Hygrohypnum luridum
| Hygrohypnum luridum | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
_0701.JPG)
Hygrohypnum luridum |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Hygrohypnum luridum | ||||||||||||
| ( Hedw. ) Jenn. |
Hygrohypnum luridum (German names are Bräunliches Wasserschlafmoos or Kalk-Wasserschlafmoos ) is a deciduous moss species from the Amblystegiaceae family .
features
Hygrohypnum luridum is a variety of shapes . The small to moderately strong plants form brownish-green to olive-green lawns or coatings that are close to the substrate. The creeping stems are irregular or densely branched, the branches usually ascending. The densely set, ovate to broadly lanceolate leaves narrowed into a short tip are barely 1 millimeter long, somewhat hollow, with entire margins and upright or sickle-shaped. The simple or forked leaf vein is short or extends over the middle of the leaf. In the middle of the leaf, the cells are rhombic to linear, moderately thick-walled and usually serpentine, in the leaf tip and at the leaf base they are shorter. Leaf-wing cells are clearly differentiated, square to rectangular, expanded, thick-walled and yellowish to brownish.
The autocratic (antheridia and archegonia are on different branches on the same plant) species often bear fruit. On the seta, which is up to 2 centimeters long, there is an inclined, egg-shaped to almost cylindrical spore capsule with a blunt to short-beaten lid. The uncovered capsule is clearly constricted under the mouth. Spores are very finely crenulated and 14 to 25 micrometers in size.
Location claims and distribution
Hygrohypnum luridum grows in more humid to wet or occasionally flooded locations, mainly on flowing water. Limestone is predominantly settled. The species is particularly widespread in middle altitudes, in low altitudes and above the tree line it is rare or absent. Worldwide there are deposits in Europe, Asia and North America.
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 .
