Grimmia
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Grimmia is a genus of deciduous moss in the Grimmiaceae family .
features
The 5 to 40 (70) millimeter large plants form loose lawns to dense cushions. The leaves are oblong-ovate to lanceolate, rarely tongue-shaped, concave or keeled, have a well-developed vein that extends to the tip of the leaf, further flat, inwardly curved or recurved leaf margins and often a glass tip. The lamina is single to multilayered. Leaf cells are shorter or longer rectangular at the leaf base, but never thickened like a barbed wire as in Racomitrium species. The cells in the middle of the leaf are round, square and usually thick-walled.
The species are dioecious or autocratic (antheridia and archegonia on different branches on the same plant). Brood bodies are formed in some of the species. The short to long seta is erect or curved, the spore capsule is erect to pendulous, the kalyptra cap-shaped or bonnet-shaped. The columella (central column in the spore capsule) remains in the capsule and is not connected to the capsule lid.
distribution
The genus Grimmia is common on all continents. Most species prefer dry and temperate to cold climates and are rock dwellers.
Systematics and types (selection)
The information on the number of species varies from 95 to 160 depending on the data source. According to Stech & Frey, there are around 110 species worldwide.
The following species occur in Germany, Austria and Switzerland:
- Grimmia alpestris
- Grimmia anodon
- Grimmia anomala
- Grimmia arenaria
- Grimmia atrata
- Grimmia caespiticia
- Grimmia crinita
- Grimmia decipiens
- Grimmia dissimulata
- Grimmia donniana
- Grimmia elatior
- Grimmia elongata
- Grimmia funalis
- Grimmia fuscolutea
- Grimmia hartmanii
- Grimmia incurva
- Grimmia laevigata
- Grimmia longirostris
- Grimmia mollis
- Grimmia montana
- Grimmia muehlenbeckii
- Grimmia orbicularis
- Grimmia ovalis
- Grimmia plagiopodia
- Grimmia pulvinata
- Grimmia ramondii
- Grimmia reflexidens
- Grimmia teretinervis
- Grimmia tergestina
- Grimmia torquata
- Grimmia trichophylla
- Grimmia triformis
- Grimmia unicolor
Individual evidence
- ↑ Wolfgang Frey, Michael Stech, Eberhard Fischer: Bryophytes and Seedless Vascular Plants (= Syllabus of Plant Families. 3). 13th edition. Borntraeger, Berlin et al. 2009, ISBN 978-3-443-01063-8 , p. 159.
literature
- 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 .
Web links
- Checklist of Austria's Mosses ( Memento from November 28, 2012 in the web archive archive.today )