Nude song

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Nude song
Kobresia myosuroides - Botanical Garden in Kaisaniemi, Helsinki - DSC03525.JPG

Naked song ( Kobresia myosuroides )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Scale sedge ( Kobresia )
Type : Nude song
Scientific name
Kobresia myosuroides
( Vill. ) Fiori

The naked sedge ( Kobresia myosuroides (Vill.) Fiori ; Syn .: Elyna myosuroides (Vill.) Fritsch , Carex myosuroides Vill. ) Is, also known as the naked sedge or alpine corn-head , a plant species from the genus of the common barnacles ( Kobresia ) within the family the sour grass family (Cyperaceae). It is widespread in the northern hemisphere .

description

Illustration from Atlas of Alpine Flora

The naked sied grows as a perennial herbaceous plant and reaches stature heights of 5 to 20, rarely up to 30 centimeters. It has a rigid “rhizome”. The species forms numerous upright stems that are round or bluntly triangular, about 0.5 millimeters thick and only leafy at the base. The leaves are bristle-shaped and often as long or longer than the stem. At the bottom, the naked reed has brown-yellow leaf sheaths that are shiny leather-like.

The flowering period extends from June to August, rarely longer. The only terminal, spiked inflorescence is 1 to 3 inches long and 2 to 3 millimeters wide and contains about 10 to 20 spikelets . These contain male or female flowers or both. The female flowers have a bract which is fused at the base with the edges and encloses them like a tube. The number of stamens is two or three, the stigma three.

The nut fruit is triangular and prickly at the top due to the remains of the stylus.

The number of chromosomes is 2n = 56.

Occurrence and ecology

The nude song is widespread in the northern hemisphere . It thrives in the Arctic in Europe , Siberia , Greenland, and North America . It is also found in the mountains of Europe, Asia and North America.

The Nacktried is a grass-forming plant of the high alpine level. It thrives on wind-sheared ridges on frost-dry, base-rich, but mostly superficially decalcified acidic soils at an optimum of pH 6. It forms a conspicuous plant community here, the Elynetum Br.-Bl. 1913 (order Elynetalia Oberd. 57, class Carici rupestris- Kobresietea bellardii Ohba 74), which was recognized as typical early in the history of plant sociology. The first to describe this plant society were the Swiss botanists Heinrich Brockmann-Jerosch , Eduard August Rübel and Josias Braun-Blanquet .

The nude song is very resistant to snow abrasion. It grows in the Alps at altitudes between 1220 and 3180 meters. In the Allgäu Alps, it only thrives below 2000 meters above sea level, as in the Höfats in Bavaria at 1547 meters above sea level.

The Nackried is the only known sourgrass that can enter into an ecto mycorrhiza . Cenococcum geophilum , the earth-wax crust ( Sebacina incrustans ) and Tomentella spec. Were found as fungal partners in a glacier foreland . proven.

Taxonomy

It was first published by Dominique Villars under the name ( Basionym ) Carex myosuroides . The new combination Kobresia myosuroides (Vill.) Fiori was published by Fiori . Other synonyms for Kobresia myosuroides (Vill.) Fiori are: Kobresia bellardii (All.) Degl. ex Loisel. , Elyna bellardii (All.) K. Koch , Elyna myosuroides (Vill.) Fritsch .

literature

  • Wolfram Schultze Motel: Kobresia. P. 92–96, In: Wolfram Schultze-Motel (Hrsg.): Illustrierte Flora von Mitteleuropa. Pteridophyta, Spermatophyta. Founded by Gustav Hegi. 3rd, completely revised edition. Volume II. Part 1: Angiospermae: Monocotyledones 2 (Cyperaceae - Juncaceae), Paul Parey, Berlin / Hamburg 1967–1980, ISBN 3-489-54020-4 .
  • Arthur Oliver Chater: Kobresia. Pp. 289-290. In: TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea. Volume 5: Alismataceae to Orchidaceae (Monocotyledones) , Cambridge University Press, Cambridge 1980, ISBN 0-521-20108-X .
  • Peter William Ball: Kobresia. Kobresia myosuroides , p. 253 - the same text online as the printed work , In: Flora of North America Editorial Committee (Hrsg.): Flora of North America North of Mexico. Volume 23: Magnoliophyta: Commelinidae (in part): Cyperaceae , Oxford University Press, New York and Oxford, 2002, ISBN 0-19-515207-7 .
  • Shuren Zhang, Henry J. Noltie: Kobresia. Kobresia myosuroides , p. 280 - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (ed.): Flora of China. Volume 23: Acoraceae through Cyperaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 2010, ISBN 978-1-930723-99-3 .
  • Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas. With the collaboration of Angelika Schwabe, Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 .

Individual evidence

  1. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 237.
  2. ^ O. Mühlmann, U. Peintner: Ectomycorrhiza of Kobresia myosuroides at a primary successional glacier forefront. In: Mycorrhiza , Volume 18, 2008, pp. 355-362.

Web links

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