Sematophyllaceae is a family of mosses, known commonly as signal mosses.Watson, L., and Dallwitz, M.J. 2005 onwards. Sematophyllaceae. The Moss Families of the British Isles. Version: 21 June 2009. They grow on rocks in wet or humid places. and are found nearly worldwide, especially in tropical and temperate regions.Sematophyllaceae. Flora of North America. Volume 28. There are about 150 species, which form yellow to yellow-green mats with reddish stems.
Genera The family Sematophyllaceae contains the following genera:
Acanthorrhynchium †Acroporiites Acroporium Allioniellopsis Aptychopsis Billbuckia Brittonodoxa Chionostomum Clastobryophilum Clastobryopsis Colobodontium Donnellia Hydropogon Hydropogonella Jirivanaea Kuerschneria Macrohymenium Meiotheciella Meiotheciopsis Meiothecium Microcalpe Papillidiopsis Piloecium Pilosimitra Pseudopiloecium Pterogoniopsis Radulina Rhaphidorrhynchium Rhaphidostegium Rhaphidostichum Schraderella Schroeterella †Sematophyllites Sematophyllum Timotimius Trichosteleum Warburgiella
Formerly included Clastobryella (synonym of Clastobryum) Paranapiacabaea (synonym of Pterogoniopsis) Potamium (synonym of Trichosteleum) Trolliella (synonym of Pylaisia) Vitalia (synonym of Jirivanaea)
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