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: 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 In a discussion of the greenlandic distribution, unpublished records from the herbarium of Copenhagen (C) are incorporated.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: 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: 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: 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: 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: 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: 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: 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: The new species Coussapoa manuënsis C.C. Berg is described.

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: IUCN, says the paper Categories, Objectives and Criteria for Protected Areas, ”is dedicated to the wise use of the Earth’s natural resources and to the maintenance of the Planet’s natural diversity.” What to think of the sequence? Use first, maintain second? And this comes from the International Union for the Conservation of Nature and Natural Resources? ”The World National Parks Congress, taking place in Bali, Indonesia, October 11-22, 1982, will provide case studies from around the world to illustrate how the various categories of protected areas are meeting the needs of countries of all economic, social, cultural, and political backgrounds,” writes J.A. McNeely, the secretary of the Commission on National Parks and Protected Areas, in a special issue of the Swedish journal Ambio (11: 237. 1982). ”No longer just playgrounds for vacationers and means for conserving natural heritage, protected areas have become an inseparable part of the modern human ecosystem.”

Description: The entries have been split into five categories: a) Algae — b) Fungi & Lichens — c) Bryophytes — d) Pteridophytes — e) Spermatophytes & General subjects. — Books have been marked with an asterisk. The SEM-observation of plant material normally requires dehydrated, dry specimens coated with carbon or metal. Unfortunately, the standard drying methods (including the critical-point-drying-technique) often cause shrinking and deformation of the specimen surface; therefore, SEMstudies on plant ontogeny are rather difficult, material- and time-consuming. Experiments using deep-frozen specimens have been carried out in England and in the USA, but have proved not satisfying.

Description: Mrs. Delia D. Adefuin, Museum Research Assistant, Manila, is pursuing her M.S. in Botany degree. She is currently the Secretary of the Fern Society of the Philippines. She is working on the Fern Flora of Metro Manila and is preparing the manuscript of a pictorial encyclopedia which will include descriptions of species and horticultural recommendations. Miss Barbro Axelius (S) collected and studied Xanthophytum and Lerchea (Rubiaceae) in Sarawak, Kalimantan and Sumatra, August 1982- February 1983.

Description: Tropical Botany in Aberdeen University. This was started by Professor J.W.H. Trail, who held the chair from 1877 to 1919, and travelled in the Amazon Valley (1873-75) mainly collecting cryptogams and studying palms. He was succeeded by Prof. W.G. Craib (1920-33) who was never in the tropics but devoted his work to the Flora of Siam, based on the collections of A.F.G. Kerr, and assisted by Miss E.C. Barnett. After a considerable lag, tropical botany was revived by the energetic efforts of Dr. P. Ashton as lecturer in systematics and ecology of the eastern tropics, establishing ties with Malayan colleges in teaching and research. This is at present perpetuated by two lecturers, Dr. K. Jong and Dr. M.D. Swaine, the latter’s experience lying largely in the tropics of West Africa. In addition Dr. N.M. Pritchard, Dr. J.B. Kenworthy and Dr. G. Hadley have been on secondment to the University of Malaya, while Dr. I. Alexander made research visits to India, Ghana and Peru. Over the years the Department has provided undergraduate and research training to innumerable students from many different tropical countries, some of which attained responsible posts, e.g. Prof. E. Soepadmo. Important courses in tropical biology are given, not available elsewhere in the U.K. (started 1973). The benefits for Aberdeen students is important: amongst others they led to expeditions to various parts of the tropics, recently to Sabah and to the Ivory Coast. Royal Society Tropical Rain Forest Collaborative Research Programme. Arising out of a feasibility study by Dr. T.C. Whitmore and P.F. Cockburn, the theme ’Recovery of tropical rain forest after disturbance’ was adopted as the initial basis of the programme. Possible territories for the research include Sabah and the Philippines. Detailed plans for a 5-year project are being prepared in consultation with colleagues in Southeast Asia.

Description: It is with the utmost regret that we announce the sudden and quite unexpected death of Dr. Marius Jacobs, editor of this Bulletin. See the obituary on page 3869. He was co-editor of the Flora Malesiana Bulletin for nr. 17 (1962) to nr. 22 (1968) and took full responsibility onwards of nr. 27 (1974). He showed great ability in enlarging its scope and we have many letters in our archives expressing appreciation and admiration for the lively and informative style in which he edited the Bulletin. I had to take over the editorial work for this number at short notice, but I was greatly helped by a number of Rijksherbarium colleagues, which help is gratefully acknowledged. In this way the delay has been kept to a minimum. It is, however, possible that some news items etc. have not been printed and that information submitted to Dr. Jacobs has not been entered due to this sudden change of editorship. I offer my apologies if this has happened and hope that (if still relevant) the news will again be forwarded to the new editor, Dr. J.F. Veldkamp, Rijksherbarium, who will take over starting next number.

Description: Apocynaceae wanted — pickled. Mary E. Fallen, Systematische Botanik, Zollikerstrasse 107, CH-8008 Zürich, Switzerland, who has done considerable morphological work on development of the reproductive organs in Apocynaceae, has been frustrated in her many efforts to obtain suitable material of Lepinia and Lepiniopsis. Ample information on both can be found in Pacific Plant Areas 3, Blumea Suppl. 5 (1966) 112-113, with map and description. The very oddly shaped fruit of Lepinia (W. Pacific) has been depicted in Blumea 11 (1962) 302, Van Steenis’s paper on the Land Bridge Theory. The one of Lepiniopsis (E. Malesia) seems to be buoyant. Also material of Anechites (Central America) is needed; it may be closely related to Condylocarpon. Any stages of flowers can be used, from tiny green buds at initiation up through anthesis, as well as fruiting stages. They should be pickled in FAA. Expenses of handling and postage will gladly be refunded. Vials with the liquid can be provided. Thanks on her behalf!

Description: The Botanical Survey of India continued to make collections during 1982, with the following results: Andaman & Nicobar Is.: Shola Bag, Mt Harriet, Jirkathang, Poona Nallah, Saddle peak, Diglipur, Rutland I. & Little I., 2875 specimens. Arunachal Pradesh: Various areas of Kameng Distr., Subansiri Distr., 9750 specimens. Assam: Garampani, 60 specimens. West Bengal: Darjeeling, Jalpaiguri, Hollong, Jaldapara, Chilapata, Salkumar, Daidaighat, Barasat, 2665 specimens. Bihar: Madhuban, Nimiaghat, Paresnath Hills, 315 specimens. Dehra Dun: Chakrata, Missoori, 325 specimens. Gujrat: Catchment and submergence areas of Sipu Reservoir Project, 1505 specimens. Kerala: Trichur, Idduki, Silent Valley, Valra Reserve Forest, Cannanore, Trivandrum, 3770 specimens. Madhya Pradesh: Kanha National Park, Chhodarpur Distr., 1190 specimens. Maharashtra: Areas of Jalgaon Distr. and Buldhana Distr., 4390 specimens. Manipur: Cherrapunjee, Mawphlong, Sorharim, areas of West Khasi Hills Districts, 2000 specimens. Rajasthan: Bharatpur, Desert National Park, 1605 specimens. Sikkim: Rangpo, Singtham, Bumbing, Manuring, Duga, Pandam, Takchi, Meli, areas of Gangtok, Chungtham, Lachi, Thanga, Panthang, 2590 specimens. Uttar Pradesh: Gori & Kali Valley, Chittoragarh Distr., 500 specimens.

Description: The ultrastructure of the spore walls of Beenakia dacostae (Beenakiaceae, Gomphales) has been studied. Spore walls are mainly composed of a distinct episporium and a thick, dark, ornamented ectosporium. The general structure is identical with that of other members of the Gomphales, such as Gomphus and Ramaria

Description: In Malesia the genus Tephrosia is represented by 20 species, native or introduced and naturalized, including 6 subspecies and 5 varieties; 4 species are restricted to Malesia. Two of these species are newly described: T. barbatala and T. elliptica; the former includes one new variety (var. glabra). Two new subspecies and one new variety are distinguished: T. filipes subsp. longifolia, T. purpurea subsp. barbigera, and T. maculata var. elongata. Two taxa are given a new status: T. maculata var. appressepilosa and T. pumila subsp. aldabrensis. Four species, T. dichotoma, T. repentina, T. coarctata, and Kiesera sumatrana are for the first time sunk into synonymy. A key to the taxa, synonymy, and full descriptions with plates and distribution maps are given.

Description: During identification and study of the materials of the genus Blepharis Juss. in the Central National Herbarium (CAL) of the Botanical Survey of India the authors came across some specimens (Lawson 314) from Tavancore, which was identified as B. molluginifolia aff But critical study revealed that the typical molluginifolia is a different species from which the new taxon can be distinguished by several characters. The species is named after M.A. Lawson who collected the specimen for the first time.

Description: One new species of Aristolochia, A. singalangensis, from Sumatra is described here. This is the only Malesian species to have the fruit dehiscing from the apex towards the base. Remarks are given for some Asiatic and Malesian species, all belonging to Aristolochia except one to Thottea, on their taxonomy, nomenclature, typification, characteristics for identification, relationship, distribution, etc. The phenomena and significance of aristolochiaceous plants-butterflies relationship have been discussed. Germinated pollen grains have been found in dehisced anthers of open flowers in both Aristolochia and Thottea. Pollination of the Aristolochiaceae has been concisely reviewed.

Description: Twelve species are recognized of which five (P. womersleyi, P. brassii, P. hooglandii, P. schoddei. and P. clemensae) are described as new. Nine species are reduced to synonymy (P. warburgii, P. puberula, P. myriantha, P. paniculata, P. parvifolia, P. acuminata, P. habbamensis, P. pulchra and P. dallmannensis). All twelve species occur in New Guinea, only one (P. arfakiana) extending westwards into Sulawesi. P. incana, P. gracilis and P. hypargyrea may also occur in Queensland in addition to the three species already described from Australia.

Description: Two gynoecial primordia are initiated as discrete units but soon get interconnected by the occurrence of interprimordial growth between them. A rim of meristematic tissue thus produced gives rise to the ovary wall by zonal growth. The residual floral apex grows parallel to the gynoecial primordia in the form of a septum. The two placental ridges arise from the inner lateral walls of the ovary, grow into the ovarian cavity, and ultimately fuse with the axial septum. The anterio- posterior region of the ovary wall also grows into the ovarian cavity to form a false septum which divides each locule into two. The Labiatae show a placentation which is neither true axile nor true parietal but an intermediate condition between the two, as the septum grows like in a typical axile placentation and the placentae like in typical parietal placentation. The gynobase in Labiatae is considered to be carpellary in nature.

Description: Two new genera and nineteen new species of Dicotyledons from Papua New Guinea collected and described by A. Gilli (1980) have been examined by specialists. These families are Begoniaceae, Cruciferae, Elaeocarpaceae, Euphorbiaceae, Hypericaceae, Leguminosae, Rosaceae, Rubiaceae, Saxifragaceae, and Sterculiaceae. Both new genera are reduced: Melachone to Amaracarpus (Rub.), Disaster to Commersonia (Sterc.). Supposed new generic records to Malesia proved erroneous: a new Thelygonum belongs to Nertera (Rub.), and a Trochiscus to Nasturtium (Cruc.); the Viburnum from Papua is a Psychotria (Rub.). All species are reduced to those already known. It is advocated as undesirable to describe novelties from odd tropical plant collections.

Description: There are only two genera of the Aristolochiaceae, Aristolochia and Thottea, so far known to occur in Malesia. In the course of a revision of this family for the Flora Malesiana, some new species of both genera have been found. Eight new ones of Thottea were published in a precursor on that genus (Blumea 27, 1981, 301-332, f. 1-72). There are four new species of Aristolochia from Borneo and one more new Thottea from Sumatra to be described here.

Description: The genus Badusa is transferred from the Cinchoneae to the Condamineae subtribe Portlandiinae: it is closely related to Morierina. A new species B. palawanensis is described from Palawan, and a new subspecies from Biak, B. corymbifera ssp. biakensis.

Description: Sericolea is a genus endemic to New Guinea. The relevant literature is surveyed. Descriptions are given of all species and keys provided to the 15 species and all infraspecific taxa accepted. Two species are described as new: S. coodei and S. microphylla. A new subspecies of S. brassii A. C. Sm. is recognized: ssp. carrii. S. arfakensis Gibbs, S. gracilis (Laut.) Schltr., and S. novoguineensis Gibbs reduced by Coode in a recent paper are reinstated and S. glabra Schltr.. also reduced by Coode, is recognized as a variety of S. micans Schltr. Three new varieties are distinguished in S. gaultheria (F. v. M.) Schltr. and one in S. novoguineensis Gibbs.

Description: Carpels develop centripetally as oblique slightly ascidiform structures provided with a seat-like support. The terminal mouth of the ascidiform primordium becomes the lateral cleft of the carpel. Solitary terminal carpels develop as lateral structures. The sections Tasmannia and Drimys of the genus Drimys differ by the varying degree of ascidiform development. Austrobaileya is like Drimys. The structure of the carpel margins with submarginal placentation may have evolved from a slit like that in Winteraceae. Allometric development of an oblique ascidiform structure may have formed a large basal ovary, and may thus have moved the stigmatic part apically. A possible cupular origin of carpels is discussed.

Description: The present study deals with the taxonomy of a family of the brown algal order Sphacelariales in Europe. The taxonomy of this order is much influenced by the works of Sauvageau as published between 1900 and 1914. A short survey of the work on Spacelariales by him and his phycological predecessors is given in the introduction. The order Sphacelariales is described and its nomenclatural history is given. Other paragraphs deal with distribution, morphology and the used descriptive terminology, ecology, variability and culture studies, reproduction and life-history, systematic position and classification. In the notes on morphology the history of the descriptive terminology is incorporated, as well as discussions on the correct use of this terminology. Most technical terms are also included in the glossary, located near the end of this book. In the sections on ‘Form range and cultures’ and on ‘Reproduction and life-history’ the methods used for unialgal cultures and methods for chromosome counts are discussed. Also a review of life-histories in Sphacelariales is incorporated, as well as a discussion on the criteria used for the distinction of taxa and the delimination of the order. A key to the families concludes the treatment of the order. The family Sphacelariaceae, which is the largest and most cosmopolitan family of the order, is treated in a similar way. The two genera in this family, the monotypic genus Sphacella and the complex genus Sphacelaria, which contains four subgenera, seven sections and 16 species in Europe, are also treated in comparable paragraphs. Keys to the taxa and to ecological growth-forms (ecads) are given. In the paragraph on relationship of genera, subgenera, sections and species, several approaches for the construction of a classification are mentioned. The phyletic-cladistic approach, based upon methods developed by Hennig (1950), is discussed in detail. One conclusion is that the genus Choristocarpus cannot be considered to belong to a monophyletic group together with the Sphacelariaceae. Further it can be concluded that the Sphacelariaceae all belong to one group with a monophyletic origin. The monotypic genera Battersia, Disphacella and Chaetopteris have to be included into the genus Sphacelaria. Sphacella, however, is maintained as a monotypic genus. For nomenclatural reasons Sphacelaria reticulata (formerly Disphacella reticulata) must be chosen as type-species of the genus Sphacelaria. The descriptions of family, genera and sections are usually short, but the descriptions of the species are comprehensive and contain a formal description and a list of dimensions. The paragraphs on distribution start with summaries of coastal regions where the species occur. Each summary is followed by an extract of the list of collections and relevant references. Distribution maps are added. Full lists of collections and references for all species are published separately. Important taxonomic conclusions occur in Sphacelaria reticulata (was Disphacella reticulata (Lyngb.) Sauv.), in S. radicans (ecad libera found in the Baltic), in S. nana (= S. britannica Sauv.) which include S. saxatilis and which is different from S. rigidula (= S. furcigera Kütz.), in S. plumigera (unattached growthform = ecad pinnata, found in the Baltic), in S. mirabilis (was Battersia mirabilis Reinke ex Batt.), in S. fusca (different from S. rigidula), in S. cirrosa (includes S. bipinnata (Kütz.) Sauv. and S. hystrix Suhr ex Reinke which are incorporated amongst the five different ecads of the species) and in S. sympodiocarpa (which cannot be incorporated into one of the described subgenera). Most details of morphology are depicted.

Description: The buthid scorpions of the genus Centruroides are widely distributed in the Antillean area. They are also the most common scorpions in the majority of these islands. Nevertheless they remained almost forgotten until recently (STAHNKE 1970; ARMAS 1976, 1977, 1980, 1981, 1982; FRANCKE & SISSOM 1980). For the purpose of this paper the Lesser Antilles are defined as the islands situated between the Virgin Islands and Trinidad & Tobago, according to BOND’S 1978 zoogeographical point of view.

Description: During the Late Devonian, deposition in the Cantabrian Mountains was largely controlled by movements along faults. By way of intermitting subsidence of the area south of the Sabero-Gordón line and the connected progradation of the coast during the Frasnian and early Famennian, three regressive sequences were deposited. On account of these sequences the Nocedo Formation is divided into three units. Before the late Famennian transgression, after which the upper part of the Ermita Formation was deposited, the area was peneplained. Six facies maps show the changes in palaeogeography during the Late Devonian.

Description: The area described comprises the SE plunging extension of the anticlinorium of Mondoñedo-Lugo-Sarria and several structural units to the NE of it. The stratigraphy compares with that of neighbouring areas. Certain new observations have been made regarding the west flank of the East Galician-West Asturian miogeosyncline at the end of the Precambrium and during the Early Palaeozoic. Stromatolites or algae played an important part in the formation of carbonate deposits during late Precambrian (Cándana limestone) and Lower Cambrian time (Vegadeo limestone). An imprint, possibly attributable to a specimen belonging to the Precambrian Ediacara fauna, was found in the Cándana Schist Formation. A shallow or relatively high zone existed during that time in the region around Incio. The same general area formed a high again at the end of the Ordovician, causing erosion and a marked disconformity of the Silurian. The Hercynian structures can be explained by assuming roughly WSW-ENE compression and shortening. In the NW of the area this is expressed in the first place by the recumbent folds of the Lugo-Sarria anticlinorium, and in the SE by the narrowness of the steep folds and their slightly changed direction in the general area of Seoane and El Cebrero. Normal crossfaults are related to the folding and the compression. They show locally a deviation in accordance with the direction of shear stress. Horizontal displacement along such faults in an EW direction was probably of little importance. Finally a few observations are given on the occurrence of Pb-Zn ores at the mine of Rubiales.

Description: Species of the heteropod families Carinariidae and Pterotracheidae collected in the Mid North Atlantic Ocean in 1980 have been studied. The distribution of the species is given, as well as the morphological variation. It is concluded that two subspecies of Carinaria lamarcki actually have to be considered distinctly recognisable and sympatric species, to be called C. lamarcki and C. challengeri. The vertical distribution of the heteropods studied proves not to be restricted to the photic zone and diurnal vertical migration occurs among the larger species. The horizontal distribution of the two Carinaria species and of at least two populations of the Pterotrachea species coincides with the southern branch of the North Atlantic Current, while others are restricted to the subtropical waters. Consequently, the present heteropods have to be considered good indicators of water masses and currents.

Description: Moult cycle and morphogenesis in larval instars (zoea I, zoea II, megalopa) of the spider crab Hyas araneus were studied in the laboratory. Changes in the epidermis and cuticle were documented photographically at daily intervals to characterize the stages of the moult cycle. Stage A (early postmoult) is a very short period during which the larva takes up water. During late postmoult (B) and intermoult (C) the endocuticle is secreted, and there is conspicuous epidermal tissue condensation and growth. The onset of early premoult (D sub(0)) is characterized by epidermal apolysis, occurring first at the bases of the setae in the telson of zoeal instars or in the rostrum of the megalopa.

Description: Laboratory-reared larvae of the spider crab, H. araneus L., were studied with regard to their fresh weight (FW), dry weight (DW), carbon (C), nitrogen (N), hydrogen (H), and energy content (J; estimated from C). FW remains fairly constant in each larval stage, regardless of feeding or starving conditions. This is due to regular changes in water content as opposed to those in organic constituents. There is a considerable gain (by a factor of 2 to 3) within each of these two instars. In the magalopa also a high amount of C, N, H, and energy is accumulated, but most of this gain is lost again during the last third of its stage duration. In all larval stages, weight-specific energy (J/mg DW) follows rather a cyclic pattern with decreases before and after molts, and increases during intermolt periods. It shows a decreasing trend during larval development. During starvation, biomass declines in an exponential pattern. Larvae of all stages die, when ca. 40 to 60% of their living substance and energy is lost.

Description: Larval and early post-larval growth has been investigated in H. araneus L. (Majidae) reared in the laboratory. Growth was measured as dry weight (DW), ash-free dry weight (AFDW), carbon (C), nitrogen (N), hydrogen (H), gross biochemical constituents (protein, lipid, carbohydrate, chitin, ash) and energy (calculated separately from carbon and biochemical composition). During larval development, i.e. from freshly hatched zoea-I to late megalopa, all these criteria of biomass increase by factors ranging between 5 and 14; carbohydrate shows the lowest, chitin the highest increment. There are indications of loss in organic body weight during the latest period preceding metamorphosis to the crab stage. When no food is offered during this time, megalopae lose significantly more biomass than control larvae. This suggests that food is still required, but feeding activity is reduced to a level below maintenance ingestion rate. Following metamorphosis, the juvenile crab accumulates biomass at a far higher absolute rate (expressed as µg/d) than all larval stages.

Description: The development of hard bottom communities has been studied on test panels in Helgoland Harbour (German Bight) since 1977. Settlement and growth of epibenthic species was examined monthly. Natural variation in different seasons, years, and at three stations (the latter, only in 1981 and 1982) was investigated. At Station A (Binnenhafen), barnacles (Balanus crenatus ) and polychaetes (Polydora ciliata ) were always among the first settlers in spring. They were followed by other barnacles (Elminius modestus, Balanus improvisus ) and by colonical ascidians (Botryllus schlosseri ). The latter species often dominated from August to October, and tended to overgrow the barnacle populations.

Description: The larval development f the spider crab Hyas araneus L. was studied in the laboratory at different constant temperatures (2,6,12, and 18 °C). Linear relationships between log temperature and log stage duration were described by means of regression equations. They were used in a simple simulation model predicting larval moulting and metamorphosis at different temperatures. The most important predictions were : (1) Settlement of H. araneus takes place mainly from late May to mid-June; (2) assuming wide annual fluctuations in the average spring temperature ( plus or minus 2 °C), a total settlement period ranging from late April to early July can be expected; (3) delay of larval development due to a decrease in temperature is stronger than the acceleration caused by an equally great increase; and (4) both delay and acceleration effects become weaker during the hatching season and from stage to stage.

Description: Filtration rate (F) and ingestion rate (I) were measured in the rotifer B. plicatilis feeding on the flagellate Dunaliella spec. and on yeast cells (Saccharomyces cerevisiae ). 60-min experiments in rotating bottles servedas a standard for testing methodological effects on levels of F and I. A lack of rotation reduced F values by 40%, and a rise in temperature from 18 degree to 23.5 degree C increased them by 42%. Ingestion rates increased significantly up to a particle (yeast) concentration of ca. 600-800 cells/µl; then they remained constant, whereas filtration rates decreased beyond this threshold. Elemental analyses ofrotifers and their food suggest that B. plicatilis can ingest up to 0.6 mJ or ca. 14% of its own body carbon within 15 min. The long term average was estimated as 3.4 m/ind or ca. 75% of body carbon/d.

Description: Zoea-1 larvae of H. araneus were kept under different nutritional conditions. Their midgut glands were investigated with a transmission electron microscope. The glandular epithelium consists of the cell types known from adult decapods. It is mainly the R-cell type that undergoes ultrastructural alterations which reflect nutritional conditions. R-cells of fed larvae are characterized by large lipid inclusions; after a certain period of food deprivation (point-of-no-return) the original ultrastructure cannot be reestablished. Refeeding results in large glycogen deposits in these cells.