Grimmia laevigata
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Grimmia laevigata |
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| Grimmia laevigata | ||||||||||||
| (Brid.) Brid. |
Grimmia laevigata (German Gray Cushion Moss) is a moss - kind from the family Grimmiaceae . Synonyms are Grimmia campestris Burchell ex Hook. or Guembelia laevigata (Brid.) Ochyra & Zarnowiec.
features
Grimmia laevigata forms low gray-green, easily disintegrating cushions. The upright plants reach heights of about 2 centimeters. The trunk cross-section shows a clear central cord. The dry, moist, upright leaves are broadly ovate, 1.5 to 3 millimeters long and 0.4 to 0.6 millimeters wide, concave, semicircular in cross-section and have flat leaf margins. The leaf vein is strongly expanded at the leaf base, otherwise weakly developed. The upper leaves of the stems have a long, toothed glass tip; the lower leaves are short or absent. The lamina cells are thick-walled, smooth, round-square, only rectangular on the leaf base next to the rib. The lamina is single-celled at the base of the leaf and at the edges, otherwise two-celled throughout.
The moss is diocesan . The seta is up to 2 millimeters long and straight, the upright spore capsule protruding from the leaves is elongated-ovoid, smooth and narrow-mouthed, the lid is short-beaked.
Distribution and location requirements
Grimmia laevigata is distributed almost worldwide and colonizes lime-free or lime-poor silicate rocks in sunny, dry and warm locations. In Central Europe it is rather rare and largely restricted to low mountain ranges.
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 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .
