Hoppe's lady's mantle
| Hoppe's lady's mantle | ||||||||||||
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Alchemilla hoppeana in the Rennsteiggarten near Oberhof / Thuringia |
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| Scientific name | ||||||||||||
| Alchemilla hoppeana | ||||||||||||
| ( HGLReichenbach ) Dalla Torre |
Hoppe's lady's mantle ( Alchemilla hoppeana ) is a species from the genus of the lady's mantle ( Alchemilla ).
features
Hoppe's lady's mantle is a thin and dainty in all parts, mostly medium-sized plant. The leaf blades of the basal leaves have a width of 2.5 to 8 centimeters and are kidney to circular, 235 ° to 300 ° comprehensive, flat and not wrinkled. They are seven to nine parts on 72 to 95 percent of the radius. These sections are linear-wedge-shaped to oblong-obverse-shaped and usually widest at the tip, less often in the middle. They are 2 to 8, rarely up to 11 millimeters wide, 1.6 to 5 times as long as they are wide, rounded to truncated with mostly three end teeth protruding from the neighbors and five to nine, rarely up to twenty. The length of the teeth is 0.3 to 1.6 millimeters, which corresponds to 2.5 to 7%, rarely up to 10% of the spreading radius, 0.7 to 3 millimeters wide and 0.4 to 2 times as long as wide except for the end tooth, which is 1.2 to 3.5 times as long as it is wide, and very pointed. The lower teeth are straight, but the end teeth are usually strongly bent and crooked. The stem is 6 to 30 inches long, erect and 1 to 2 times as long as the leaf stalks . The width of the largest stem leaf reaches up to 15% of the stem length. The stipules of the uppermost stem leaf are two to six lobed. The partial inflorescences are distributed over a large area of the stem. In large plants they are pseudo-eared between the branches . The flower stalks are 1 to 3, rarely up to 5 millimeters long. The flowers are green to yellow-green, 2 to 4 millimeters long and 3 to 4 millimeters wide. The sepals are 1 to 1.8 times as long as they are wide and 0.67 to 1 times as long as the sepal cup . At last they are spread out horizontally or bent back. The fruits are nuts that protrude 40% of their length.
The number of chromosomes is 2n = 120-128.
distribution
Hoppe's lady's mantle occurs in the Northern Limestone Alps on the eastern and western fringes of the Alps . The species is also rarely found in the Savoy , Jura , Black Forest and Vosges Mountains .
In the Eastern Alps it can be found in the Dead Mountains , Dachstein Massif , Karwendel and the Berchtesgaden Alps , in the Prealps on the Benediktenwand , in the Swiss Alps in the cantons of Friborg and Vaud , in the Jura in the cantons of Vaud, Solothurn , Bern and Jura as well as near Geneva .
The vertical distribution ranges from the high-montane to the subalpine level at altitudes between 1000 and 1600 meters. The finds from the Black Forest come from altitudes between 1160 and 1400 meters.
habitat
The species grows in crevices, on stony mats and between blocks and tall perennials. Most of the subsoil consists of lime, porphyry and other silicate stones. The location is mostly sunny, moist and protected, the soils are fresh to moist, rarely trickling wet, stony, lime or base-rich and (moderately) nutrient-rich, humus clay soils. Hoppe's lady's mantle can be found in the plant sociological associations Seslerion variae , Erico-Pinion (e.g. in the Karwendel Mountains together with Pinus mugo (mountain pine), Salix glabra (bare willow) and Dactylorhiza maculata (spotted orchid)) and in the Adenostylion alliariae . In the Vosges it grows in beech forests on porphyry between boulders in the Potentillion caulescentis together with Saxifraga paniculata (panicle saxifrage ), Hieracium humile (low hawkweed) and Amphidium mougeotii (large ribbon moss), in the Black Forest in the Caricetum frigidae .
Systematics
Alchemilla hoppeana was first described in 1832 by Ludwig Reichenbach as Alchemilla alpina var. Hoppeana . Karl Wilhelm von Dalla Torre classified it as a separate species in 1882. Is named Alchemilla hoppeana after the German botanist David Heinrich Hoppe .
literature
- Sigurd Fröhner: Alchemilla . In: Hans. J. Conert et al. a. (Ed.): Gustav Hegi. Illustrated flora of Central Europe. Volume 4 Part 2B: Spermatophyta: Angiospermae: Dicotyledones 2 (3). Rosaceae 2 . Blackwell 1995, pp. 228-230. ISBN 3-8263-2533-8
Individual evidence
- ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 557.
Web links
- Hoppe's lady's mantle. In: FloraWeb.de.
- Distribution map for Germany. In: Floraweb .