Timmia austriaca
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Timmia austriaca |
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| Timmia austriaca | ||||||||||||
| Hedw. |
Timmia austriaca (German Austrian Grobzahnmoos ) is a deciduous moss species in the Timmiaceae family .
description
The often very strong plants can reach heights of up to 20 centimeters and form loose to moderately dense, yellowish-green, reddish-brown inside lawns. The leaves are lanceolate and blunt to pointed. They have a wider reddish-brown sheath at the base. The leaf margins are roughly sawn in the upper half. The vein is serrated too bluntly on the back against the tip of the leaf. The middle lamina cells in the spreading area are usually square and 8 to 12 (rarely 15) micrometers in size, the cells of the vaginal part are linear and smooth.
The species is diocesan . The seta is up to 6 centimeters long, the oblong, egg-shaped capsule is almost horizontal and slightly raised, the capsule lid is arched and tipped. Spores are finely papillary and 16-18 micrometers in size. Spore ripening time is in summer.
Location requirements
Timmia austriaca loves chalk and grows mainly in subalpine altitudes in shady places on earth, in crevices and rock niches, also on walls and on roadsides.
distribution
The moss with arctic-boreal-montane distribution is very rare in Germany. In Austria and Switzerland it occurs scattered in the Alps. Worldwide there are deposits in Central and Northern Europe, in Asia and in North America.
swell
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 2: Special part, (Bryophytina II, Schistostegales to Hypnobryales). Ulmer, Stuttgart 2001, ISBN 3-8001-3530-2 .
