Spinning pear moss
| Spinning pear moss | ||||||||||||
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Spinning pear moss ( Bryum turbinatum ) |
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| Scientific name | ||||||||||||
| Bryum turbinatum | ||||||||||||
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The diocesan round fruity pear moss ( Bryum turbinatum ) occurs mainly in moors and wet meadows . With the decimation of its habitats, it has become quite rare and increasingly threatened. Usually it forms very small stands.
features
Bryum turbinatum grows in dense to loose, usually up to 2 cm high, dirty to yellowish green, often reddish turf. The slender, sterile shoots are characteristically elongated and distantly leafed. The leaves, which stand upright when moist and slightly twisted when dry, are ovate-lanceolate, gradually pointed and with entire margins. At the base of the leaf it is slightly sloping down the stem (often indistinctly recognizable). The color of the leaf base cells is not different from the other lamina cells . The midrib ends in front of or in the tip of the leaf. The lamina cells are 70 to 100 µm long and 17 to 21 µm wide. At the edge of the leaf they are narrower and longer and form a weak border of 1 to 3 rows of cells. The reddish seta is up to 4 cm long and has a pendulous, ripe yellow to brownish colored capsule, which is broadly pear-shaped and, when dry, appears constricted under the mouth after the lid has fallen off. They are usually abundantly developed in early summer.
Location and distribution
The round-fruited pear moss colonizes moist to wet, base-rich, often calcareous, light-rich to partially shaded locations. It grows on loamy, sandy, clayey, peat or humus-containing, rarely gravel-rich soil. It grows mainly on the edges of ditches and ponds, on the banks of bodies of water, in patchy wet meadows, on the edge of peat cuttings , in wet lime tuff and rarely in the joints and crevices of walls. It is common throughout Central Europe, but not often.
literature
- 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 .
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
