Beschorneria

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Beschorneria
Beschorneria yuccoides subsp. yuccoides

Beschorneria yuccoides subsp. yuccoides

Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Beschorneria
Scientific name
Beschorneria
Kunth

Beschorneria is a genus of plants in the subfamily of the agave family (Agavoideae). The botanical name honors the German doctor and botanist Friedrich Wilhelm Christian Beschorner (1806–1873).

description

The species of the genus Beschorneria grow as mostly stemless, only rarely tree-shaped, rhizomatous rosettes and form clumps with age . The more or less linear-lanceolate leaves are narrowed towards the base and expanded there to form a leaf sheath . The tough, bald blade is keeled and runny. It has a fleshy midrib. It is long and soft at the top. The leaf margin is whole or tiny serrated.

The racemose or slightly branched, paniculate inflorescence is straight or overhanging. The shaft and the broad, long bracts are colored red, pink or yellow. The stalked, actinomorphic flowers are pendulous and stand together in two to five distant clusters. Your lanceolate, free, greenish, yellowish or red tepals are inclined and form a tube-like structure. The inner tepals are keeled on the outside and papillous or finely downy on the inside . The thread-thin papillary stamens are slightly thickened at the base and about as long as the tepals. The anthers are more or less elongated. The under continuous, elongated ovary is triangular, and sechsfurchig dreifächrig. The thread-thin, papillary pen is as long as the stamens or longer. The indistinct three-lobed scar is ciliated.

Cylindrical loculicidal capsules are formed which contain plano-convex, flat, glossy black to blackish seeds .

The base chromosome number is x = 30.

Systematics and distribution

The genus Beschorneria is common in Mexico and partly also in Guatemala and Honduras. The plants colonize dry, rocky woodland up to the cloud forests of the high mountains.

The first description by Karl Sigismund Kunth was published in 1850. The following species belong to the genus Beschorneria :

proof

literature

Individual evidence

  1. ↑ Enumeratio Plantarum Omnium Hucusque Cognitarum, Secundum Familias Naturales Disposita, Adjectis Characteribus, Differtiis et Synonymis . Volume 5, p. 844, Stuttgart and Tübingen 1850
  2. ↑ Urs Eggli (Ed.): Succulents Lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 75-77 .

Web links

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