Syntrichia
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Syntrichia is a genus of akrokarpen mosses from the family pottiaceae .
features
The mosses are similar to the tortula species, but in general they are often larger and stronger. They form small to large, green to yellow-brown or red-brown clusters. The stems are simple or forked, the leaves protruding or curved when moist are obovate, spatulate or tongue-shaped, rarely broadly elongated-lanceolate. The leaf margins are flat or bent and usually entire. The leaf vein extends into the leaf tip, emerges as a short tip or very often as a long and mostly toothed glass hair.
At the base of the leaf, on both sides of the rib, there is an approximately inverted U-shaped group of large, rectangular, smooth, hyaline and thin-walled cells, which are clearly delimited from the upper, smaller, mostly round-square and strongly papillary lamina cells.
The species are dioecious (dioecious), autocratic (monoecious) or synocial (hermaphroditic). The red or brown, elongated and smooth seta carries an upright, straight or slightly curved cylindrical spore capsule with a cone-shaped lid and a cap-shaped calyptra . The 32 peristome teeth are thread-shaped.
The mosses colonize rock, earth and tree bark. They are cosmopolitan.
Systematics
Syntrichia was long assigned to the genus Tortula and has recently been separated from it as an independent genus. They appear to be a monophyletic group.
species
According to Frey / Fischer / Stech, 90 species worldwide are included in the genus Syntrichia . However, the species delimitation is sometimes difficult and not undisputed. Several species that are difficult to distinguish ( S. calcicola , S. densa , S. glabra , S. princeps , S. ruralis s.str. , S. ruraliformis , S. subpapillosissima ) are also part of the species group Syntrichia ruralis agg. or Syntrichia ruralis s. Latin , often referred to as Tortula ruralis complex, summarized.
The following species are represented in Germany, Austria and Switzerland:
- Syntrichia calcicola ( Tortula calcicolens )
- Syntrichia caninervis ( Tortula caninervis )
- Syntrichia densa
- Syntrichia fragilis ( Tortula fragilis )
- Syntrichia glabra
- Syntrichia laevipila ( Tortula laevipila )
- Syntrichia latifolia ( Tortula latifolia )
- Syntrichia montana ( Tortula crinita , Tortula intermedia )
- Syntrichia norvegica ( Tortula norvegica )
- Syntrichia papillosa ( Tortula papillosa )
- Syntrichia papillosissima ( Tortula papillosissima )
- Syntrichia princeps ( Tortula princeps )
- Syntrichia ruraliformis ( Tortula ruraliformis )
- Syntrichia ruralis ( Tortula ruralis )
- Syntrichia sinensis ( Tortula sinensis )
- Syntrichia subpapillosissima ( Tortula papillosissima var. Submamillosa )
- Syntrichia virescens ( Tortula virescens )
swell
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Wolfgang Frey, Michael Stech, Eberhard Fischer: Bryophytes and Seedless Vascular Plants (= Syllabus of Plant Families. 3). 13th edition. Borntraeger, Berlin et al. 2009, ISBN 978-3-443-01063-8 .
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .
- Syntrichia in Flora of North America .
