Lepismium micranthum

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Lepismium micranthum
Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Cactoideae
Tribe : Rhipsalideae
Genre : Lepismium
Type : Lepismium micranthum
Scientific name
Lepismium micranthum
( Vaupel ) Barthlott

Lepismium micranthum is a species of the genus Lepismium in the cactus family(Cactaceae).

description

Lepismium micranthum grows lithophytically and shrubby with initially upright, later spreading to hanging, richly branched, up to 1 meter and more long shoots . The two- to three- sided shoot segments are lobed at their edges. They are up to 20 centimeters long and 1.5 to 2 centimeters in diameter. The areoles, which are not deeply sunk into the notches, are covered with dense yellowish wool. Of the up to six thorns emerging from them , some are twisted and flattened.

The broad, tubular, purple-colored flowers appear at the tips of older shoots and only partially open. Your well-defined flower tube is up to 1.2 centimeters long. Your pericarpel is covered with wool and some bristles. The spherical or elongated, somewhat winged, red fruits are covered with some wool and a few thorns.

ecology

The flowers are pollinated by hummingbirds .

Distribution, systematics and endangerment

Lepismium micranthum is widespread in the Peruvian region of Puno at altitudes of 2000 to 2500 meters.

It was first described as Cereus micranthus in 1913 by Friedrich Karl Johann Vaupel . Wilhelm Barthlott placed Art in 1987 in the genus Lepismium . Nomenclatory synonyms are Acanthorhipsalis micrantha (Vaupel) Britton & Rose (1923), Lymanbensonia micrantha (Vaupel) Kimnach (1984) and Pfeiffera micrantha (Vaupel) PVHeath (1994).

In the Red List of Threatened Species of IUCN is the species as " Endangered (EN) ," d. H. listed as endangered.

proof

literature

  • Edward F. Anderson : The Great Cactus Lexicon . With a foreword by Wilhelm Barthlott and an article by Roger Brown on cactus cultivation and care. Translated from English, supplemented and revised by Urs Eggli. Ulmer , Stuttgart 2005, ISBN 3-8001-4573-1 , p. 353 (English: The cactus family . Portland 2004. Translated by Urs Eggli ).

Individual evidence

  1. ^ Botanical yearbooks for systematics, plant history and plant geography . Volume 50, number 2-3, Beiblatt 111, Leipzig 1913, pp. 19-20 (online) .
  2. ^ Wilhelm Barthlott: New names in Rhipsalidinae (Cactaceae) . In: Bradleya . Volume 5, 1987, p. 99.
  3. ^ Pfeiffera micrantha in the IUCN Red List of Threatened Species 2013.2. Posted by: Cáceres, F., 2011. Retrieved January 26, 2014.

Web links