Paraleucobryum
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Paraleucobryum longifolium |
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| ( Limpr. ) Loeske |
Paraleucobryum ( white forked tooth moss ) is a genus of deciduous moss from the family Dicranaceae . The species are predominantly found in the northern hemisphere.
features
The plants are similar to Dicranum species and form loose to dense, whitish-green to yellowish-green or gray-green, shiny cushions or lawns, are up to 4 centimeters in size, upright and simple or branched. The leaves are straight to sickle-shaped, drawn out from a lanceolate base in a long tubular awl, with a broad rib, flat or slightly curved leaf margins and clearly differentiated, more or less inflated leaf wing cells. The rib cross-section is usually three-layered, with a middle layer of chlorophyll-containing cells and a dorsal and ventral layer of hyaline cells; Stereids are absent. Leaf cells are rectangular in the upper part of the leaf, elongated at the bottom. The upright, straight to slightly curved and cylindrical spore capsule has a long beaked lid. The moss is diocesan .
Systematics and types
Originally the genus was listed as a subgenus of Dicranum , with which it has habitual similarities. The completely different structure of the leaf veins, however, indicates a certain relationship with the genus Leucobryum , the white mosses .
Four species are counted worldwide to Paraleucobryum . Species found in Germany, Austria and Switzerland are:
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 .
