Revision of the genus Squamidium (Musci: Meteoriaceae)

  • The genus Squamidium, a group of mosses with a tropical to subtropical American-African distribution, consists of two sections and seven species (prior to this study 27 species were recognized): sect. Squamidium (S. leucotrichum, S. livens, S. isocladum, S. nigricans, S. brasiliense) and sect. Macrosquamidium (S. macrocarpum and S. diversicoma). Twenty-four names are treated as syn. nov., three are provisionally excluded pending an examination of their types, and one new combination is made: Orthostichopsis pilotrichelloides (Sehnem) Allen & Crosby. Section Squamidium ist characterized by immersed capsules, stolon leaves with entire margins, and a relatively high basal membrane. Section Macrosquamidium is characterized by exserted capsules, stolon leaves with sharply recurved marginal teeth, and a relatively low basal membrane. The genus is retained in the Meteoriaceae. Within the Meteoriaceae Squamidium, is most closely related to Zelotmeteorium from which it differs only by its lack of squarrose-recurved leaves and its more well-developed alar cells. Squamidium, which in the absence of sporophytes has been confused consistently with Orthostichopsis, is separated from that genus on the basis of its lack of pseudoparaphyllia, weaker costae, lack of a distinct region of reddish cells across the leaf base, and strongly decurrent alar cells.

Download full text files

  • E001535876.pdf

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Bruce H. Allen, Marshall R. Crosby
Parent Title (English):Journal of the Hattori Botanical Laboratory : devoted to bryology and lichenology
Parent Title (mis):Hattori-Shokubutsu-Kenkyūsho-hōkoku
Publisher:Hattori Botanical Laboratory
Place of publication:Nichinan, Miyazaki
Document Type:Article
Date of Publication (online):2008/02/06
Year of first Publication:1986
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2008/02/06
Page Number:54
First Page:423
Last Page:476
Signatur: SZ 910
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 58 Pflanzen (Botanik) / 580 Pflanzen (Botanik)
Sammlungen:Sammlung Biologie / Weitere biologische Literatur (eingeschränkter Zugriff)
Licence (German):License LogoArchivex. zur Lesesaalplatznutzung § 52b UrhG