Small cornice lily

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Small cornice lily
On the lava field Dimmuborgir 6059.JPG

Lesser cornice lily ( Tofieldia pusilla )

Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Frog-spoon-like (Alismatales)
Family : Corn lily family (Tofieldiaceae)
Genre : Ledge lilies ( Tofieldia )
Type : Small cornice lily
Scientific name
Tofieldia pusilla
( Michx. ) Pers.

The lesser lily ( Tofieldia pusilla ) is a species of plant from the lily family (Tofieldiaceae).

description

The lesser ledge lily grows as a perennial herbaceous plant and reaches heights of between 5 and 12 cm. The basal leaves are riding, linear, sword-shaped, short pointed, almost blunt, have three to five longitudinal nerves and reach between 1 and 5 (up to 8) centimeters in length and 3 millimeters in width. The stem is upright and only leafed at the base.

The inflorescence is a mostly head-packed, 0.5 to 2 centimeter long cluster and is composed of 5 to 10 (up to 35) 1 to 3 millimeter long stalked flowers . The flowers are each in the axilla of a whitish, three-lobed bract . A calyx-like cover sheet at the base of the flowers is missing. The whitish to greenish bracts are 1.5 to 2.5 millimeters long. The stamens are about the same length as the tepals . The ovary is ellipsoidal with 0.3 to 0.4 mm long styluses. The capsule fruit is 2.5 to 3 millimeters long and almost spherical. The seeds are 0.6 to 0.8 millimeters long.

The flowering period in Central Europe extends from July to August.

The lesser eagle lily is diploid with a chromosome number of 2n = 30.

Occurrence

The circumpolar arctic-alpine distribution area of ​​the small rush lily includes Iceland, Scandinavia, northern Siberia, Alaska, northern Canada and Greenland; in the Urals and the Rocky Mountains it extends further south. In addition, the species is also found in Europe in Great Britain, especially in Scotland, and in the Alps. In Germany, several occurrences are known from the Berchtesgaden Alps, there are also individual occurrences in the Wetterstein and Karwendel mountains. In 2003 the species was discovered in the Allgäu Alps on Hornbachjoch against the Jochspitze.

The lily lily is preferred on lime, but sometimes also on substrates that are poor in lime. It settles in the Alps seeping through spring moors, snow valleys and cushion sedge lawns at altitudes between 1,600 and 2,600 meters. It is locally a character species of the Kobresietum simpliciusculae from the association Caricion bicolori-atrofuscae, but also occurs in societies of the Seslerion association and is supra-regional but a character species of the order Tofieldietalia.

The small field lily is rated “R” (extremely rare) in the Red Lists of Endangered Species in Germany and Bavaria.

Hybrids

The lesser bay lily forms hybrids when common with other bay lily species ( Tofieldia ) :

  • Tofieldia × hybrida Kerner ( Tofieldia calyculata × Tofieldia pusilla , Syn.Tofieldia pusilla subsp. Austriaca Kunz ) in the Alps.
  • Tofieldia coccinea × pusilla in North America.

Individual evidence

  1. ↑ a b c d e f Karl Suessenguth: Illustrated flora of Central Europe. Founded by Gustav Hegi . Volume II: Monocotyledones, Part II. JF Lehmanns, Munich / Berlin 1939, p. 239.
  2. ↑ a b c d e Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 122 .
  3. ^ A b c Manfred A. Fischer, Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol . 3rd, improved edition. Province of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 , p. 1032 .
  4. ^ A b c John G. Packer: Tofieldia. In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico . Volume 26: Magnoliophyta: Liliidae: Liliales and Orchidales . Oxford University Press, New York / Oxford a. a. 2002, ISBN 0-19-515208-5 , pp. 60-62 (English, online ).
  5. ^ A b William Thomas Stearn : Tofieldia. 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 , pp. 15–16 (English, limited preview in Google Book Search).
  6. ^ Hultén & Fries (1986)
  7. ↑ Little ledge lily. In: FloraWeb.de.
  8. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 2, IHW, Eching bei München 2004, ISBN 3-930167-61-1 , p. 17.
  9. ↑ Martin Scheuerer, Wolfgang Ahlmer: Red list of endangered vascular plants of Bavaria with regionalized flora list (= series of publications. Bavarian State Office for Environmental Protection. Volume 165). 2003, ISBN 3-936385-58-0 .

Web links

Commons : Little Rush Lily ( Tofieldia pusilla )  - Album with pictures, videos and audio files