Aloe yavellana
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Aloe yavellana is a species of aloes in the subfamily of the Affodil family (Asphodeloideae). The specific epithet yavellana refers to the occurrence of the species near Yavello in Ethiopia.
description
Vegetative characteristics
Aloe yavellana grows trunk-forming and branches out from the base. The trunk is erect to a length of 1 meter, then it becomes prostrate and up to 3 meters long and 4 centimeters thick. The approximately 16 to 20 sword-shaped narrowed leaves are scattered on the top 20 centimeters on the shoots. The bronze-brown leaf blade , lighter in the shade, is up to 40 centimeters long and 6 to 8 centimeters wide. The underside of the leaf is lighter bronze brown to cloudy brownish green and lined with green near the base. The leaf surface is smooth. The piercing, light reddish brown teeth on the leaf margin are 2 to 3 millimeters long and 10 to 15 millimeters apart. The leaf sheaths are striped. The leaf juice dries yellow.
Inflorescences and flowers
The inflorescence has eight to ten branches and reaches a length of 60 to 90 centimeters. The lower branches are branched again. The dense, heady or almost heady grapes are 2 to 3 centimeters long. The deltoid bracts have a length of 3 millimeters and are 2 millimeters wide. The scarlet flowers at their base are lighter to orange in color and stand on 10 millimeter long flower stalks . They are 27 millimeters long and narrowed at their base. At the level of the ovary , the flowers are 5 to 6 millimeters in diameter. Above this they are slightly narrowed and finally slightly widened towards the mouth, which is slightly upwardly curved. Your outer tepals are not fused together over a length of 9 millimeters. The stamens and the pen stand out 1 to 2 millimeters from the flower.
Systematics and distribution
Aloe yavellana is common in Ethiopia in forests, in clearings or on rocks at altitudes of 1700 to 1950 meters.
The first description by Gilbert Westacott Reynolds was published in 1954.
Hazards and protective measures
Due to the destruction of its habitat, this species is endangered. To protect the species, protected areas were designated in their natural habitat, and this species is also cultivated in botanical gardens.
proof
literature
- Susan Carter , John J. Lavranos , Leonard E. Newton , Colin C. Walker : Aloes. The definitive guide . Kew Publishing, Royal Botanic Gardens, Kew 2011, ISBN 978-1-84246-439-7 , pp. 629 .
- Leonard Eric Newton: Aloe yavellana . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 192-193 .
Individual evidence
- ↑ Gideon F. Smith, Colin C. Walker, Estrela Figueiredo: What's in a name: epithets in Aloe L. (Asphodelaceae) and what to call the next new species . In: Bradleya . Volume 28, 2010, p. 102.
- ^ Journal of South African Botany . Volume 20, number 1, Kirstenbosch 1954, pp. 28–30, plate 4.
- ↑ Aloe yavellana in the IUCN Red List of Threatened Species 2013.2. Posted by: Weber, O. & Sebsebe Demissew, 2010. Retrieved May 18, 2014.
Web links
- Photos of habit and flower