Aeonium simsii

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Aeonium simsii
Aeonium simsii P1050451.JPG

Aeonium simsii

Systematics
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Aeonieae
Genre : Aeonium
Type : Aeonium simsii
Scientific name
Aeonium simsii
( Sweet ) Stearn

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

description

Vegetative characteristics

Aeonium simsii grows as a perennial , lawn-like rosette plant . The smooth, strong shoots are bare. Their cup-shaped rosettes reach a diameter of 4 to 12 centimeters. The lanceolate, yellowish green, slightly downy-haired leaves are 2 to 6 inches long, 0.6 to 2 inches wide and 0.15 to 0.2 inches thick. They are pointed towards the tip. The base is wedge-shaped. The underside of the leaf shows clear, brownish, tannic longitudinal stripes. The edge of the leaf is covered with conical eyelashes that are 1 to 2.5 millimeters long.

Generative characteristics

The densely leafed inflorescence appears from basal rosette axils. It has a length of 2 to 5 centimeters and a width of 2 to 8 centimeters. The inflorescence stalk is 5 to 30 centimeters long. The seven to nine-fold flowers are on a 1 to 9 millimeter long, bare flower stalk . Their sepals are bare. The yellow, inverted lanceolate, pointed petals are 5 to 6 millimeters long and 1.2 to 1.8 millimeters wide. The stamens are bare.

Chromosome number

The number of chromosomes is 2n = 36.

Systematics and distribution

Aeonium simsii is distributed in Gran Canaria at altitudes of 500 to 1900 meters.

The first description as Sempervivum simsii by Robert Sweet was published in 1818. William Thomas Stearn put the species in the genus Aeonium in 1951 .

The species name honors the British doctor and botanist Dr. John Sims (1749-1831).

proof

literature

  • Reto Nyffeler: Aeonium simsii . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 19 .

Individual evidence

  1. ^ Aeonium simsii at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  2. ↑ Hortus suburbanus Londinensis . 1818, p. 230 ( online ).
  3. ↑ The Gardeners' Chronicle . 3rd episode, Volume 130, 1951, p. 169.
  4. ↑ Urs Eggli , Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer-Verlag Berlin, Heidelberg, New York. Page 222, 2004. ISBN 3-540-00489-0

Web links

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