Pseudoleskeella catenulata
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Pseudoleskeella catenulata |
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| Pseudoleskeella catenulata | ||||||||||||
| ( Schrad. ) Childb. |
Pseudoleskeella catenulata ( rock chain moss ) is a deciduous moss species from the family Pseudoleskeellaceae .
features
Pseudoleskeella catenulata forms fine, dense, olive-green to brown-green, not shiny lawns. The slender plants with prostrate, 3 to 6 centimeters long trunks are irregularly branched, the partly upright thread-like branches are densely leafed. Stem leaves are up to 0.75 millimeters long, from the broadly egg-shaped, slightly wrinkled base, short and obliquely pointed, flat and entire, and have a strong rib that extends approximately to the center of the leaf. Branch leaves are smaller and narrower, the rib indistinct. The lamina cells are oval to rhombic in the middle of the leaf, thick-walled and smooth, and rather square on the leaf edges.
The spore capsule on the 1 to 1.5 centimeter long seta is cylindrical, curved and inclined, emptied and narrowed under the mouth, the lid conical and short-beaten, the peristome double. The finely papillary spores are 12 to 18 micrometers in size. However, the species rarely has fruit.
Location claims and distribution
The moss loves light and grows on limestone rocks in open to partially shaded areas. However, very warm, exposed locations at low altitudes are avoided.
In Central Europe, the species is fairly widespread in the Alps and the southern German limestone mountains, but otherwise rare. There are other European occurrences especially in Scandinavia, the Pyrenees and east to Russia. In addition to Europe, it occurs in parts of Asia and North Africa.
literature
- 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 .
