Euphorbia ankarensis
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Euphorbia ankarensis |
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| Scientific name | ||||||||||||
| Euphorbia ankarensis | ||||||||||||
| Boiteau |
Euphorbia ankarensis is a species of the genus spurge ( Euphorbia ) in the family of Euphorbiaceae (Euphorbiaceae).
description
The succulent Euphorbia ankarensis grows up to a meter in height with simple and approximately three centimeters thick shoots. The corky surface of the shoots cracks, is gray in color and densely covered with about eight vertical rows of leaf scars. The egg-shaped leaves are in a terminal rosette, are about eight inches long and four inches wide. They are short-lived and have a one centimeter long, only slightly hairy petiole. The stipules are transformed into rows of vertically standing and densely branched bristles.
Almost terminal cymes are formed, which are usually twofold bifurcated. They are almost sitting, more or less drooping and are close to the tip of the shoot. The yellow-green to almost purple cyathophylls are 15 millimeters wide and 16 millimeters long. They surround the up to five millimeters large cyathia . The elliptical nectar glands are yellowish in color and the ovary is almost sessile. Nothing is known about the fruit and the seed.
Distribution and systematics
Euphorbia ankarensis is endemic to northwest Madagascar , distributed in crevices on limestone cliffs. The species is on the IUCN Red List and is endangered.
The species was first described in 1942 by Pierre L. Boiteau .
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 112 .
Individual evidence
- ^ Bulletin de l'Académie Malgache. New series 24, p. 86, 1942
Web links
- Euphorbia ankarensis onthe IUCN Red List of Threatened Species .
- Photos and data on the species at euphorbia.de