Cotyledon barbeyi
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Cotyledon barbeyi |
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| Pigf. ex Baker |
Cotyledon barbeyi is a species of the genus Cotyledon in the thick-leaf family(Crassulaceae). The specific epithet barbeyi honors William Barbey (1842–1914), a Swiss botanist and philanthropist.
description
Cotyledon barbeyi forms upright and branched shrubs that reach a height of 0.5 to 2.0 meters. The ascending shoots reach a diameter of up to 25 millimeters at the base and have a yellow-brown, peeling bark. The very variable leaves are lanceolate to linear, flat to runny on the upper side, the surface is bald to hairy and occasionally covered with glandular hair. At the base they are wedge-shaped, at the top there are attached tips and they are 4 to 28 centimeters long and 1 to 4.5 centimeters wide. The petiole is missing or is only very short and descending on the stem.
The 20 to 60 centimeter high inflorescence consists of 3 to 5 dichasias . 1 to 2 pairs of bracts are formed per inflorescence stalk , which are 22 millimeters long and 5 millimeters wide. The green sepals are 6 × 4 millimeters and the tubular and orange to red corolla are 20 to 25 millimeters in size. The basal inflated tube has swellings about 5 mm long between the sepals and is 14 to 18 millimeters long. The bent-back corolla lobes are 15 millimeters long. The stamens are 27 to 36 millimeters long and protrude 5 to 14 millimeters. The spherical anthers are colored yellow. The carpel becomes 28 millimeters long. The spread out nectar flakes are elongated, yellow-green in color and are 4 to 5 × 1.5 millimeters in size.
Distribution and systematics
Cotyledon barbeyi is widespread on rocks in the savannah in southern and eastern Africa and in the southwest of the Arabian Peninsula .
The first description by Georg Schweinfurth was published in 1893.
Synonyms are Cotyledon wickensii Schönland (1915), Cotyledon transvaalensis Guillauminl (1936) and Cotyledon sturmiana von Poellnitz (1939).
Several cultivars are known of the very variable species :
- 'Blouberg', the bald and obovate leaves are up to 8 × 4.5 centimeters in size, the leaf margin has a few large waves; comes from the Northern Cape province of Blouberg
- 'Dikblaar', forms large, robust plants, the heavy, large, gray-haired leaves are 12 × 4.5 centimeters in size
- 'Golf edge', the bald and elliptical leaves are 12.5 × 5 centimeters in size, the leaf edge is finely corrugated in the upper third
- 'Langblaar', the long, bare and linear-lanceolate leaves are curved, shiny green and runny. They will be 25.5 × 1.5 centimeters in size. The compact inflorescence becomes 12 to 13 inches long; comes from the Strijdom tunnel in the Mpumalanga province
- 'Steelpoort', the hairy, oblong obovate leaves are green and are 11.5 × 4.5 centimeters in size. The upper part of the leaf margin is slightly wavy; comes from Steelpoort in the Mpumalanga province
proof
literature
- Urs Eggli (ed.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 25 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 22.
- ^ JG Baker: New or Noteworthy Plants. In: The Gardeners' Chronicle . Volume 13, 1893, p. 624 ( online ).
Web links
- Information on the species at PlantZAfrica.com