Aloe gilbertii
| Aloe gilbertii | ||||||||||||
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| Scientific name | ||||||||||||
| Aloe gilbertii | ||||||||||||
| T. Reynolds ex Sebsebe & Brandham |
Aloe gilbertii is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet gilbertii honors the British botanist Michael George Gilbert (* 1943), who collected the type specimen.
description
Vegetative characteristics
Aloe gilbertii grows without a stem or usually with a short stem, is only rarely simple, usually sprouts and forms dense, spreading clumps. The ascending trunks reach a length of up to 150 centimeters. The rising leaves that are slightly bent back at the tip form a dense rosette . The dark green or gray-green, often brown or mauve-colored leaf blade is 40 to 50 centimeters long and 9 to 11 centimeters wide. The leaf surface is smooth. The brown-tipped teeth on the leaf margin are 3 to 5 millimeters long and 0.7 to 1.4 millimeters apart.
Inflorescences and flowers
The inflorescence has five to 20 branches and reaches a length of up to 120 centimeters. The lower branches are occasionally branched again. The loose, cylindrical grapes are 6 to 15 centimeters long. The ovoid-pointed bracts are 4 to 6 millimeters long and 2 to 3 millimeters wide. The cylindrical to somewhat club-shaped, orange to red flowers are on 9 to 10 millimeter long pedicels . The flowers are 23 to 27 millimeters long. At the level of the ovary , they have a diameter of 4.5 to 8 millimeters. Your tepals are not fused together over a length of 8 to 11 millimeters. The stamens and the stylus barely protrude from the flower.
Systematics and distribution
Aloe gilbertii is common in Ethiopia at altitudes of 1200 to 1800 meters.
The first description by Sebsebe Demissew and Peter Edward Brandham was published in 1992. The following subspecies are distinguished:
- Aloe gilbertii subsp. gilbertii
- Aloe gilbertii subsp. megalacanthoides M.G. Gilbert & Sebsebe
Aloe gilbertii subsp. megalacanthoides
Aloe gilbertii subsp. megalacanthoides differs from Aloe gilbertii subsp. gilbertii due to the spread, deeply rutted and recurved leaves and the 27 to 28 millimeter long flowers. The first description of this subspecies by Michael George Gilbert and Sebsebe Demissew was published in 1997.
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. 620 .
- Leonard Eric Newton: Aloe boylei . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 140 .
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. 92.
- ↑ Sebsebe Demissew, Peter Edward Brandham: A new species of Aloe from the Ethiopian rift valley . In: Kew Bulletin . Volume 47, Number 3, 1992, pp. 509-512.
- ↑ Michael George Gilbert, Sebsebe Demissew: Further notes on the genus Aloe in Ethiopia and Eritrea . In: Kew Bulletin . Volume 52, number 1, 1997, p. 151.