ALBERT

Beschreibung: Some rain and savanna forests of western Suriname (Corantijn R., Winana Creek; Upper Marataka R.; Upper Nickerie R;) were studied and their composition was compared with that of forests of other parts of Suriname and Guyana. The savanna forests of western Suriname proved to be much related to Guyanan ( Walabaand Dakama-) savanna forests as described by Davis & Richards (1934) and Fanshawe (1952). On the other hand, there was less relationship as regards rain forests of western Suriname when compared with ones of Guyana and other parts of Suriname, except for the Demerara greenheart forest of the Upper Marataka R., which was closely related to the Demerara greenheart forests of Guyana as described by Davis & Richards (1934). In addition an upland rain forest was studied near Blanche Marie falls, Upper Nickerie R., which proved to be very much like that of the Stofbroekoe Mts., eastern Suriname, as described by Schils (1960). Species/area curves for some rain and savanna forests are given. The geographical distribution of some common western Surinam tree species was studied; of the seventeen species studied one was endemic for Suriname. An annotated list of all species of trees and palms occurring in the explored areas is provided.

Beschreibung: 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.

Beschreibung: Dicranella riparia (H. Lindb.) Mårt. & Nyh. is reported for the first time from Greenland, where it was found on a fluvioglacial delta in the Angmagssalik District in plant communities belonging to the association Calamagrosto-Ditrichetum (all. Calamagrostion neglectae). This is the sixth locality known, and the first outside Fennoscandia.

Beschreibung: The samples of the genus Calypogeia in the dutch institutional herbaria and private collections, those of C. arguta excluded, have been re-identified, according to the revision of the Swiss Calypogeias by Bischler (1957); distribution maps are given for all the taxa. More exact circumscriptions are given of several differentiating characters which were already established by previous authors. In C. fissa and C. sphagnicola the areolation of the leaves appeared to be a new differentiating character: in C. fissa the cells in the middle of the leaf show a great variation in length, whereas in C. sphagnicola the cell size is uniform. These differences are shown in histograms. C. muelleriana appeared to be restricted to the diluvial parts of the country, whereas C. fissa is common on both alluvium and diluvium; c. neesiana, C. sphagnicola and C. trichomanis are very rare, so that no clear geographical distribution can be given.

Beschreibung: This study deals with the taxa of the section Rubus of the genus Rubus L., so far as they are found in the Guelders district within the flora of the Netherlands. It concerns fifty species and some subspecies and varieties, mainly of the subsections Fruticosi Wimm. et Grab. and Discolores P. J. Müller. The similarity with the bramble-flora of northern Germany is obvious. A number of species, that occur in the latter region are absent however. Species of Central-European hills and mountains are as good as limited to the southern border of the Veluwe, which is mostly considered to belong to the Subcentreuropean district. South-European, often calciphilous species are absent. The nomenclature in the genus Rubus is very confused. There is an abundance of homonyms and synonyms. The number of misidentifications is rather large, meaning that a great deal of the literature is unreliable. The descriptions with many authors are absolutely insufficient, and type-specimens are often with difficulty or not at all to be traced. The difficulties arise from the fact that many taxa are not clearly separated. Some of them are well distinguishable, others are related by transitions. From a geographical point of view there is much difference as well. Some species have as their area almost the whole of Europe, others are limited to a very restricted area. In addition there is a difference in chromosome numbers (from diploids (2n = 14) to hexaploids (2n = 42). Most taxa are tetraploid. The abundance of forms within the section Rubus arises from a partly apomictic, partly amphimictic propagation. To set up some order in all those differences, the author has made the following distinctions: morphologically there are the different ranks of species and infraspecific taxa. Geographically distinctions have been made by means of a code of the capitals A to D inclusive: A indicates the taxa with the largest area, D the local taxa. Cytologically a code of Roman numerals has been given: I for diploids, II for polyploids. Beside the introductory theoretical part a short description of all taxa of the section above the specific rank has been given. All species and infraspecific taxa of this section, that are found to occur in the Guelders district have been described in detail, with mention of the type-specimen. Pictures have been added of the newly described taxa, and of some others as well. Maps of the distribution in the Netherlands of all the taxa have been inserted.

Beschreibung: In a forthcoming publication (Kramer, in prep.) floristic and taxonomic data of the pteridophyte flora of Suriname will be assembled, with keys and notes on their local distribution and ecological preference. The present paper deals with the geographical distribution of Suriname pteridophytes beyond the boundaries of Suriname (Fig. 2), a subject that lies beyond the scope of a local fern Flora. In the past, some (but relatively not very many) authors of fern Floras included a paragraph on the distribution of the taxa (Posthumus, 1928; Christensen, 1932; Backer & Posthumus, 1939). In some other fern Floras some space is devoted to ecology, but very little to geography (Holttum, 1954). In still others, considerations of a general kind on ecology and geography are altogether lacking (Vareschi, 1969). Lyell (1870), in his rather little-known book on the distribution of ferns, tried to bring together all the data known at his time; his work is now, of course, almost exclusively of historical significance.

Beschreibung: 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.

Beschreibung: Cytological investigations within Galium palustre L. showed the occurrence of three cytotypes, a diploid with 2n=24 chromosomes, a tetraploid with 2n=48 and an octoploid with 2n=96. Comparative morphological investigations, together with transplantation and crossing experiments confirmed the complexity of the species. The cytotypes are here considered to be subspecies of Galium palustre L.

Beschreibung: The wood descriptions of Juniperus communis L. ssp. communis are compared with those of earlier authors. The average and maximum tracheid lengths and the ray height distribution frequencies offer a means of separating the wood of the erect J. communis L. ssp. communis from that of the subspecies nana Syme with an entirely different habit.

Beschreibung: Caudalejeunea grolleana Gradst. spec. nov. from Madagascar is referred to this genus with some doubt because of the absence of gemmiparous branches. Ptychocoleus cristilobus (Steph.) Steph. from S. E. Asia has gemmiparous branches and therefore is a true Caudalejeunea: C. cristiloba (Steph.) comb. nov. This species is remarkable by its complicated ciliate leaflobule and by its polystratose rhizoid-disc. Two subspecies are distinguished: ssp. cristiloba from Burma, Andaman Is., Thailand, and Singapore, and ssp. samoana (Steph.) comb. nov. (Caudalejeunea samoana Steph.) from Samoa. Both C. grolleana and C. cristiloba have a 4-5-carinate perianth, which shows that the trigonous perianth present in most species of Caudalejeunea is not a stable character of this genus.

Beschreibung: Dalbergia and Machaerium are two distinct genera. The former genus Ecastophyllum is a distinct entity in the genus Dalbergia. The former genus Drepanocarpus differs from Machaerium only in certain pod characters and is considered as congeneric with it.

Beschreibung: 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.

Beschreibung: This paper is a preliminary account of investigations on species of Campylopus, mainly from the high Andes of Colombia and from adjacent regions. The studies are based on herbarium specimens, field studies and cultural experiments. The genus Campylopus was founded by Bridel (1819) on the basis of a curved seta only and included, therefore, species of Grimmia and other genera. Later he modified his earlier circumscription (Bridel 1826) so that the genus then contained (except for one uncertain species) only species of Campylopus as known today. A subdivision of the genus was made by Limpricht (1886) based on the structure of the costa as seen in cross section: Pseudocampylopus Costa without stereids, ventral layer of large cells, other cells containing chlorophyll with moderately thickened walls. Campylopus Costa with dorsal stereid groups. Palinocraspis Costa with dorsal and ventral groups of stereids.

Beschreibung: 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.

Beschreibung: The chromosome numbers of 85 species of flowering plants from the Canary Islands were determined; 5 of the counts turned out to be new. Notes on some species are given. Numbers deviating from previous counts proved to occur in Polycarpaea divaricata (Pit.) Poir. and Koeleria phleoides (Vill.) Pers. 49 counts are new for the Canary Islands and are listed in table 2.

Beschreibung: The present paper, the fifth¹) in this series, is a continuation of the documented list of chromosome numbers of Angiospermae occurring in the Netherlands. In this paper 49 species and two hybrids are listed. Some species show variation in chromosome number, as was concluded after comparison of our results with those of other authors [cf. the lists published by Löve and Löve (1961); Cave et al. (1956-1964); Ornduff (1967, 1968, 1969); Solbrig and Gadella (1970); Moore (1970)]. Some notes on 14 species and two hybrids are given.

Beschreibung: 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.

Beschreibung: The circular which was enclosed in Bulletin 24 has received full attention of our readers and a large number of cards were received. The large majority favours the continuation of our annotated bibliography as it is, not cutting off references on the Australian and Pacific floras, and not discarding the references on the Cryptogams. A review of Mr. Ferguson’s Index is given on p. 1912. October 21, 1970, Foundation Flora Malesiana existed twenty years. This anniversary was marked by a small festivity in the Rijksherbarium. Although curtailed financially since January 1958, it has kept its promise to promote all studies encompassing progress of the botany and plant geography of the Malesian subcontinent. It is gratifying that with the distinct tendency of the rehabilitation of the economical and political situation in Indonesia during the last few years, science in general, and biology in particular, are getting a new impetus. Amongst others through international agreement and co-operation, two master organisations have been set up, SEAMEC and BIOTROP, the latter being the centre of biological studies and education allotted to Bogor. It is clear that this focus will be a great stimulant and will sponsor biological activity. It was particularly pleasant to learn from Professor Sarwono and Dr. Didin, chairman and secretary of LIPI respectively, that this general scientific rehabilitation scheme included assistance towards the Flora Malesiana Foundation. Although the scientific elaboration of Flora Malesiana has been transferred as a major work project to the Rijksherbarium, a necessity since 1958, there are various desiderata left, amongst others contributions from Indonesian systematists. Unfortunately, the net result of Dr. Kostermans’s efforts to have promising Indonesian students thoroughly trained and prepared to share the tremendous task still before us, is meagre. Two of them, Dr. Soegeng and Dr. Didin, are occupied with very responsible and very necessary but largely administrative tasks, Dr. Prijanto died unexpectedly, and Dr. Soepadmo spends his time largely on educational matters. Clearly something must be done and we trust that in the near future creative work by Indonesian systematists can be resumed. We shall, I sincerely hope, overcome, and the future carries certainly very promising features for a more intense co-operation. And disinterested loyal co-operation is the very basis of ensuring achievement. It is with immense satisfaction that I see this perspective of a bright future ahead.

Beschreibung: Dr. W. Meijer, who is Dutch-born, worked in Indonesia from 1951 to 1958, first at Bogor, then at Pajakumbuh, Sumatra, and was Forest Botanist in Sabah for several years, revisited Indonesia with a National Science Foundation travel grant under an NSF-AID (Agency for International Development) program for Scientists and Engineers in Economic Development. The University of Kentucky Research Foundation covered part of the travel costs in Indonesia together with the Regional Center for Tropical Biology (BIOTROP) in Bogor, and Weyerhaeuser Timber Co., which is now also financing the printing at U.K. of a guide on trees in Indonesia which should be an excellent tool for better training of foresters in Dendrology (tree knowledge). The Japanese Sumitomo Timber Company also acted as liaison for Dr. Meijer during his visit to East Kalimantan. Dr. Meijer has written a fully documented final report which he hopes to submit to the Indonesian government through its Academy of Science. Parts of the report will be published in the Indonesian Forestry Journal and in International Nature Conservation Journals. He hopes for continuing support from the University, its Office for International Affairs, and the U.K. Research Foundation to get this report published. Officials in the World Bank in Washington D.C. and the Smithsonian Institution have also expressed great interest in the results of Dr. Meijer’s recent mission to Indonesia. The editor is glad to print this preliminary report:

Beschreibung: Dr. J.A.R. Anderson, who retired from the Sarawak Forest Service, and now lives at 15 Church Hill, Edinburgh EH10 4BG, will continue his interest in Malesian botany and ecology as a consultant forester and ecologist. The MS. of a project on which he had been working for several years is now in the final stage. This is a ”Check List of the Trees of Sarawak”; the scientific names will be coded and alphabetically arranged by families, genera and species, together with a moderately comprehensive list of vernacular names. This should be of value to the Forest Department in Sarawak. Miss P. Aston, senior botanist at the Melbourne Herbarium, is Australian liaison officer at Kew where she will remain until mid-1974. She is specialized in aquatic plants of Australia on which subject she wrote a most informative book (1973) which will be duly reviewed in this journal.

Beschreibung: The entries have been split into five categories: a) Algae – b) Fungi & lichenes – c) Bryophytes – d) Pteridophytes – e) Spermatophytes & General subjects. — Books have been marked with an asterisk.

Beschreibung: History. In order to understand its present function, a short historical account is necessary. Bibliotheca Bogoriensis is the oldest science library in Indonesia, established in 1842 at the proposal of J.K. Hasskarl, assistant hortulanus of the ’s-Lands Plantentuin in Buitenzorg, West Java (now called Kebun Raya Indonesia Bogor). The very first 25 books were bought from Dr. Jacques Pierot, a botanist who was sent by the Dutch Government to China. Ever since many visiting botanists left or sold their book collection, the reason why Bibliotheca avails of fine old antiquarian books in the field of botany. Among the library’s treasures are the reprint collection belonging to Melchior Treub with his own hand-written catalogue, as well as his correspondence, and all his awards received from many countries and scientific societies in the world.

Beschreibung: In the past century Cornaceae were mostly delimited in a wide sense and they represented a fairly heterogeneous assemblage. HARMS (Ber. Deut. Bot. Ges. 15, 1897, 28 and in E. & P. Nat. Pfl. Fam. 3, 8, 1898, 255) distinguished 7 subfamilies. Of these Garryoideae were later mostly recognized as a separate family Garryaceae, as Alangioideae Alangiaceae, Nyssoideae and Davidioideae together as Nyssaceae, leaving Cornaceae with the remaining three subfamilies Cornoideae, Curtisioideae (monotypic, South Africa) and Mastixioideae (monotypic, Indo-Malesian tropics). Cf. WANGERIN, Pfl. Reich Heft 414 (1910) 18. In recent years, however, the other genera (6) of the Cornoideae, besides Cornus, have also been recognized as monotypic families, with the exception of Corokia which was transferred to Saxifragaceae-Escallonioideae. Notably TAKHTAJAN (Proiskh. Prokruitosem. Rast.: 89, non vidi) is in favour of these monotypic families. In his ‘Flowering Plants’ (ed. C. JEFFREY; 1969: 227) he accepted 7 segregate families besides Cornaceae sens. str. (omitting mention of two Madagascan genera, one of which he had formerly also raised to family rank, according to SHAW, 1973). These 7 families he arranged, together with Araliaceae and Umbelliferae, in the order Cornales, a phylogenetic construction of affinity not much different from earlier conceptions. The general impression is thus that the distinction of the segregate families is largely an inflation in rank.

Beschreibung: Asher’s Guide to botanical periodicals is a 3-weekly printed announcement of articles published in more than five thousand selected periodicals, in the field of: anatomy bibliography botanical history cytology dendrology ecology economic botany evolution floristics horticulture hydrobiology limnology medical mycology microbiology morphology palaeobotany palynology personalia pharmaceutical botany phytochemistry phytogenetics phytogeography plant physiology plant taxonomy toxicology Symposium and Congress Proceedings also to be included in the journal. An author index and plant name index taken from the titles of the articles will be added annually.

Beschreibung: The entries have been split into five categories: a) Algae — b) Fungi & Lichenes — c) Bryophytes — d) Pteridophytes — e) Spermatophytes & General subjects. — Books have been marked with an asterisk.

Beschreibung: Cyclopaedia p. xxiii-xxix add: F. de Lahaie, see C. A. G. RICHE. C. A. G. Riche and F. de Lahaie, naturalists of the voyage in ‘La Recherche’ and ‘L’Espdrance’ in search of La Pdrouse, 1791-1794, collected in Mauritius and Reunion. Part of the plants have erroneously been labelled ‘Java’.

Beschreibung: Trees, shrubs, lianas, very rarely herbaceous (extra-Mal.); twigs often lenticellate and nodes with gland fields; spines very rare (extra-Mal.). Stipules absent. Leaves simple or mostly compound (digitate or impari-1-4-pinnate), (in Mal.) decussate, rarely in whorls of 3-4, often provided with glands underneath, in the New World often provided with terminal tendrils, rarely scattered or in pseudo-whorls (extra- Mal.); domatia sometimes present (fig. 8b, 23h). Inflorescences bracteate, cymose, but not rarely thyrses contracted to racemiform or racemose inflorescences, or even reduced to solitary flowers (extra-Mal.), terminal, axillary or from the old wood. Pedicels mostly with 1-2 bracteoles. Flowers usually very showy, rather large, bisexual, articulate with the pedicel or not. Calyx connate, closed in bud and later (not rarely irregularly) splitting into lobes, or cupular, or spathaceous, or lobed from the beginning and with equal or unequal, valvate lobes, developing earlier than the corolla, often glandular outside and inside with water and slime producing glands and hydathodes, persistent or circumscissile caducous along an abscission line. Corolla sympetalous, campanulate, tubular, funnel- or salver-shaped, mostly zygomorphic, lobes equal or unequal, valvate or imbricate in bud, tube often with a narrow cylindrical (constricted) lower part (basal tube) and a widened upper part (upper tube). Stamens 5 almost equal, or mostly 4 didynamous, the 5th sterile, rudimentary, adnate to the corolla tube, mostly inserted at the rim of the basal tube and not rarely (glandular) hairy at the insertion, more rarely inserted higher up. Anthers basifixed, 2-celled, rarely one cell barren or 1-celled, introrse, dehiscing lengthwise, usually the anthers connivent in pairs; anther cells often free and divergent, connective not rarely produced. Disk intrastaminal, mostly annular, rarely absent. Ovary superior, 2-celled, rarely 1- or 4-celled (extra-Mal.); style filiform, stigma usually 2-lipped, sensitive. Ovules (in Mal.) in each cell on the septum in two or more rows of 3-~, mostly on 2 placentas. Capsule 2-valved, either loculicid with the septum perpendicular to the valves — sometimes provided with an additional transverse false septum — or septicid with the septum parallel with the valves, or (extra-Mal.) an indehiscent, 1-celled, soft or hard-shelled, pulpy berry. Seeds in each cell attached to the dissepiment in one or more rows, inserted transverse to axis of fruit, anatropous, mostly on both sides with hyaline wings; embryo exalbuminous, the cotyledons mostly notched, sometimes on both sides. Germination always epigeal. Distribution. About 120 genera and some 650 spp., mainly in the tropics and subtropics, roughly between 40° N and 30-35° S, very few in the warm-temperate zone; in Malesia: 14 native genera of which 2 are endemic, viz Hieris in Penang and Lamiodendron in Papuasia. Among the remaining 12 one occurs through the Old World (Dolichandrone), 7 are shared with continental SE. Asia (two of which extend also to Africa and Madagascar: Fernandoa, Stereospermum) and 4 with Australia and Melanesia; the latter occur in Malesia only in the east except Deplanchea which ranges westward to Sumatra.

Beschreibung: Trees, shrubs or perennial or annual herbs. Leaves simple, opposite and decussate (Mal. spp.), entire (Mal. spp.), sessile to shortly petioled, often with ± translucent and sometimes black or red glandular dots and/or lines. Stipules 0. Inflorescences terminal and sometimes axillary, very rarely axillary only, cymose to thyrsoid or rarely racemose, bracteate at least initially, 1-~-flowered. Flowers bisexual, actinomorphic, homostylous or heterodistylous. Sepals 5 (Mal. spp.), free or ± united, imbricate, entire or with margin variously divided and often glandular, lamina glandular like the leaves, usually with greater proportion of glands linear rather than punctiform, persistent (Mal. spp.). Petals 5 (Mal. spp.), free, imbricate (contorted), alternisepalous, entire or with margin variously divided and often glandular, lamina usually glandular like the leaves, sometimes with nectariferous basal appendage, glabrous (Mal. spp.), caducous or persistent. Stamen fascicles 5 (Mal. spp.), epipetalous, free or variously united, each with 1-~ stamens; filaments variously united or sometimes apparently free, the free part usually slender; anthers 2-thecal, dorsifixed, often with gland terminating connective. Staminodial fascicles 3 or 0 (Mal. spp.), when present alternating with stamen fascicles. Ovary 1, superior, 5—3-celled or 1-celled with 5-2 parietal placentas; styles 5-3 (2), free or ± united, ± slender; stigma punctiform to capitate; ovules ~-2 on each placenta (Mal. spp.), anatropous, horizontal or ascending. Fruit capsular (Mal. spp.), dehiscing septicidally or loculicidally. Seeds ~-1 on each placenta, sometimes winged or carinate; embryo cylindric, straight or curved, with cotyledons longer to shorter than hypocotyl; endosperm absent. Distribution. There are 7 genera with c. 550 spp., cosmopolitan except for Arctic regions and most of Polynesia, but only Hypericum and Triadenum occur outside the tropics and immediately adjacent areas. Of the three tribes, the Vismieae (3 genera) occur in Africa (including Madagascar) and America, the Cratoxyleae (3 genera) in Madagascar, Indo-Malesia, E. Asia and NE. America, and the Hypericeae (Hypericum) throughout most of the range of the family except for most lowland tropical areas. In Malesia only two genera are present: Cratoxylum BL. and Hypericum L.

Beschreibung: During an ecological study of fungi of the tidal mudflats in Kuwait, a Sporothrix species has been recorded twice, in 1977 and 1980. It differs from other species of the genus (de Hoog, 1974, 1978) in several characters and is here described as a new species. A comparison with similar species of the genus is added.

Beschreibung: De in Nederland waargenomen soorten van Taraxacum uit de sectie Spectabilia Dahlst. zijn: T. anglicum Dahlst., T. euryphyllum (Dahlst.) Christ., T. hygrophilum v. S., T. johannis-jansenii v. S. en T. nordstedii Dahlst. Op de kaartjes is hun verspreiding weergegeven, in hoofdzaak berustend op gegevens van na 1950 (fig. 1, a—d). Zou men de oudere gegevens daaruit weglaten, zo zou het beeld dat de kaartjes bieden niet noemenswaard worden beïnvloed. Bij de steeds verder schrijdende cultuurmaatregelen worden deze, op natuurlijke standplaatsen groeiende soorten ernstig bedreigd. Volledigheidshalve zij vermeld dat nog twee nieuwe soorten uit deze sectie te zijner tijd in de Acta Botanica Neerlandica zullen worden gepubliceerd: T. duvigneaudii v. S. (Gouda-Waddinxveen) en T. zevenbergend v. S. (Hijzen bij Moergestel en Houtakker bij Tilburg).

Beschreibung: In 1960 I made a preliminary analysis of the floristic distribution of the native Phanerogam genera of the Pacific islands, which amounted to 1511 genera in all. The aims of the present work have been to record these more accurately and more critically in detail, especially with regard to native versus introduced, to complete the survey with new records from new explorations made during the interval, and to evaluate new taxonomic literature on Pacific genera. The present list amounts to a total of 1666 genera, as far as known in July 1969, listed in an Appendix. The floristic relationships of the Pacific islands and the surrounding continental areas are established and a hierarchical subdivision of the flora of the Pacific islands based on demarcations in it is made. Furthermore a nomenclatural stabilization of the names and ranks of the subdivisions is attempted. Chapter IV, 3. An attempt was also made to find factual data on the correlation between distribution and means of dispersal. Chapter IV, 4. Secondary aims were to review earlier attemps towards a subdivision of the Pacific flora (Chapter II), two other secondary purposes to see whether traces of the historic plant-geography of the Pacific flora are still reflected in the present flora (Chapter V), and finally to compare geographic subdivisions and other data from non-Phanerogam taxa, mostly animals, with floristics. Chapter VI. Chapter III is devoted to an explanation and a discussion of the methods employed. Arguments are given why only Phanerogams have been considered and why only native genera have been used for computing results. Chapter III, 1—2. Arguments are given for employing the genus as a working unit. It is shown that the genus is much less susceptible to variability in taxonomic concepts than either the species or the family. Besides it is comparatively easy to establish the distribution of a genus fairly reasonably from literature. Chapter III, 3. Chapter III, 4 is devoted to a discussion on the sources of information on which this work is based, comprising i.a. literature, herbarium collections and personal information. Many errors are contained in the first two of these and it cannot be avoided that some mistakes have not been detected. Also, the island groups have been investigated with a varying degree of intensity. The island groups in the Pacific are taken as geographic units of which there are 36. The surrounding land masses are divided into 12 main areas. Chapter III, 5. Of each genus occurring in any of the 36 Pacific unit areas the full distribution is traced. See Appendix. From a comparative study of generic ranges, it has appeared that they exhibit a restricted number of recognizable patterns, 17 of which have been distinguished. These I have called distribution types in this work. Chapter III, 6. The choice of geographic unit areas introduces a certain element of arbitrariness. Each island group can then be characterized by its set of distribution types: the distribution types spectra. It is also possible to calculate floristic relationships or resemblance between the island groups, for which a number of methods are discussed and evaluated. It appears that basically all methods lead to more or less similar conclusions. Chapter III, 9. As a test for the validity of the conclusions based on the distribution of all genera, similar calculations were performed on 345 revised or otherwise well-known taxa. Although the percentages of the distribution types are slightly different the general conclusions are corroborated. Chapter III, 7. In addition, an attempt has been made to find whether there is a correlation between the distribution and the means of dispersal of these revised or otherwise well-known taxa. Chapter III, 8. One of the most important results of this work is the census of Pacific genera. See Appendix. By using the method of distribution types spectra, demarcation knots and other methods it has been possible to find demarcations and to define phytochores. The main demarcation is that between the New and Old World floras. A hierarchy is set up of subdivisions which is illustrated in fig. 35 and tabulated in table 6. It appears that a strong demarcation exists between the islands on the American side of the Pacific (Galapagos, Juan Fernandez, etc.) and the western islands. Hawaii and SE. Polynesia form the easternmost frontier of the OldWorld flora. This conclusion was reached almost unanimously by all phytogeographers, one of the earliest being Engler after whom I have proposed to name this demarcation: Engler’s line. In the W. Pacific Bonin in the north and New Zealand and adjacent islands in the south show a sharp demarcation from the rest, Bonin forming part of the E. Asiatic region, and New Zealand forming a distinct subregion of the Australian. New Caledonia cannot be satisfactorily placed. It shows relations with New Guinea, Queensland and the Pacific in about equal measure. Besides it abounds in endemics, some of which are highly peculiar in various aspects. The remaining part of the Pacific shows an essentially Malesian character, decreasing in strength from west to east. The New Hebrides with Fiji, Samoa and Tonga form a subprovince as does SE. Polynesia, Hawaii is considered a separate province of the Malesian subregion. Unlike the islands west of Engler’s line the American Pacific islands show very little mutual floristic alliance, but they all have a characteristic American flora. Comparisons with subdivisions and demarcations of other groups of organisms show that often, but not always, the same barriers are respected by unrelated groups. My data give certain indications about the past but no attempt has been made to correlate the conclusions with contemporary geological theories. The regularity of distribution patterns, the close floristic alliance among the islands west of Engler’s line independent of their distance from each other, combined with the fact that dispersal spectra show no clear correlation between distribution and ‘dispersibility’, suggests an old relictual character of the flora rather than a young one built up by random long-distance dispersal. This applies especially to the W. Carolines, the Melanesian islands, Lord Howe I. and New Zealand, i.e. islands more or less within the Andesite line, which are much richer and contain many poor dispersers. For Hawaii also a better accessibility in the past seems indicated. The regular decrease in the number of taxa in proportion to their distance from source areas is discussed. An attempt is made to explain the phenomenon. A tentative conclusion is reached that impoverishment and other phenomena attributed to oceanic islands are not restricted to these. A large scale comparative study of continental and island floras is needed.

Beschreibung: In January 1971 Dr. Simon Jan van Ooststroom, senior botanist of the Rijksherbarium, retired on reaching the age of 65, having been on the staff since November 1934. Though this event will to a certain extent change, but not interrupt, his work, it is nevertheless worth commemorating, as he has so many contacts at home and abroad, all of whom have profited from his wide knowledge which he shared freely. He was born in Rotterdam in 1906, where he received his primary and part of his secondary education. He completed the latter in Schiedam and entered the University of Utrecht in 1924. He became the assistant of Prof. Dr. A. Pulle in January 1927. By chance he became interested in the genus Evolvulus and this led him to compose an excellent world monograph of this genus for which he was awarded his doctor’s degree in 1934 and which furthermore caused a life-long interest in the bindweed family, on which he became a most reliable authority, especially for the Indo-Australian region. Many papers emanated from these studies, culminating in his treatment (assisted by Dr. R. D. Hoogland) of the family in Flora Malesiana (1953).

Beschreibung: Among the collections of Knema acquired by the Rijksherbarium since the publication of my new account of the genus Knema, in Blumea 25, 1979: 321 — 478, a few specimens caused problems with the identification, and at closer examination these yielded facts of interest which are published here. Some specimens represented stages not yet known, for instance fruits, or male flowers, while other specimens meant a significant range extension of the species. Two new species and one new subspecies are described. For easy reference, the sequence and numbers of the species presently treated correspond with the numbers as used in the account of 1979. The new species bear the number of the species after which they appear in the general key of 1979, with the addition ‘-bis’.

Beschreibung: The early development (ontogeny) of the carpels of 20 species belonging to 8 apocarpous families was investigated with the scanning electron microscope. The results indicate that on the floral apex a circular or a convex meristem develops into an obliquely ascidiate primordium by unequal growth of its periphery. By further unequal growth it develops into a young carpel. The terminal mouth of a cup becomes the lateral cleft of a carpel. The different forms of the young carpels in different species are defined by the varying degree of development of the adaxial region of the initial meristem and/or its margin on the side of the floral apex. This hypothesis is theoretically evaluated.

Beschreibung: A peculiar structural detail, occurring during the development of ovules, seems to have passed almost unnoticed till the present day. It concerns the distal rim of either the outer or the inner integument, which appears to be slightly lobed in the ovules of several unrelated plants. In a recent note (1970) I called attention to this feature. It is known from Juglans and Platycaria (Warming, 1878; Leroy, 1955; Boesewinkel and Bouman, 1967), where the single integument is two-lobed. Warming mentioned two more cases, namely Lagarosiphon and Symplocarpus; however, I cannot confirm his observations from dried material. I noticed it myself in Scyphostegia horneensis, in Caloncoba welwitschii, and in Sterculia alexandri. In these three species the lobes occur at the rim of the outer integument. To these can now be added Hernandia peltata. However, in that species the lobes occur at the rim of the inner integument.

Beschreibung: The stomata as occurring on the fronds of the sporophytes of a large number of Polypodiaceae s.s. (Filicales) are investigated. A number of different stomatal types is recognised, (newly) described, and their ontogeny investigated. The different types of stomata are discussed in relation to their possible significance for tracing phylogenetic relationships in the Polypodiaceae following a cladistic analysis.

Beschreibung: The new scheme of classification presented in this paper is based on the examination of all species in the family Thelypteridaceae which I have been able to trace in the Old World. I have gradually compiled a list of about 700 names (basionyms) and have examined type or other authentic material of all but a small proportion; and in the course of study of specimens in many herbaria I have noted about another 50 species which appear to be undescribed. I have attempted to re-describe all the previously-named species, noting characters not mentioned in existing descriptions, especially the detailed distribution of hairs and glands, including those on the body and stalk of sporangia, and characters of spores. It is probable that there remain some published names, not yet detected by me, which refer to species of the family, but I think there are not many. I have also made a study of all generic and infrageneric names which are typifiable by species of Thelypteridaceae, and in doubtful cases I have tried to clarify and fix the typification. As already reported in the second paper of this series (Blumea 18: 195—215), I have had the help of Dr. U. Sen and Miss N. Mittra in examining anatomical and other microscopic characters of some type species, and hope to present further information of this kind later.

Beschreibung: Until now three species of apetalous Hamamelidoideae have been reported from Taiwan (Li, 1963): Distylium gracile Nakai, Distylium racemosum Sieb. & Zucc., and Sycopsis formosana (Kanehira) Kanehira & Hatusima (close to or identical with S. sinensis Oliver). A list of the specimens of the Herbarium of the National Taiwan University, Taipei (TAI), kindly sent by Prof. Ch. E. DeVol (Oct. 3, 1970), contains the same three species.

Beschreibung: On 29 July 1974 dr. J. H. Kern died at the age of 70. At the occasion of his official retirement from the Rijksherbarium staff (January 1969) Van Steenis and Van Ooststroom gave due recognition to his achievements in tropical botany and to his share in the progress of the knowledge of the Dutch flora. There is no need to repeat here what was written at that time (Blumea 17, 1969, 1—3 and Gorteria 4, 1968, 69—72). After his retirement he was appointed honorary collaborator of the Rijksherbarium and at first he continued his work more or less as usual. However, his health soon became worse and his deteriorating eyesight prevented him from working with the microscope. Consequently, he could not finish the revision of Carex and Uncinia for Flora Malesiana, the only genera which still were missing from his manuscript. It was decided that the family would be published without these genera; the unfinished manuscript will be left to another botanist to be put into final shape. Together with professor Van Steenis he made the manuscript ready for the press, but only some days after a first copy had been received from the printers, Jan Kern suddenly died.

Beschreibung: A world-revision of Arthraxon Beauv. ( Gramineae) is presented. Three wide-spread species, A. hispidus (Thunb.) Makino, A. lanceolatus (Roxb.) Hochst., and A. lancifolius (Trin.) Hochst. are very variable and have caused the description of a great number of taxa, most of which are here reduced to synonomy. There are now 7 species and 9 varieties; for 6 of the latter new combinations are proposed. No new taxa are described.

Beschreibung: In April 1969 I paid a visit to Ceylon for a week, allowing me to study for the first time the collections of the Department of Agriculture, Peradeniya (PDA), including Thwaites type specimens. My stay was made possible through the Smithsonian Flora of Ceylon Project. The study of Thwaites’ type material revealed some new facts affecting the synonymy of Ochna jabotapita L. and O. obtusata DC. It had previously come to my attention that materials distributed as O. moonii Thw. under number C.P. 1224 belonged to either O. obtusata (BM, BO) or O. lanceolata Spreng. (K, P) (see also the note on page 26 of my revision). I subsequently found that all three species of Ochna in Ceylon were represented on the sheet in PDA, obviously bearing Thwaites’ holotype. From this and accompanying sheets it is clear that the material belonging to O. jabotapita should in fact be designated as the holotype of Thwaites’ species. Consequently, the whole paragraph under O. moonii on page 30 of my revision should be transferred from the synonymy of O. obtusata to that of O. jabotapita. The phrase ‘excl. syn. O. quarrosa L. sensu Moon = O. jabotapita L. ’should be deleted. The type should be referred to as C.P. 1224 p.p. (PDA p.p. holo).

Beschreibung: A comparison of the structure of the flowers of various genera of the tribe Passifloraceae-Passifloreae supported the view of staminodial origin of the disk. The East African genus Schlechterina is kept separate from the West African genus Crossostemma. The genus Efulensia from Equatorial Africa is recognized beside the Madagascan genus Deidamia. Revised key to the genera of the Passifloreae, together with short descriptions.

Beschreibung: A massive, expensive book, principally an atlas of small botanical drawings (line drawings, c. 10 by 6 cm, two to a page), each provided with the Latin and vernacular name, a concise 2—4 line descriptive note, and the use of the plant. A similar text is added in Japanese. Most pictures are reproduced at ½ nat. size. Species are arranged alphabetically within the families which are in turn arranged according to the Englerian system. Only Gymnosperms and Angiosperms are included. Prof. Corner is responsible for checking the names and the brief descriptive notes. The pictures were drawn by Prof. Watanabe during World War II for the Japanese Military Administration at the Singapore Botanic Gardens. Two volumes of these drawings were already published in small octavo in 1945 at Singapore, one on Medicinal Plants, the second on Edible Plants. A selection of some 200 plates was also later published by Prof. H. B. Gilliland in his ‘Common Malayan Plants’ in 1958 (University of Malaya Press, Singapore). The present work embraces all pictures made by Prof. Watanabe, many unpublished before, with addition of a number not made at Singapore, amongst them several of rare parasitic and saprophytic species from Borneo and Celebes, Pandanus from New Guinea, and other interesting odds, even from Japan, the Bonins, etc.

Beschreibung: A key is given to 7 species, 6 of which occur in Malesia. Of each the basionyms and a restricted synonymy are given, besides notes on their distribution. Rotala diversifolia Koehne, hitherto only known from Thailand, appears to occur in several localities in Malesia. A new combination, R. catholica (Cham. & Schlechtend.) B. van Leeuwen, is proposed for the American R. dentifera (A. Gray) Koehne, introduced in Luzon.

Beschreibung: Il est évident qu’un pays boréal comme la Hollande ne pourrait être riche en Phalloïdées. Dans l’Europe entière même on n’a trouvé qu’un très petit nombre d’espèces, et l’on peut dire pour cause que les Phalloïdées sont une famille surtout méridionale sinon tropicale. Dans la littérature on trouve environ 6 (ou 7) espèces mentionnées pour l’Europe [p. e. LLOYD, 25c, p. 72], Parmi celles-ci quelques unes sont limitées à la région méditerranéenne, quelques autres ne sont signalées que çà et là comme des trouvailles plus ou moins accidentelles ou rares. Deux espèces seules se rencontrent régulièrement en quantité plus considérable et en plusieurs endroits de l’Europe centrale et occidentale. Aussi ne faudrait-il pas la peine de consacrer une étude spéciale aux Phalloïdées des Pays-Bas, s’il n’était arrivé qu’une des Phalloïdées les plus rares de l’Europe a été trouvée déjà deux fois en Hollande. D’autre part il y a sur les Phalloïdées des Pays-Bas des renseignements qui appartiennent sans doute aux plus anciens qu’on en connaisse. Ils se trouvent répandus çà et là dans de la littérature peu accessible ou rare. Plusieurs auteurs y ont consacré des mémoires, mais souvent sans avoir examiné les publications originales. Par suite il reste encore quelques contradictions à résoudre.

Beschreibung: The Netherlands is to be congratulated in having available within its borders such an outstandingly important collection of historical botanical material as that preserved in the Rijks Herbarium at Leiden. To a greater and greater degree the importance of this great assemblage of botanical specimens becomes manifest as critical work is done on it and on the corresponding collections in other botanical centers, and as various natural groups are treated monographically. In many groups of plants, particularly those represented in the Netherlands East Indies, the Rijks Herbarium is the court of last resort in determining the exact status of many hundreds of described species, because in this collection are deposited the actual types of the very numerous species described by REINWARDT, BLUME, KORTHALS, MIQUEL, BÜSE and other pioneer botanists who did the original basic work on the exceedingly rich flora of Malaysia. In addition to these early botanical collections the institution contains a most important series of specimens collected within the past half century in all parts of Malaysia, extending from Sumatra to New Guinea and including the Philippines. It is an almost hopeless task accurately to indentify these recent collections without reference to the vast stores of historical material preserved in Leiden. While it is true that extensive collections of Malaysian plants are to be found in other botanical centers, such as Kew, the British Museum, the Paris Museum, the Berlin Botanical Garden, the Natural History Museum, Vienna, the New York Botanical Garden, the United States National Herbarium, and at such distant centers as Buitenzorg, Singapore, Calcutta, and Manila, not one of these institutions has such great wealth of historical Malaysian material as is to be found in the archives of the Rijks Herbarium. In extent, that is in the actual number of specimens of Malaysian plants, disregarding the historical aspects of the collection, no botanical institution in the world contains such a mass of Malaysian material as that preserved in Leiden. While it is true that in the past some monographs have been prepared on the basis of an actual examination of material in several institutions, much such work has been done solely on the basis of collections available in one center. The modern tendency is for botanists to go farther afield and in doing really critical work to examine the historical material preserved in the larger botanical centers. This may and usually does involve more or less travel, but many centers now provide for inter-institutional loans, while it is usually possible to secure photographs of really important specimens. Through such cooperation monographic work is rendered much more inclusive, more valuable, and more accurate than in those cases where a monographer has based his work largely or wholly on the collections in one institution; and where his knowledge of those species not represented in his own institution was gained from the descriptions alone. It is axiomatic that no monographic treatment is fully satisfactory unless it is actually based on comprehensive collections where the author, through one means or another, has been able critically to examine actual specimens of most or all of the species considered by him, including as far as possible the actual types on which the original descriptions were based.

Beschreibung: De stichting van ’s Rijks Herbarium kwam tot stand bij Koninklijk Besluit van 31 Maart 1829 (zie Bijlage 1). De basis voor ’s Rijks collecties werd gevormd door de verzamelingen van BLUME, KUHL en VAN HASSELT, en ZIPPELIUS, welke door BLUME uit Nederlandsch-Indië waren meegebracht, terwijl BLUME zelf tot Directeur van het Instituut werd benoemd. De rijke, grondleggende collecties voor de studie van de flora van Nederlandsch-Indië — het Rijks Herbarium — zou in een gebouw te Brussel worden ondergebracht en bij schrijven der Regeering der Stad Brussel No. 670 van 23 Febr. 1830 werd aan BLUME meegedeeld, dat zoodra mogelijk in het Koninklijk Athenaeum de noodige vertrekken tot provisioneele opberging van het Rijks Herbarium ter beschikking zouden worden gesteld. Bij zijn benoeming tot directeur werd aan BLUME een bijzondere onderscheiding verleend, n.l. de titel van Hoogleeraar en toekenning van een ridderorde. Hoewel BLUME’S vertrek uit Indië misschien niet geheel vrijwillig is geweest (zie SIRKS 1915, Indisch Natuuronderzoek p. 141), had hij als eerste directeur van den tuin te Buitenzorg zich zeer verdienstelijk gemaakt en zich doen kennen als een uitstekend botanicus en energiek man. „BLUME’S ijver en werkkracht ten bate van den Plantentuin te Buitenzorg ontwikkeld, tijdens de 4 jaren waarin hij het directeurschap bekleedde, waren buitengewoon.” (TREUB 1892, Korte geschiedenis van ’s Lands Plantentuin p. 8). De catalogus van den Hortus Bogoriensis en de Bijdragen tot de Flora van Nederlandsch Indië leggen getuigenis af van zijn werkijver en arbeidsvermogen.

Beschreibung: From 1970 up to 1973 plankton sampling was executed as part of the “Cooperative Investigations in the Caribbean and Adjacent Rerions” (Cicar-project). For the stationlist one is referred to Van der Spoel & Koperdraat (1974). During the cruises 21-23, 27-29, 31-35 and 37-38 a 3 PK Stork/ Pelger vacuum pump was used for sampling. The samples examined in this study are all pump samples. The plankton collected from 4500 litre filtered water was settled during 24 hours. The volumina were divided into six classes: 0-0.5 ml; 0.5-2 ml; 2-5 ml; 5-10 ml; 10-25 ml and 25 ml. The colour of the samples was distinguished as green, red, white and brown. Slides made from subsamples showed that the red colour of the preserved samples stands for a high percentage (up to 93%) of zooplankton; green means that the sample consists mainly (78-94%) of diatoms with large volume, like Coscinodiscus species. The white colour is an indication of small diatoms and other phytoplankton, while the brown coloured samples contain more detritus (average 22.5%) than other samples. The results of the volume and colour measurements are presented in figure 2-12. These maps show in the coastal waters of the Guyana’s a high primary production. This production is in March (Fig. 4) as well in April (Fig. 5) high at a certain distance from the coast. Near the coast and further seaward near the continental slope the production is far lower. This also becomes clear in figure 13 up to 20, in which the ratio of sand, detritus, phyto- and zooplankton is given. Hulbert a.o. (1969) and Cadée (pers.comm.) found in those months near the coast a small strip with a high primary production. The high production is caused by the upwelling of nutrientrich water at the continental slope, because the Amazon outflow contains hardly phosphates and nitrates (Ryther a.o., 1969). This upwelling also explains the high quantity of sand found in the samples before the continental shelf (Fig. 13 and 17). It appears that the diatoms which are dominant in the samples (Fig. 21) -taken in a short period and rather close- belong to different groups. This could be an indication for different watermasses in which the circumstances are optimal for the different diatoms. It was not possible to discover a relation between the different phytoplankton populations and the physical and chemical data (Fig. 22). It is therefore improbable that the different phytoplankton populations are caused by different watermasses. They form rather different stages in the succession of one bloom. The diversity of the phytoplankton (Tabel 1 and 2) is very low. Although this is normal during the bloom, the main reason for this low diversity must be found in the hydrographical situation; in regions with upwelling the diversity drops (Margalef, 1967). In figure 23 the diatoms and dinoflagellates are divided into littoral, neritic and oceanic species. The coastal samples contain a lot of littoral species, in the region with a high primary production mainly neritic species are found and beyond the continental shelf the population is typical oceanic. On this ground the supposition that in this region different watermasses don’t mix is untenable. The suggestion of Ryther a.o. (1967) that the outflow of the Amazon mixes fast with the Guyana current seems to be right. The variation in average length of two Coscinodiscus species in relation to hydrographical circumstances neither gave further information about different watermasses (Fig. 24 and 25). Noteworthy is the relation that seems to exist between the length of both species and the salinity and Si-content of the sample. Coscinodiscus asteromphalus Ehr, has greater cells at a high salinity and smaller cells with increasing Si-content. With Coscinodiscus concinnus Schm. the relation is more clear, but just the reverse. About the situation in the eastern Caribbean hardly any information can be offered. The sampling method was too incomplete. In October primary production is found in the Gulf of Maracaïbo. The quantity of settled material in these regions is considerably lower than off the coast of the Guyanas. During the whole year blue algae and dinoflagellates are dominant (Fig.37). Only in the sample of 18 June Chaetoceros was dominant. This indicates the oceanic character of the region. A total impression of the samples shows a production period in January and in August-October.

Beschreibung: Owing to their limited possibilities for either active or passive dispersal, their association with the soil habitat, their vulnerability towards a dry atmosphere, and, in fact, on account of their general ecology and ethology, Diplopoda among arthropods are surely one of the most important classes in relation to the study of historical biogeography. For the class as a whole the sea appears to be an unsuperable barrier as is proved by the almost complete absence of endemic taxa on oceanic islands. In many cases lowland plains also act as severe obstacles against the dispersal of millipedes. The presence or absence of diplopods on islands or continents, therefore, may give a strong argument in favour or against any supposed former land connection. The long geographical isolation of the Australian continent and the absence of endemic higher taxa seems to imply that most, if not all, of its diplopod fauna dates from the time this continent was solidly attached to other southern continents, i.e. the Mesozoic. Subsequent penetration of fauna elements from the north or northwest seems utterly unlikely, although perhaps not entirely impossible.

Beschreibung: Although the corals and reefs of Curaçao are fairly well known (VAN DER HORST 1927, Roos 1964, 1967), information about coral growth around the other islands of the Netherlands Antilles is still lacking. This paper offers the first comprehensive study of the reef corals of this area: Aruba, Curaçao (with Klein Curaçao), Bonaire (with Klein Bonaire), St. Martin, Saba and St. Eustatius. Due to practical reasons, however, the survey had to be restricted in several respects.

Beschreibung: Au printemps 1929, j'entrepris de dresser la carte d'une partie des Alpes Bergamasques, partie limitée à l'Est par celle que Jong a traitée. La frontière méridionale est formée en partie par la Valsassina jusqu'à Cortenova, en partie par la faille du Val Torta-Baiedo (Baiedo se trouve à 1½ km au SSW d'Introbio). De Cortenova à Premana le Val Rossiga et le Val Marcia séparent mon terrain de celui de mon collègue Buning. Vers le Nord il s'étend jusqu'au Val Varrone et jusqu'à la crête qui va vers la Bocchetta di Trona, en passant par le Pzo. Cavallo et le Pzo. Melasc. Diverses circonstances ne m'ont permis de terminer mes travaux de mise en carte définitive qu'au cours de l'été 1931.

Beschreibung: Species of the genera Tylos Latreille and Ligia Fabricus from the New World are recorded and knowledge of their distribution and systematics is summarized. Tylos marcuzzii Soika is redescribed with new illustrations. Ligia callani Collinge is reduced to a synonym of L. platycephala Van Name. New distribution records in the Caribbean and other regions are given for species of the two genera.

Beschreibung: 1. Cassiopea xamachana is unable to tolerate any wave action, turbulence or currents. 2. Although the species is found only in shallow water where the light intensity is high, it could not be demonstrated that light intensity is an important factor. 3. Normal temperature fluctuations — at least in the Antilles — are of no significance as the range that Cassiopea under laboratory conditions proved to be able to withstand is wider than the fluctuations occurring in their natural environment. On the other hand, after heavy rainfall when the pools are covered with fresh water the bottom water temperature may rise to deleterious levels. 4. The salinity range in the habitat of Cassiopea is from about 33‰ to 54‰. When the regeneration rate is used as a parameter for optimum salinity conditions, supersaline water of about 40‰ is optimal, which is about the average salinity in their natural habitat in Curaçao. In the Dry Tortugas, where the salinity is lower, optimum regeneration occurs at a lower salinity level, as reported by GOLDFARB, 1914.

Beschreibung: The number of fossils that have been described from the Netherlands Territory in America is not very large. The descriptions are, however, scattered over a rather large number of publications, many of which will be found only incidentally by a reader who occupies himself intensely with the geological literature on the Antilles. It has therefore seemed to me to be a useful work to gather the data on these fossils as completely as possible, and the making of this catalogue has been especially agreeable to me, as a very large part of the fossils under discussion have been collected by Prof. Martin, in whose honour this book is edited. Some remarks may precede the catalogue.

Beschreibung: Phillipsia? parvula Beyrich. — Perm. Timor, lit. 1, p. 87, t. 2, fig. 17a, 17b; Perm. Timor et Rotti, lit. 3, p. 89. Neoproetus indicus Tesch. — Carbon. Sumatra, lit. 11, p. 1082; lit. 30, p. 6; lit. 37, p. 610; Perm. Timor, lit. 38, p. 128, t. 178 (1), fig. 1—5.

Beschreibung: Recent investigations of the distribution of trace elements in metamorphic index minerals of metapelites have revealed, that the plurifacial character of the Hercynian metamorphism in this area is confirmed by the distribution of Yttrium in Hercynian garnets of the metamorphic series.

Beschreibung: The formation of thick piles of flysch-like sediments needs the existence of narrowed seas, active denouement of neighbouring continents, and generalized marginal subsidence. These conditions are present during the initial and final stages of Wilson’s perceptive cycle. In this context, the Late Precambrian flysch of the Iberian Massif must be related to the initial rifting, whilst the Culm of southwestern Iberia was accumulated during an episode of Upper Palaeozoic subduction that remained active after the impingement of Iberia against North America. Culm sediments shed from the uplifted collision zone and fed into a remnant ocean that remained at the nonsutured southern border of Iberia. This model of synorogenic flysch formation has been described elsewhere for similar plate arrangements. On other grounds this model provides a framework that explains the different structural and magmatic trends of the Ossa-Morena Zone (near the active margin) in the context of the rest of the Massif (basement reactivation). In addition to this, it seems to support a partly primary origin for the Iberian arc versus a secondary origin.

Beschreibung: Notwithstanding the fact that representants of this group were already known to Prof. C. G. Ehrenberg, the great micropaleontologist of the first half of the 19th century and subsequent authors have mentioned them from various localities, they have remained almost unknown. Their organic nature too has not always been recognised. In 1843 Prof. Ehrenberg referred them to his group „Polygastern” with the name Actiniscus; in his „Microgeologie”, however, they were considered as inorganic bodies and mentioned as „Crystalldrusen"", „Seheibensternchen"" or „Crystalloids"" (Bibl. 2, p. 115, p. 156, etc.). Very accurate descriptions of these forms are given by Mr. Hill from Barbados, where they are found in the calciferous oceanic deposits lying under the famous Radiolarian deposits in the marls directly overlain by the raised coral reefs (Bibl. 4, p. 177 & 216). He called them „crystalloids"".

Beschreibung: The Lois-Ciguera Formation is a unit of alternating limestones and terrigenous sediments of Lower to Upper Moscovian age in the Cantabrian Mountains of northern Spain. The proportion of limestones is fairly high, 30 to 50% of the total thickness. In the eastern part of the Lois-Ciguera Synclinorium, the formation consists almost exclusively of limestones. One section (LSW) is selected to serve as a model for the depositional and diagenetic textures of the limestones of the entire formation. More than 80% of the limestones appear to be algal-bound. Description and subdivision of these algal boundstones was possible by a modification of the classification scheme of Dunham (1962). The algal boundstones are classified as algal-bound lime mudstones, algal-bound lime wackestones and algal-bound lime packstones. Algal-bound lime wackestones and algal-bound lime packstones appear to be the most important. The first are thought to have been formed on the floor of a quiet lagoon by precipitation of algal micrite in the hairy masses of non-calcareous Algae (pseudostromata bioherms). Among the algal-bound lime packstones, three groups can be distinguished: (1) those formed by intergrowth of calcareous Algae (calcareous Alga bioherms), (2) those representing carbonate sand from littoral or lagoonal settings invaded and bound or agglutinated or entrapped by non-calcareous Algae, (3) those intermediate between groups (1) and (2). The bioherms of calcareous Algae are thought to have formed at a depth ranging between low tide level and ca. 12 m in an environment of variable turbulence. Neomorphism of algal-bound micrite is distinct from neomorphism in mechanically deposited micrite because of the interaction of pore-filling calcite in the originally porous algal micrite sustained by an organic framework. Several generations of pore-filling calcite can be distinguished. Complete filling of the pores with calcite may have occurred during an epidiagenetic interphase during syndiagenesis. There are indications that dolomitization was syndiagenetic. Both the capillary action/evapo-transpiration theory and the theory of a refluxing hypersaline brine may provide explanations which fit the conditions of formation of the LSW dolomitic limestones (dolomite content of 5 volume percent or more). The low dolomite content of 5 volume percent or less of the LSW limestones is explained by neomorphism of the originally high-magnesium algal micrite during cementation. Calcitized dolomite crystals and diagenetic silica are commonly observed together in the LSW limestones. It is shown that silicification is the cause of calcitization of the dolomite crystals. The origin of the diagenetic silica is ascribed to the ability of living algal mats to hold considerable concentrations of silica in solution in their interstitial waters. The silica is precipitated during early burial of the algal-bound sediment and goes into solution again during cementation of the limestones. Reprecipitation of the silica occurs after sharp-edged fracturing. Several phenomena of carbonate solution are described. Void creating solution is confined to limestones supported by an algal framework. At present all original pores and voids in the LSW limestones are filled with calcite and the porosity is low. The sequence of diagenetic changes has been analyzed and summarized separately for LSW limestones with an epidiagenetic interphase during syndiagenesis and those lacking an epidiagenetic interphase.

Beschreibung: Following the example of Professor K. Martin I have as far as possible used the subdivision given by P. Fischer in his „Manuel de Conchyliologie et de Paléontologie Conchyliologique”. For the stratigraphy I used the system of E. Haug: „Traité de Géologie”. Following the general custom, however, the Rhaetian is counted to the Trias and the Berriasian as formation parting the Jurassic from the Cretaceous.

Beschreibung: Die Geologie des ostindischen Archipels hat im Laufe der letzten Jahrzehnte so beträchtliche Fortschritte aufzuweisen, dass es von Jahr zu Jahr schwieriger wird, den neuen Tatsachen und Erkenntnissen zu folgen. Auch die Stratigraphie der mesozoischen Ablagerungen dieses ausgedehnten Gebietes hat sich so rasch weiter entwickelt, dass selbst die neuesten stratigraphischen Uebersichten in den bekannten, zusammenfassenden Werken von Brouwer (21) und Rutten (86) heute in manchen Teilen schon wieder veraltet sind. Eine erneute Zusammenfassung dürfte daher nicht ohne Nutzen sein. Aus diesem Grunde bin ich gerne der Aufforderung nachgekommen, diese Aufgabe hier zu übernehmen, beschränke mich aber auf die Wiedergabe des heute vorliegenden Tatsachenmaterials, so verlockend es auch wäre, weitergehende Schlüsse daran zu knüpfen. Gelten doch die Worte, die K. Martin vor 24 Jahren geprägt hat, als er in seiner Schrift „Mesozoisches Land und Meer im Indischen Archipel” die erste Uebersicht über diesen Gegenstand veröffentlichte, trotz aller späteren Fortschritte auch heute noch in fast gleichem Umfange wie damals: „Das vorliegende Material genügt nicht einmal für eine rohe Skizze; denn das ausgedehnte Gebiet ist noch viel zu oberflächlich untersucht und namentlich sind negative Merkmale, aus dem Fehlen dieser oder jener Formation hergeleitet, vorläufig nur mit grösstem Vorbehalt zu verwenden.”

Beschreibung: Im Folgenden werden alle Arten, die ich in der Literatur beschrieben oder auch nur erwähnt fand, systematisch aufgezählt. Da es sich fast nur um mehr oder weniger unvollständige Röhren von Würmern handelt, lohnt es sich nicht, einzeln anzugeben, was für Reste vorliegen, so angebracht dies sonst erscheint. Noch lebende Formen sind mit einem * bezeichnet; nach meiner Ansicht fragliche mit (?).

Beschreibung: Dr. Ernst Frederik Jacobi, who was a member of the Editorial Board of this journal for exactly 20 years, reached the age of 65 on September 11, 1973 and retired. Dr. Jacobi was appointed Director of the Amsterdam Zoo (officially: of the Royal Zoological Society “Natura Artis Magistra”) on April 1, 1953, in succession to Dr. A. L. J. Sunier. The function of Director of the Zoo automatically means also the membership of the Editorial Board of “Bijdragen tot de Dierkunde”. This periodical was published by the Royal Zoological Society until vol. 28 of 1949 (the last volume edited by Dr. Jacobi’s predecessor), but owing to the difficult financial situation of the Society, its publication was interrupted from 1949 to 1959, when vol. 29 appeared. From this volume onward, the “Bijdragen” appeared at regular periods, first once a year, later twice a year; also, the periodical was no longer published by the Royal Zoological Society solely, but by a committee (called so beautifully the “Board of Supervisors on the Management of the Artis Library”, the Artis Library being the library of the Society, though since 1938 chiefly managed by the University of Amsterdam).

Beschreibung: Larvae of the crabs Menippe mercenaria Say (Menippidae), Panopeus herbstii Milne-Edwards, Neopanope sayi Smith (Xanthidae), Sesarma cinereum Bosc (Grapsidae), and Libinia emerginata Leach (Majidae) were reared in the laboratory. Starvation periods different in length and timing within the first zoeal stage were studied as to their effects on later development and survival rate. After 1-3 days of initial feeding, most larvae had accumulated enough reserves to reach the second stage, independently of further food availability. The development of the survivors was delayed in the following stages, and their later mortality rate was higher than the fed controls. Starvation periods commencing directly after hatching of the larvae exert far stronger negative effects than those beginning later. All observations suggest a particularly sensitive phase in the beginning of larval life in brachyurans. When initial starvation periods exceed the point-of-no-return (PNR), the larvae will die later, even if feeding begins long before the energy reserves are depleted. Temporary lack of suitable prey may be an ecological factor controlling the survival of crab larvae as effectively as physical factors.

Beschreibung: Resistance to starvation in early larval stages of six species of brachyuran crabs representing four families was observed at various constant temperatures. In the optimal temperature range of 25-30°C for these warm temperate crab larvae, survival time of starved zoeae was longer than the development duration time in fed zoeae, while at lower temperatures the relationship of these two duration periods became inversed. This response pattern is found in larvae of the mud crab Rhithropanopeus harrisii and is considered to be typical for warm temperature brachyuran larvae. It indicates that reserved utilization is strongly controlled by temperature, but not to the same degree as development.

Beschreibung: Early diagenetic ultrastructural alterations of benthic foraminifers of the genera Elphidium and Ophtalmina from the shallow water sediments of the Kiel Bight were investigated by scanning electron microscopy. Pure solution patterns were deduced from supplementary experiments.Several carbonate destroying processes can be specified by ultrastructural patterns of the shell surfaces. Based on these patterns three zones are established, each showing different mechanisms of shell fragmentation: 1) zone of abrasion, 2) zone of disintegration, 3) zone of corrosion. This zonation depends on the water depth and is caused primarily by water agitation and by undersaturation of the bottom water with respect to carbonate.

Beschreibung: The influence of starvation on larval development of the spider crab H. araneus (L.) was studied in laboratory experiments. No larval stage suffering from continual lack of food had sufficient energy reserves to reach the next instar. Maximal survival times were observed at four different constant temperatures (2°, 6°, 12° and 18°C). In general, starvation resistance decreased as temperatures increased: from 72 to 12 days in the zoea-1, from 48 to 18 days in the zoea-2, and from 48 to 15 days in the megalopa stage. The conclusion, based on own observations and on literature data, is that initial feeding is of paramount importance in the early development of planktotrophic decapod larvae. Taking into account hormonal and other developmental processes during the first moult cycle, a general hypothesis is proposed to explain the key role of first food uptake as well as the response pattern of the zoea-1 stage to differential starvation periods.

Beschreibung: The palynological assemblage from Lettenkohle deposits near Ucel (Ardèche, France) can be matched with those from Karnian deposits in the Austrian Alps. The occurrence of Camerosporites secatus suggests a correlation with the Middle Upper Triassic (Karnian) of the North Sea Basin. The Ucel assemblage shows striking differences to a palynological assemblage obtained from Lettenkohle deposits near Crussol (50 km North-East of Ucel).

Beschreibung: It is demonstrated that the characters which sofar have been considered to be typical for the subgenus Pachyfissidens are also found in several species which on good grounds are included in the subgenus Fissidens. Therefore Pachyfissidens can not be maintained as a subgenus; however, on account of a certain similarity in habit caused by the thickness of the leaves and on the ground of the fact that in all its species a central cylinder is normally lacking, Pachyfissidens is retained as a section. F. rochensis Broth., a species formerly placed in Pachyfissidens is transferred to the section Bryoidium.

Beschreibung: Data on structure and chemistry of oil bodies are being provided for twenty species of leafy Hepaticae, most of them belonging to Lejeuneaceae. Oil bodies are described as new for Symbiezidium, which stands out among Lejeuneaceae by its large, Bazzania-type oil bodies. The observed occurence of segmented as well as homogeneous oil bodies in Archilejeunea and Dicranolejeunea constitutes a further break-down of what was generally considered a stable generic character in Lejeuneaceae. Detected chemical compounds include a large number of unidentified terpenoids. Sesquiterpene lactones, traditionally considered important chemical markers for Frullaniaceae, were newly detected in Lepicolea (Lepicoleaceae), Clasmatocolea (Lophocoleaceae) and Omphalanthus (Lejeuneaceae). Of particular chemotaxonomic interest is the discovery of large quantities of pinguisane-type sesquiterpenes in Brachiolejeunea subg. Plicolejeunea, Trocholejeunea and Acrolejeunea, corroborating the close morphological relationship among these three groups, as well as the occurence of two morphologically and chemically distinct races in Gongylanthus granatensis. Obeserved intraspecific chemical variation in Marchesinia brachiata is considered dubious and possibly related to the different states of preservation of the material. Further taxonomic notes include new synonymy in Dicranolejeunea (D. cipaconea (Gott.) Steph. = D. circinnata (Spruce) Steph. syn. Nov.) as well as a key to the five Andean species of Omphalanthus Nees. The morphological circumscription of Omphalanthus is expanded by the inclusion of Brachiolejeunea paramicola Herz. (= O. paramicola (Herz.) Gradst. comb. nov.), characterised by the pluriplicate perianth.

Beschreibung: Plants grown up from seeds collected in the wild were cultivated in the experimental garden. These plants were investigated cytologically and morphologically. They turned out to be tetraploids with 2n =44 chromosomes. This is the same number as reported by Fagerlind (1937) in material from unknown origin and by van Loon (1974) in plants from Lanzarote, the Canaries. The metaphase-plates of roottip mitosis have a regular pattern, but some difference in length of the chromosomes can be observed. B-chromosomes or satellites are not present (fig. 10.5).

Beschreibung: Descriptions and photographs of oil-bodies of Lopholejeunea subfusca, Marchesinia brachiata, Archilejeunea parviflora, Taxilejeunea asthenica, Echinocolea asperrima, Mastigolejeunea auriculata, Cheilolejeunea clausa and Stictolejeunea squamata are given. From the latter species sporophyte characters are reported for the first time.

Beschreibung: This paper deals with the Vanguerieae, Cinchoneae, Condamineae and Rondeletieae, and concludes a study on the anatomy of the secondary xylem of the Cinchonoideae + Ixoroideae. The taxonomically homogeneous Vanguerieae show only little variation. Taxonomically the Cinchoneae, Condamineae, and Rondeletieae, placed near each other in the Cinchonoideae, are rather heterogeneous. Their woods show also more anatomical differences, with a similar scala of variation within each tribe. Numerical analysis of the pattern of variation was undertaken. Cluster analysis showed a very distinct bipartition, which remained almost invaried while calculations were executed with different character weighings. This bipartition is not expressed in the existing taxonomic classifications. An attempt to distinguish the three tribes on the basis of their wood anatomy was made, but was unsuccessful.