Pottiales
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Wall-toothed moss ( Tortula muralis ) |
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| M. meat. |
The Pottiales are an order of the moss . The worldwide common genus includes around 1500 species in 5 families. Many of the representatives live in arid conditions.
features
The mosses of this order are almost exclusively acrocarpic mosses. The stems are mostly upright and not very branched. The leaves are mostly ovate or spatulate. The cells of the leaf blade are mostly rounded and often strongly papilous . The lower cells are separated from the upper cells and are hyaline (= water-white, transparent). A vein is usually present and strongly developed.
The capsule is erect and rounded to cylindrical. The peristome consists of 16 teeth, but it can also be missing.
Distribution and occurrence
The representatives of the Pottiales are more characterized by their preference for light-rich and often dry locations. They are distributed worldwide and mostly live terrestrially.
Systematics
The Pottiales are divided into five families, the largest by far is the Pottiaceae family :
- Order pottiales
- Family pottiaceae , 1425 species worldwide
- Family Ephemeraceae , 38 species, approximately worldwide
- Family Hypodontiaceae , 2 species, southern Africa
- Family Pleurophascaceae , 3 species, Australasia
- Family Serpotortellaceae , 2 species, epiphytic , Madagascar and Réunion
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Jan-Peter Frahm: Biology of Mosses. Spectrum Akademischer Verlag, Heidelberg et al. 2001, ISBN 3-8274-0164-X .
Individual evidence
- ↑ a b 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. 176.