Apometzgeria pubescens
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Apometzgeria pubescens is a liverwort species from the Metzgeriaceae family . German names are Filz-Igelhaubenmoos, Behaartes Filzigelhaubenmoos or Samtiges Igelhauben-Lebermoos. A synonym is Metzgeria pubescens (closet) Raddi.
Identifying features
The moss forms yellowish green, prostrate, dense and often extensive lawns. The linear, about 1 to 1.5 mm wide and 2 to 3 cm long thalli have a midrib. They are bifurcated, with the branches being of different strengths, thus forming a main axis with several secondary branches. The thallus wings on both sides of the rib consist of only one layer of cells, the rib is multi-layered. The entire thallus is densely covered with upright hair, which gives the moss a velvety appearance. The middle thallus cells are about 20 to 45 µm in size. The cross section of the rib consists of several layers of cells of roughly the same size. The diocesan moss does not breed and only rarely forms sporophytes .
Location requirements
Apometzgeria pubescens grows almost exclusively in forests in fresh to moist and shady locations in humid locations. Here it colonizes mostly alkaline, calcareous rock, furthermore alkaline bark of deciduous trees, especially sycamore maple ( Acer pseudoplatanus ) and common beech ( Fagus sylvatica ). It is not uncommon for it to grow on the sprouts of other deciduous mosses, such as Anomodon viticulosus , Neckera crispa or Thamnobryum alopecurum .
distribution
Apometzgeria pubescens occurs in Europe mainly in the western, central and eastern parts. The distribution limits to the north are Ireland, Scotland, central Norway and Poland, in the south the northern Mediterranean area, in the east Romania and Bulgaria. In Europe it is quite common in the montane to high montane areas of the limestone mountains, otherwise rare. Worldwide it still occurs in large parts of Asia and in North and South America.
literature
- Nebel, Philippi: Die Moose Baden-Württemberg Volume 3. Ulmer Verlag, 1st edition, 2005, ISBN 3-8001-3278-8 .
- Ruprecht Düll / Barbara Düll-Wunder: Determine mosses easily and reliably. Quelle & Meyer Verlag, Wiebelsheim, ISBN 978-3-494-01427-2 .
- Jan-Peter Frahm , Wolfgang Frey , J. Döring: Moosflora. 4th edition, UTB für Wissenschaft, Ulmer, Stuttgart 2004, p. 106. ISBN 3-8252-1250-5 .
