A revision of the genus Potamium (Musci: Sematophyllaceae).
- The neotropical genus Potamium as described by Mitten (1869) included species that had little more in common than a growth form adapted to a semi-aquatic habitat. Brotherus divided the genus in section Eu-Potamium and section Potamiopsis, based on peristome characters. This study shows that all species of section Eu-Potamium belong to Sematophyllum, including P. lonchophyllum which was designated as lectotype of Potamium by Buck (1990). In section Potamiopsis two species are recognized: P. vulpinum (Mont.) Mitt. (syn. nov.: Sematophyllum maguireorum Buck) and P. deceptivum Mitt. (syn. nov.: P. leucodontaceum (C.Müll.) Broth., Meiothecium negrense Mitt. and Maguireella vulpina (Mont.) Buck). The genus Potamium is characterized by capsules with an endostome consisting of a low basal membrane and filiform segments, which are often reduced in P. deceptivum. P. vulpinum is designated as lectotype of Potamium and the lectotypification of Buck is rejected. Descriptions, illustrations and a key are provided to the species of Potamium and allied semiaquatic taxa of Sematophyllum.
Author: | J. Florschütz-de WaardGND |
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URN: | urn:nbn:de:hebis:30:3-302035 |
ISSN: | 0935-5626 |
Parent Title (English): | Tropical bryology |
Publisher: | D. Quandt, Univ. Bonn, Nees Inst. für Biodiversität d. Pflanzen |
Place of publication: | Bonn |
Document Type: | Article |
Language: | English |
Year of Completion: | 1992 |
Year of first Publication: | 1992 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2013/07/11 |
Issue: | 5 |
Page Number: | 13 |
First Page: | 109 |
Last Page: | 121 |
Note: | The layout of the electronic version of this contribution differs from the layout of the original version published in the printed volume. |
HeBIS-PPN: | 348826540 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 58 Pflanzen (Botanik) / 580 Pflanzen (Botanik) |
Sammlungen: | Sammlung Biologie / Sondersammelgebiets-Volltexte |
Zeitschriften / Jahresberichte: | Tropical Bryology / Tropical Bryology, Volume 5 (1992) |
: | urn:nbn:de:hebis:30:3-301389 |
Licence (German): | Deutsches Urheberrecht |