Bryum capillare
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Bryum capillare |
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Bryum capillare , the hairy pear moss , belongs to a group of species in the genus Bryum , the division of which into species is still unclear. This group is mostly called Bryum capillare sensu lato or Bryum capillare agg. designated. In the following description one should keep in mind that the demarcation from Bryum capillare s.str. is not sharp to the neighboring species.
features
The plants of this species reach heights of 1 to 3 cm, usually around 1.5 cm. The largest leaflets are at the end of the stem , so that the leaves at the top are almost rosette-shaped. The leaflets are clearly screwed when dry.
In terms of shape, the leaflets are broadly egg-shaped or spatulate and converge more or less at an obtuse angle at the front before they are suddenly drawn together into a distinct tip of hair. The leaf vein ends just before this hair tip or in it. The tip of the leaf is not like glass hair. The leaf margin is entire and provided with a border of elongated cells in three to four rows.
The species is diocesan . The vegetative reproduction takes place through rhizoid gemmen.
Occurrence
Bryum capillare is happy with any substrate. It grows on earth, rock or on bark. In the inner cities it is found mainly in shady places on walls, because it prefers moderately humid locations. It is common everywhere.
It's a cosmopolitan species.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
