Aloe buettneri
| Aloe buettneri | ||||||||||||
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| Aloe buettneri | ||||||||||||
| A. Berger |
Aloe buettneri is a species of aloes in the subfamily of the Affodilla plants (Asphodeloideae). The specific epithet buettneri honors the German botanist Oskar Alexander Richard Büttner , who headed a research station in Togo from 1890 to 1891.
description
Vegetative characteristics
Aloe buettneri grows stemless, is simple or rarely branched from the base and then forms small groups. Their base is enlarged towards the end of the growing season and forms an onion. The roughly ten triangular leaves form rosettes and usually die off during the dry season. The green, indistinctly lined leaf blade is 35 to 55 centimeters long and 5 to 15 centimeters wide. Occasionally there are a few scattered, whitish spots on it. The leaf surface is smooth. The very narrow leaf margin is white to light pink and cartilaginous. The fixed teeth on the edge of the leaf are 3 to 4 millimeters long and 10 to 15 millimeters apart.
Inflorescences and flowers
The inflorescence consists of three to five branches and reaches a length of 70 to 90 centimeters. The rather dense, cylindrical-conical to almost head-shaped grapes are 15 centimeters long and 7 centimeters wide. The deltoid-pointed or lanceolate pointed bracts have a length of 10 to 15 millimeters and are 6 to 8 millimeters wide. The greenish yellow to cloudy red flowers are on 20 to 25 millimeter long peduncles . The flowers are 38 millimeters long and rounded at their base. At the level of the ovary , the flowers have a diameter of 9 to 11 millimeters. Above it, they are narrowed to 6 to 8 millimeters, then expanded to 9 to 11 millimeters and finally narrowed again towards the mouth. Your outer tepals are not fused together over a length of 12 to 13 millimeters. The stamens and the style protrude up to 1 millimeter from the flower.
genetics
The number of chromosomes is .
Systematics and distribution
Aloe buettneri is widespread in Benin , Burkina Faso , Ghana , Mali , Nigeria and Togo on grasslands and in savannah woodlands up to altitudes of 1,800 meters.
The first description by Alwin Berger was published in 1905.
Synonyms are Aloe barteri Baker (1880), Aloe paedogona A. Berger (1906), Aloe barteri var. Dahomensis A. Chev. (1952, nom. Inval. ICBN -Article 36.1), Aloe barteri var. Sudanica A. Chev. (1952, nom. Inval. ICBN -Article 36.1) and Aloe barteri var. Paludicola A. Chev. (1952, nom. Invalid ICBN -Article 36.1).
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. 151 .
- Leonard Eric Newton: Aloe buettneri . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 118-119 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 34.
- ↑ Alwin Berger: About the systematic structure of the genus Aloe . In: Botanical yearbooks for systematics, plant history and plant geography . Volume 36, Number 1, 1905, p. 60 ( online ).
- ^ Alwin Berger: A new Aloe from Angola . In: Journal of Botany, British and Foreign . Volume 44, 1906, pp. 57-58 ( online ).
Web links
- Aloe buettneri . In: U. Brunken, M. Schmidt, S. Dressler, T. Janssen, A. Thiombiano, G. Zizka: West African plants - A Photo Guide. Senckenberg Research Institute, Frankfurt / Main 2008.