Euphorbia bulbispina
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Euphorbia bulbispina |
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| Rauh & Razaf. |
Euphorbia bulbispina is a species of the genus spurge ( Euphorbia ) in the family of Euphorbiaceae (Euphorbiaceae).
description
The succulent Euphorbia bulbispina forms small shrubs up to 30 centimeters high and up to 1 meter in diameter. The trunk reaches a diameter of 3 centimeters at the base. Many branches are formed that taper towards the base. The leaves, which are reddish in color at the edges, are in terminal rosettes and are egg-shaped. They are 17 millimeters long and 15 millimeters wide. The somewhat purple-colored petiole becomes 3 millimeters long. The individually standing stipule spines are 5 millimeters long and are initially a little purple in color. They form a large and spherical base.
The inflorescence consists of single and simple cymes . The egg-shaped and yellow colored cyathophylls are 4 millimeters in size and are spread out. The small cyathia are 3 millimeters in size and the nectar glands are yellow-green in color. The ovary has a short stalk. Nothing is known about the fruits and seeds.
Distribution and systematics
Euphorbia bulbispina is endemic to the north of Madagascar in the Antsiranana area . The species is on the IUCN Red List and is considered endangered (Vulnerable).
The species was first described in 1991 by Werner Rauh and Alfred Razafindratsira . A synonym is Euphorbia milii var. Bulbispina Rauh .
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 124 .
Individual evidence
- ↑ Euphorbia J. Volume 7, p. 31. 1991
Web links
- Euphorbia bulbispina onthe IUCN Red List of Threatened Species .
- Information and location photo for the species at llifle.com