Aloe pretoriensis
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Aloe pretoriensis |
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| Pole Evans |
Aloe pretoriensis is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet pretoriensis refers to the occurrence of the species near Pretoria , where the type specimen was collected.
description
Vegetative characteristics
Aloe pretoriensis grows easily and in a stem-forming manner . The almost upright or arched-upright trunk reaches a length of up to 100 centimeters and is 25 centimeters thick. The lanceolate, pointed leaves are densely arranged in many rows on the shoots. The green, grayish floury, indistinctly lined leaf blade is up to 60 centimeters long and 15 centimeters wide. The stinging, reddish teeth on the leaf margin are about 3 to 4 millimeters long and 10 to 15 millimeters apart.
Inflorescences and flowers
The inflorescence has five to eight branches and reaches a length of 200 to 350 centimeters. The dense, conical to cylindrical, pointed grapes are 20 to 30 centimeters long and 10 centimeters wide. The ovoid-deltoid bracts have a length of 15 to 20 millimeters. The rose-red to deep peach-colored blooms are occasionally yellowish at their mouth and are on 25 to 40 millimeter long peduncles . They are 40 to 50 millimeters long and very short at their base. Above the ovary , the flowers are slightly widened and finally narrowed towards the mouth. Your outer tepals are not fused together. The stamens and the pen stand out 1 to 2 millimeters from the flower.
genetics
The number of chromosomes is .
Systematics and distribution
Aloe pretoriensis is common in Zimbabwe , the South African provinces of Gauteng , Mpumalanga and Limpopo as well as Swaziland on grassy slopes or deciduous forests at altitudes of 1,300 to 1,500 meters.
The first description by Illtyd Buller Pole-Evans was published in 1914.
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. 646 .
- Leonard Eric Newton: Aloe pretoriensis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 171 .
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. 98.
- ↑ The Gardeners' Chronicle . 3rd Series, Volume 56, 1914, pp. 105-106 (online) .
Web links
- Aloe pretoriensis in the Red List of South African Plants