Tylecodon tuberosus
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Tylecodon tuberosus | ||||||||||||
Toelken |
Tylecodon tuberosus is a species of the genus Tylecodon in the family of thick-leaf plants (Crassulaceae).
description
Tylecodon tuberosus grows as a very small plant, reaching up to 15 centimeters in diameter, with bulbous and tapering roots up to 15 millimeters in diameter. The creeping or upright shoots arise from a branched, bulbous base. As a rule, they grow underground, then lie above the ground in some places and then turn gray-green there. The shoots have an erect end, are covered with short, pointed and up to 1 millimeter long phyllopodia and are up to 2 centimeters long and up to 5 millimeters in diameter. The spread, flat and densely hairy leaves form basal rosettes and are 1.3 to 3 centimeters long and 0.5 to 1.2 centimeters wide. The leaf blade is elliptical to obovate and wedge-shaped at the base. The tip is blunt.
The 12 to 30 centimeter high inflorescence consists of upright thyrs with 2 to 8 monochasias . The peduncle is covered with glandular hairs and has a diameter of 2 millimeters at the base. The upright and spread out single flowers stand on 7 millimeter long flower stalks. The tubular corolla is pale greenish brown in color, is 15 to 20 millimeters long and is slightly bulged about in the middle. The extended tips are later bent back.
Systematics and distribution
Tylecodon tuberosus is widespread in South Africa in the Northern Cape Province in the Succulent Karoo . It was first described in 1978 by Helmut Richard Tölken .
literature
- E. van Jaarsveld: Tylecodon . In: Urs Eggli (Ed.): Sukkulenten-Lexikon Volume 4 Crassulaceae (Dickblattgewächse) Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , p. 380.
Individual evidence
- ^ Helmut Richard Tölken: New taxa and new combinations in Cotyledon and allied genera . In: Bothalia . Volume 12, Issue 3, pp. 381-382, 1978 ( PDF ).
Web links
- Photos of the species in the forum at cactuspro.com