Pterigynandrum filiforme
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Pterigynandrum filiforme |
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Pterigynandrum filiforme ( Fädiges Zwirnmoos or Faden-Zwirnmoos ) is a deciduous moss species from the family Pterigynandraceae .
features
The almost thread-shaped plants form yellow-green, flat lawns that are pressed against the substrate. The creeping main trunks are irregularly branched, the secondary trunks and branches slender and catkin-shaped leaves. The adjacent to upright, sometimes one-sided leaves are oval and short-pointed, hollow, the leaf margins sawn at the top, the short leaf vein usually double or, more rarely, single.
The lamina cells are elongated, diamond-shaped and thick-walled; on the underside of the leaf the upper cell ends are formed into high protruding papillae. Leaf-wing cells are small and sub-square.
The sporophyte has an upright, cylindrical capsule with an obliquely beaten lid, a cap-shaped calyptra and a double, short peristome . The finely papillary spores measure 12 to 16 micrometers.
Varieties
A var. Majus (strong shape, mostly on rock) and a var. Filiforme (smaller with thread-like long branches, mostly epiphytic) are described or distinguished from the variable species .
Distribution and location requirements
The moss is distributed around the circumference . In Central Europe it mainly inhabits forest locations in montane locations. It very often grows on the bark of hardwoods such as ash, maple or beech, more rarely on rock that is poor in lime.
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 2: Special part, (Bryophytina II, Schistostegales to Hypnobryales). Ulmer, Stuttgart 2001, ISBN 3-8001-3530-2 .
