Pseudocrossidium revolutum
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Pseudocrossidium revolutum |
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| ( Brid. ) RHZander |
Pseudocrossidium revolutum (German Rückrolltes Scheinfransenmoos ) is a deciduous moss - kind from the family Pottiaceae . A synonym is Barbula revoluta Brid.
features
Pseudocrossidium revolutum forms fresh green to light green, inside brownish, dense and low cushioned lawns. The shoots, up to a little over 1 centimeter high, are not very branched and have moist, rigid leaves that stick out upright. When dry, the leaves are inflected and twisted in a spiral. They are lanceolate to tongue-shaped, blunt or provided with short, offset tips, the leaf margins strongly rolled back from bottom to top. The strong vein ends in the leaf tip or emerges briefly. The leaf cells are rectangular and smooth at the bottom, roundish square at the top, densely papillosome and 7 to 10 micrometers in size. The elongated and upright spore capsule on the seta , which is red below and yellow above, has long, spiraling peristome teeth. The capsule lid is long beaked. Vegetative reproduction takes place through multicellular, ellipsoidal brood bodies formed in the leaf axils .
Location requirements
The species loves warmth and colonizes calcareous rock and walls, as well as calcareous earth, especially in gaps in dry grassland. Frequent accompanying mosses are Didymodon acutus , Didymodon rigidulus , Didymodon vinealis , Grimmia pulvinata , Orthotrichum anomalum , Schistidium apocarpum and Tortula muralis .
distribution
The moss has its main distribution in the hill country and in lower to middle mountain areas, rising to a maximum of 900 meters. It is very rare in the lowlands. The frequency in Germany is given as moderately frequent. In Europe, it is particularly widespread in the western, central and southern parts. Other deposits are in Central and Southwest Asia, North America, North and South 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 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .
