Bucklandiella sudetica
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Bucklandiella sudetica |
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| ( Funck ) Bednarek-Ochyra & Ochyra |
Bucklandiella sudetica ( Syn .: Racomitrium sudeticum (Funck), German Sudeten Zackenmütze or Sudeten Zackenmützenmoos ) is a deciduous moss - species from the family Grimmiaceae .
features
Bucklandiella sudetica forms loose to dense, yellowish or olive-green to dark green, inside brown to blackish lawns. The up to 5 centimeters long, prostrate to ascending stems are usually not very branched. The dry, moist, upright leaves are lanceolate and gradually narrowed to the tip. They are single-layered, two-celled areas can only be present near the tip of the leaf. In the upper part the leaves are keeled. The leaf margins are wide on one side, but only slightly rolled up on the other side or even flat. A hyaline glass tip may be missing entirely or it may be short and toothed. The simple rib, strongly convex on the back, extends to the tip of the leaf. It is about 60 to 85 µm wide at the base and 40 to 55 µm wide at the top. Below it is three- to four-layered, above mostly three-, less often two-layered; on the ventral side it has 2 to 4 large cells.
The lamina cells are elongated and rectangular at the base of the leaf and have thickened nodular walls, in the middle of the leaf they are short rectangular to square. They are either smooth or pseudopapillary with flat, round papillae over the cell walls. Leaf-wing cells are not or barely differentiated, the basal leaf margins have a leaf border of about 5 to 10 hyaline and smooth to bulbous cells.
The light yellow to brownish seta is 2 to 3.5 millimeters long, the capsule is oblong-egg-shaped and up to 1.6 millimeters long. The 280 to 410 µm long peristome teeth are undivided or split in the upper half into 2 to 3 branches, the basement membrane is 35 to 50 µm high. The spore size is about 12 to 16 µm.
Distribution and location requirements
Bucklandiella sudetica is distributed in the northern hemisphere in Europe, Asia and North America - with the exception of the southern areas in each case - as well as in the southern hemisphere in southern South America, in Australia and in the Antarctic.
It colonizes silicate rocks in sunny or partially shaded locations in the high-montane to subalpine altitude levels.
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 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .
- Bucklandiella sudetica in www.eFloras.org - Flora of North America .
