Rhytidiadelphus subpinnatus
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Rhytidiadelphus subpinnatus is a pleurocarpic deciduous moss from the Hylocomiaceae family . German names are Feathered Wrinkle Brother or Feathered Kranzmoos .
features
The species forms loose lawns. The strong plants are up to 15 cm long. The orange to red-brown stems are clearly visible through the loose leaves. They are usually pinnate almost regularly. The branches, which are arching and thinning towards the tips, are up to about 2 centimeters long. The stem leaves are up to 3 millimeters long, slightly or slightly longitudinally wrinkled and suddenly narrowed from a heart-shaped to broadly egg-shaped base into the bent-back tip of the leaf. The leaf margins are serrated above, the double leaf rib reaches about a third of the leaf length. Branch leaves are smaller, slightly curved back, ovate-lanceolate and gradually pointed or rapidly narrowed. The leaf cells are linear, the clearly different leaf wing cells are shorter and wider.
Sporophytes are rare, spore ripening time is in winter.
Systematics
The moss was previously considered a variety of Rhytidiadelphus squarrosus ( subsp. Calvescens or var. Calvescens ). Today it is mostly recognized by bryologists as an independent species.
Location requirements
Suitable growth locations are mostly shady, weak to moderately acidic and moderately nutrient-rich, fresh to moist or well-swollen areas in bog forests and floodplains, in coniferous or mixed forests, in tall herbaceous vegetation and subalpine dwarf shrub heaths. In contrast to Rhytidiadelphus squarrosus , however, almost only natural to largely natural locations are populated.
distribution
Rhytidiadelphus subpinnatus is widespread in the northern hemisphere. Occurrences are given from Western, Central, Northern and Eastern Europe, the Azores, Turkey, the Caucasus, Northeast and East Asia and North America.
The occurrences in Germany, Austria and Switzerland are insufficiently known due to the lack of differentiation from Rhytidiadelphus squarrosus . The main distribution is in the higher elevations of the low mountain ranges and in the Alps, here the species seems to be not rare; isolated occurrences are known in the hill country.
literature
- Jan-Peter Frahm, Wolfgang Frey, J. Döring: Moosflora . 4th edition, UTB Verlag, 2004, ISBN 3-8252-1250-5 , p. 519
- Nebel, Philippi: The Mosses of Baden-Württemberg Volume 2 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3530-2 , p. 509ff
