Hypnaceae
| Hypnaceae | ||||||||||||
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Hypnum lacunosum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Hypnaceae | ||||||||||||
| Chimp. |
The Hypnaceae are the eponymous family of the moss order Hypnales .
features
They are delicate to strong mosses. The stems grow creeping or upright and have numerous rhizoids. The stems are almost always regularly or irregularly branched. The cells of their leaflets are usually extremely elongated (10 to 20 times as long as they are wide). The leaves always lack a midrib. At most at the base of the leaf there is a short double rib. The leaf cells, d. H. the cells of the flanks of the leaf base are often differentiated and rounded or square and with thickened cell walls. In many species the leaflets are curved to one side in a sickle shape.
The capsule is inclined to horizontal, it is rarely upright. The capsule lid is conical and blunt to short beaked. The kalyptra is shaped like a cap.
Systematics
The Hypnaceae comprise 52 genera with around 595 species. It is difficult to describe the family. According to molecular genetic results, it is still polyphyletic to the present extent , although several genera have already been transferred to other families. The genera that Stech and Frey placed in the family in 2009 are (species are only listed as examples):
- Acritodon
- Andoa
- Breidleria
- Bryocrumia
- Callicladium
- Campylophyllum
- Caribaeohypnum
- Chryso-hypnum
- Crepidophyllum
- Ctenidiadelphus
- Cyathothecium
- Dacryophyllum
- Ectropotheciella
- Ectropotheciopsis
- Ectropothecium
- Elharveya
- Elmeriobryum
- Entodontella
- Foreauella
- Gammiella
- Gollania
- Hondaella
- Horridophyllum
- Hyocomium
- Hypnum
- Irelandia
- Leiodontium
- Leptoischyrodon
- Macrothamniella
- Mahua
- Microctenidium
- Mittenothamnium
- Nanothecium
- Ochyraea
- Phyllodon
- Plagiotheciopsis
- Platygyriella
- Podperaea
- Pseudohypnella
- Pseudotaxiphyllum
- Ptilium
- Rhacopilopsis
- Rhizohypnella
- Sclerohypnum
- Stenotheciopsis
- Stereodontopsis
- Syringothecium
- Taxiphyllopsis
-
Taxiphyllum
- Java moss ( Taxiphyllum barbieri )
- Tomentypnum
- Vesicularia
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. 233 ff.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
