Afrovivella semiensis
| Afrovivella semiensis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name of the genus | ||||||||||||
| Afrovivella | ||||||||||||
| ( J.Gay ex A.Rich. ) A.Berger | ||||||||||||
| Scientific name of the species | ||||||||||||
| Afrovivella semiensis | ||||||||||||
| A. Berger |
Afrovivella semiensis is the only plant species of the monotypic genus Afrovivella in the family of thick-leaf plants (Crassulaceae). The botanical name of the genus is derived from the Latin word "africa" for the continent Africa and the name of the genus Sempervivella . He refers to the distribution area of the genus in Africa and the similar rosette-forming genus Sempervivella (which today belongs to the genus Sedum ).
description
Afrovivella semiensis is a perennial herbaceous plant that forms stemless rosettes with slender tap roots . The more or less flat rosettes reach a diameter of 1.5 to 4 centimeters. The plants are sprouting and form dense cushions through up to 8 centimeters long, dark brown and brittle runners . The spatulate, light green, bald or glandular-hairy leaves stand loosely together and are 1 to 2 centimeters long. They have a more or less triangular tip and end in a short or long attached tip. There are long, whitish, stiff or flexible eyelashes on the edges of the leaves.
The lateral inflorescence consists of reduced thyrses that are 1 to 5 centimeters long and consist of one to five flowers . The 1.2 to 1.8 centimeters long, bell-shaped single flowers are five to seven-fold and glandular on the outside. Their white petals , with a reddish tinge on the outside, are fused together over a third of their length and have an attached tip. The nectar scales are elongated and needle-shaped, the carpels slender.
Systematics and distribution
Afrovivella semiensis is distributed in Ethiopia in the Simien Mountains and grows there at altitudes of 3500 to 3700 meters. The only species of the genus was first described under the name Umbilicus semiensis . Alwin Berger established the new genus Afrovivella for the species .
Further synonyms are Rosularia semiensis (J.Gay ex A.Rich.) H.Ohba and Umbilicus semiensis J.Gay ex A.Rich.
proof
literature
- Urs Eggli (ed.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 21 .
Individual evidence
- ↑ Tentamen Florae Abyssinicae see Enumeratio Plantarum hucusque in plerisque Abyssiniae .
- ^ Adolf Engler , Karl Anton Eugen Prantl : The natural plant families . 2nd edition, Volume 18a, pp. 466-467, 1930