Aongstroemiaceae
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The Aongstroemiaceae are a family of deciduous mosses from the order Dicranales .
features
The plants are small to medium in size and form loose to dense lawns. A central strand is present in the trunk cross-section. The leaves are usually broad with a blunt tip, the leaf margins are whole or slightly serrate to toothed. The lamina cells are variable in shape, usually smooth. Leaf-wing cells are not differentiated. The rib is simple, sometimes protruding briefly.
The species are diocesan . An elongated, straight or curved seta carries a smooth capsule of variable shape. A peristome is either present or absent. The lid is conical or beaked, the kalyptra cap-shaped.
distribution
The family is widespread in the northern and southern hemispheres, mainly in the northern-temperate and tropical-montane zones.
Systematics
Most of the family members of the Aongstroemiaceae were traditionally assigned to the Dicranaceae . The delimitation according to Frey & Stech is based on molecular data; according to morphological characteristics, the family is only poorly defined.
The Aongstroemiaceae counts a total of 14 species, which are divided into 5 genera:
- Aongstroemia with 7 kinds
- Aongstroemiopsis , 1 species in Lesotho and Malaysia
- 4 species dichodontium
- Diobelonella , 1 species Diobelonella palustris
- Polymerodon , 1 species in Bolivia
swell
- 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 .