Scorpidium revolvens
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Scorpidium revolvens |
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| ( Sw. ) Hedenäs |
Scorpidium revolvens (German Rollblättriges Scorpio Moss ) is a moss - kind from the family Scorpidiaceae . A frequently occurring synonym is Drepanocladus revolvens (Sw.) Warnst.
features
Scorpidium revolvens forms with its medium-vigorous to vigorous plants loose to moderately dense, green or reddish to black-red lawns, with reddish colors being common. The ascending to upright stems are usually little or irregularly branched. They have a hyaline outer cortex. The leaves are hollow, narrowed from an egg-shaped base to the tip, curved sickle-shaped and have finely serrated, otherwise smooth edges near the tip of the leaf. The simple, relatively thin to moderately strong rib ends in the upper half of the leaf.
The lamina cells in the middle of the leaf are linear, 60 to 140 (maximum 180) micrometers long, speckled, the cell ends long and tapering and mostly overlapping each other. The few (2 to 10) wing cells are hyaline, highly inflated and very decrepit.
The gender distribution is autocratic , capsules are rare. The seta is up to 4 centimeters long, the oblong, egg-shaped capsule is slightly curved and inclined over the upright neck, the capsule lid is arched with a sharp point. The spore size is 13 to 21 micrometers.
Location claims and distribution
Scorpidium revolvens has only recently been consistently differentiated from the quite similar Scorpidium cossonii at species level. The level of knowledge about ecology and distribution are therefore insufficient.
The species is much rarer than Scorpidium cossonii in Germany, Austria and Switzerland . It grows from the plain to over the tree line in base-rich, often lime-poor, wet to very wet, springy locations, often in low and intermediate bogs, often submerged or overflowing. The moss in Germany is currently threatened by amelioration, eutrophication and interventions in the habitat.
Distribution areas are Europe, North, East, Central and Western Asia, New Guinea, North and South America, New Zealand.
literature
- Nebel, Philippi: The Mosses of Baden-Württemberg Volume 2 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3530-2 , page 322f
