Didymodon vinealis
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Didymodon vinealis |
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| Didymodon vinealis | ||||||||||||
| ( Brid. ) RHZander |
Didymodon vinealis ( Weinberg double toothed Moss ) is a moss -Art from the family pottiaceae . A common synonym is Barbula vinealis Brid.
features
The moss forms low-growing, loose to dense, yellowish-green to brownish-green lawns. The little branched stems are up to 4 centimeters high. The lanceolate leaves are gradually narrowed into a long, sharp point. When moist, they are upright or protruding, and when dry, they are bent or curled. The leaf margins are bent back to 2/3 or 4/5 of the leaf length. The rib ends in or below the tip of the leaf.
The lamina cells are square to (mostly) rectangular, transparent and smooth at the base of the leaf, roundish-square to hexagonal in the upper part of the leaf, moderately thick-walled, densely papillary and more or less opaque. The leaf vein has short, roughly square cells on the upper side (ventral). The cross-section of the ribs shows a multilayered dorsal steroid band, ventral stereids are missing.
The diocesan way seldom works. The seta is reddish, the capsule is ellipsoidal to cylindrical and has long, spirally wound peristome teeth. The capsule lid is beaked, the spores are smooth and 8 to 12 µm in size.
Location requirements
Didymodon vinealis loves warmth and grows on an alkaline, mostly calcareous substrate in light to partially shaded areas on loess, on dry and warm soil, on rocky areas in dry grass, further on vineyard walls and natural stone walls.
A variety described as "Didymodon vinealis var. Flaccidus" (Bruch & Schimp.) RH Zander with longer, clumpy, heaped upper leaves, prefers fresh to moist growth species. A clear separation does not seem possible because of the transitional forms that occur.
distribution
The species is widespread in Europe especially in the southern and central parts and is absent in the far north. There are other occurrences in parts of Asia, North Africa, North and Central America and Oceania.
literature
- Jan-Peter Frahm, Wolfgang Frey, J. Döring: Moosflora . 4th edition, UTB Verlag, 2004, ISBN 3-8252-1250-5 , p. 286
- Nebel, Philippi: The Mosses of Baden-Württemberg Volume 1 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3527-2 , p. 323ff
