated public, well suited for display in airline offices, dentist’s waiting rooms, the reading table in an embassy, etc. where is surely will make life more pleasant, and set people’s minds in the proper direction.

Description: ASHTON, P.S., Crown characteristics of tropical trees. In Tomlinson & Zimmermann (ed.), Tropical Trees as Living Systems (1978) p. 591-615, 8 fig. An important subject in relation to bioproduction. Approaches are through Leaf Area Index (the area of leaf surface above a unit area of ground) and Leaf Area Density (ditto per volume of space). Field work was done in Malaya by students; the simple methods are described. Macaranga gigantea is compared with Musanga cecropioides; other pioneer species are quite different, however. Two profile diagrams of secondary forest are given. Crowns are modified in competition, as reflected in LAI and LAD. Plagiotropic branching allows trees to broaden quickly. Light- or shadepreference is not clearly correlated to architectural model. Givnish & Vermey’s prediction of variation in leaf shape, size, and inclination in lianas as a result of transpirational costs against photosynthetic gains, is discussed and clarified. Dipterocarps may change their model in maturity. — M.J.