Long-leaved white forked tooth moss
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Long-leaved white-forked tooth moss ( Paraleucobryum longifolium ) |
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| ( Hedw. ) Loeske |
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The Langblättrige White Fork Teeth Moss ( Paraleucobryum longifolium , . Syn : Dicranum longifolium . Hedw) is a moss - kind from the family Dicranaceae .
features
The dicranum- like moss forms loose light to dark green, somewhat shiny lawns. The weakly rhizoid felted stems are usually 3 to 4 centimeters, more rarely up to 8 centimeters high. The leaves are clumpy at the tip of the shoot and are usually crescent-shaped, one-sided, rarely straight and, for a lanceolate base, drawn out into a long awl-shaped and tubular tip with sawn edges. The broad leaf rib takes up half the leaf width at the leaf base and the lamina on both sides of the rib is only 10 to 15 rows wide. In the upper awl-shaped part of the leaf, the rib is grooved lengthways on the back and fills the entire width of the leaf.
The lamina cells are rectangular at the base of the leaf and shorter towards the top. Leaf-wing cells are somewhat enlarged and brownish. The rib cross-section has three layers: ventral (ventral) hyaline outer cells, median chlorophyll cells and on the dorsal (back) side hyaline and chlorophyll cells.
The moss is diocesan . Sporophytes are rarely formed. Spore ripening is in summer. The seta is reddish below, yellowish above, 1 to 2 centimeters long and carries an upright, straight, cylindrical capsule. The capsule lid is long beaked. The finely papillary spores are 14 to 21 µm in size.
Location claims and distribution
The long-leaved white-forked moss avoids lime and grows in not too dry locations on silicate rock and on the base of deciduous trees. In the lowlands it occurs only sporadically, in silicate mountains it is quite common. In the Alps it rises to medium alpine altitudes. The moss occurs in the northern hemisphere in Europe, Asia and North America.
literature
- Ruprecht Düll , Barbara Düll-Wunder: Determine mosses easily and reliably. An illustrated excursion guide to the types of Germany and neighboring countries. Quelle & Meyer, Wiebelsheim 2008, ISBN 978-3-494-01427-2 .
- 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 .
