Stapelia vetula
| Stapelia vetula | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stapelia vetula , illustration |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Stapelia vetula | ||||||||||||
| Masson |
Stapelia vetula is a species of the subfamily of the silk plant family (Asclepiadoideae).
features
Stapelia vetula forms stem succulents , up to 20 cm high shoots that are green to gray-green and purple. The habit is compact. They measure about 1 to 1.5 cm in diameter and have four ribs. The surface is bare. The leaflets fall off quickly and leave a whitish scar. The peduncle is short (1–2 cm) and thick. The sepals are 4 to 8 mm long and hairy slightly downy. The corolla measures up to 6 cm in diameter and has a red to black-red color, sometimes with faint, widely spaced, clearly lighter horizontal wrinkles. It is slightly sunk in the middle and usually strongly curved outwards. The crown lobes are up to 2.3 cm long and bare on the outside. The edges are bent outwards and slightly hairy, the tips are bare on the inside. The secondary crown is short-stalked; the interstaminal coronary lobes measure 3.5–6 × 1.5–4.5 mm. They are approximately rectangular or spade-shaped and apically truncated with a serrated or notched edge. The staminal coronet lobes are 6 to 8 mm long with thread-like apical processes. The dorsal wings are relatively wide. The pollinium measures 0.7–0.8 × 0.45–0.5 mm, has the shape of a D and is more or less pointed apically.
The fruits have a bare, slightly shiny surface.
The number of chromosomes is 2n = 22.
distribution
The species is originally only found in the Western Cape Province of South Africa .
Synonyms
The species was first described by Francis Masson in 1797. Synonyms are: Tridentea simsii Haworth and Stapelia nudiflora Pillans .
literature
- Focke Albers and Ulli Meve (eds.): Succulent lexicon Volume 3 Asclepiadaceae (silk plants) . Ulmer, Stuttgart 2002, 322 pages, ISBN 978-3-8001-3982-8 .
Individual evidence
- ↑ Stapelia vetula at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis