Distichium capillaceum
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Distichium capillaceum |
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| ( Hedw. ) Bruch & Schimp. |
Distichium capillaceum ( mountain Zweizeilmoos ) is a moss - kind from the family Ditrichaceae .
features
The plants, up to 8 centimeters in size, form dense yellow-green to green lawns with a thick rust-brown rhizoid felt at the bottom. The leaves, arranged in two rows, are suddenly narrowed into the long, almost sparsely protruding awl tip from a broad, white-sheathed base attached to the stem. The leaf shoulder and the leaf tip are weakly serrated.
The spore capsule is more or less upright and cylindrical. The peristome teeth are irregularly split, up to 30 micrometers wide at the base and steeply oblique to longitudinally striped. The spore size is 16 to 25 µm. Spore capsules are formed regularly, spore ripening time is around June - July.
Compared to the very similar species Distichium inclinatum , Distichium capillaceum differs through the predominantly rhombic and confused lamina cells in the leaf shoulders, through the almost upright capsule with peristome teeth up to 30 µm wide at the base and smaller spores measuring up to 25 µm.
Distribution and location requirements
The boreal-montane species is distributed almost worldwide. It usually settles overgrounded steps and crevices of limestone rocks, more rarely of lime-free but base-rich rocks in shady locations, furthermore on lime mortar from ruins, bridge walls and the like or on concrete. It is quite widespread in the limestone mountains and rises up to the nival level; it is very rare in the lowlands.
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 .
