Aeonium hierrense

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Aeonium hierrense
Aeonium hierrense - University of California Botanical Garden - DSC08936.JPG

Aeonium hierrense

Systematics
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Aeonieae
Genre : Aeonium
Type : Aeonium hierrense
Scientific name
Aeonium hierrense
( RPMurray ) Pit. & Proust

Aeonium hierrense is a species of the genus Aeonium in the thick-leaf family(Crassulaceae).

description

Vegetative characteristics

Aeonium hierrense grows as a perennial , non-branched or rarely little branched, monocarpic subshrub and reaches heights of up to 1.5 meters. The bare, net-like patterned, ascending shoots have a diameter of 20 to 45 millimeters. Their rather flat rosettes reach a diameter of 15 to 60 centimeters. The obovate to lanceolate, green, strongly bluish, almost bare leaves are 8 to 30 centimeters long, 5 to 8 centimeters wide and 0.3 to 0.7 centimeters thick. Towards the tip they are pointed, tapered and often bent back. The base is wedge-shaped. The edge of the leaf is covered with slightly curved eyelashes that are 1 to 2 millimeters long. The leaves are often reddish or pink variegat .

Generative characteristics

The dome-shaped inflorescence has a length of 15 to 20 centimeters and a width of 12 to 50 centimeters. The inflorescence stalk is 5 to 25 inches long. The six- to nine-fold flowers are on a 2 to 6 millimeter long, slightly downy-haired flower stalk . Your sepals are weakly downy hairy. The whitish, lanceolate, pointed petals , often pink in the middle, are 7 to 9 millimeters long and 1.5 to 2 millimeters wide. The stamens are weakly downy hairy.

Chromosome number

The number of chromosomes is 2n = 36.

Systematics and distribution

Aeonium hierrense is widespread on La Palma and El Hierro at heights of up to 1200 meters.

The first description as Sempervivum hierrense by Richard Paget Murray was published in 1899. Charles-Joseph Marie Pitard and Louis Proust put the species in the genus Aeonium in 1909 .

proof

literature

  • Reto Nyffeler: Aeonium hierrense . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 17 .

Individual evidence

  1. Aeonium hierrense at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  2. ^ Journal of Botany, British and Foreign . Volume 37, 1899, pp. 395-396 ( online ).
  3. ^ Joseph Pitard, Louis Proust: Les Iles Canaries. Flore de l'archipel . 1909, p. 191 ( online ).

Web links

Commons : Aeonium hierrense  - collection of images, videos and audio files