Tropical Bryology, Volume 1 (1989)
Refine
Year of publication
- 1989 (7)
Document Type
- Article (7)
Has Fulltext
- yes (7)
Is part of the Bibliography
- no (7)
All the species of Chorisodontium recorded from the neotropical mountains (Bolivia –Costa Rica) have been critically revised. Three species, C. nigricans Herz, C. mittenii (C. Müll.) Broth. And C. wallisii (C. Müll.) Broth. Are accepted. Chorisodontium speciosum (Hook. F. & Wils. ) Broth. Is placed as a variety to C. wallisii.
A bryological inventory of the Upper Mazaruni District, Guyana (former British Guiana) yielded almost three hundred species, including 2 genera and 11 species new to science and 130 species new to the Guianas. The densely forested and very humid north slope of Mount Roraima (500-2300 m.) proved to be the richest area for bryophytes and most of the novelties were found there. The present paper provides an enumeration of the species collected with a brief characterization of their habitat. The following species are described as new: Haesselia acuminata Gradst., Plagiochila gymnocalyx Inoue, Radula gradsteinii Yamada, Radula guyanensis Yamada, Radula mazarunensis Yamada and Stenorrhipis grollei Gradst. Anastrophyllum subg. Vanaea Inoue & Gradst. from Mount Roraima is elevated to generic rank.
Bryohumbertia subcomosa (Dix.) J.–P. Frahm, a new name for Bryohumbertia walkeri (Mitt.) J.-P. Frahm
(1989)
The concept of Bryohumbertia walkeri (Mitt.) J.-P. Frahm was based on isotype specimens, which are, however, not identical with the holotype which consists of Campylopus comosus (Reinw. & Hornsch.) Bosch & Lac.. Therefore the next older epithet available must be chosen for B. walker and the new combination B. subcomosa is introduced accordingly.
37 species of mosses are reported from the Mascarenes. Of these 19 belong to the genus Campylopus and 8 to Leucoloma. Three are new to the Mascarenes i.e. Campylopus leucochlorus (C.Müll.) Par., C. paludicola Broth. and C. subperichaetialis Biz. & Kilb., two are new to Mauritius i.e. Bryum truncorum (Brid.) Brid. and Leucoloma cinclidotioides Besch. and four are new to Réunion i.e. Campylopus incacorralis Herz. C. praetermissus J.-P. Frahm, C. trachyblepharon (C. Müll.) Mitt. ssp. comatus (Ren. & Card.) J.- P. Frahm and Leucoloma rutenbergii (Geh.) Wright var. elatum Ren. The variety is new to the Mascarenes.
Herbaria: The National Council for the Flora of Mexico (Consejo Nacional de la Flora de México) recently published a revised edition of the catalogue of Mexican herbaria (Arreguín & Valenzuela 1986). This contains information on 58 institutional herbaria including name, accepted acronym -when available-, number of specimens, important col-lections, available services, staff research interests, geographical coverage, etc.
A revised moss checklist for Colombia recognizes 877 species distributed among 242 genera and 65 families. Departmental distribution is provided for all species. This paper is based on the previous checklist by Florschütz-de Waard & Florschütz (1979), publications since that time, on the extensive holdings of the New York Botanical Garden, the Institute of Systematic Botany, Utrecht, and other herbaria, and on recent field work. Included in this list are a number of the collections made by Aguirre C., Cleef, Griffin, Killip, Schultes, Steere, van der Hammen and van Reenen, among others, which have not previously been incorporated into the Colombian moss literature. Comparison of the number of species reported for each of the departments based on the 1979 and the present checklist both suggest that over half of the departments are poorly known. Forty new additions to Colombia are provided in this catalogue: Amblystegium serpens, Anoectangium aestivum, Astomiopsis amblycalyx, Breutelia brevifolia, Brymela parkeriana, Bryohaplocladium praelongum, Bryum coloratum, B. perlimbatum, Chorisodontium setaceum, Dicranum peruvianum, Drepanocladus uncinatus, Encalypta asperifolia, Entodon hampeanus, Epipterygium immarginatum, Fissidens allionii, F. diplodus, F. intermedius, Groutiella obtusa, Gymnostomum recurvirostrum, Hymenodon reggaeus, Leiomela ecuadorensis, Lepidopilum affine, L. cuspidans, L. cubense, Leptodontium stellaticuspis, Leskea plumaria, Leskeadelphus bolivianus, Neckera urnigera, Potamium deceptivum, P. pacimonense, Pseudotaxiphyllum distichaceum, Rhegmatodon polycarpa, Schistidium apocarpum, S. rivulare ssp. latifolium, Scorpidium scorpioides, Syrrhopodon steyermarkii, Tortula caroliniana, Zygodon ehrenbergii, Z. fragilis, Z. stenocarpus. Approximately 560 new departmental records are included. Several new combinations are made: Calyptrochaeta deflexa (C. Muell.) comb. nov., C. nutans (Hampe) comb. nov., Pleuridium subenervis (Hampe) comb. nov., Rhodobryum perspinidens (Broth.) comb. nov., R. roseodens (C. Muell.) comb. nov., Schizymenium brevicaulis (Hornsch.) comb. nov., S. dolichothecum (Herz.) comb. nov., S. pectinatum (C. Muell.) comb. nov., S. subobliquum (Hampe) comb. nov., Sematophyllum sticticola (C. Muell.) comb. nov. and, S. turgidulum (Herz.) comb. nov. Several further species are reduced to synonymy: Aulacomnium venezuelanum Mitt. (=A. palustre), Grimmia bogotense (Hampe) Jaeg. (=G. longirostris), Mielichhoferia elegans Herz. (=Schizymenium bogotense), Pohlia integridens (C. Muell.) Broth. (=P. elongata), and P. paucifolia (Jaeg.) Broth. (=P. elongata).
There are 26 species of Campylopus in Central America. They are divided into three groups on the basis of two characters: the presence or absence in the costa of a ventral layer of enlarged, hyaline cells and the presence or absence in the stem of an outer hylodermis. Dicranum costaricensis Bartr. is transferred to Campylopus as C. valerioi nom. nov. Campylopus hoffmanii and C. standleyi are recognized as distinct species. Six new synonyms are proposed: C. straminifolius = C. densicoma; C. costaricensis = C. surinamensis; C. roellii = C. tallulensis; C. donnellii = C. zygodonticarpus; C. tuerckheimii = C. zygodonticarpus; C. sargii = C. zygodonticarpus.