Aloe pillansii
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| L.Guthrie |
Aloe pillansii is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet pillansii honors the South African botanist Neville Stuart Pillans (1884–1964).
description
Vegetative characteristics
Aloe pillansii grows trunk-forming and branches dichotomously from about the middle . The trunk reaches heights of up to 10 meters or more. At the base it has a diameter of 1 to 2 meters and tapers towards the top to about 20 centimeters. The smooth, lanceolate, gray-green to brownish-green leaves are slightly sickle-shaped and sit together in a rosette. The leaf blade is 50 to 60 inches long and 10 to 12 inches wide. The white margins of the leaves are covered with 1 to 2 millimeter large white teeth that are 5 to 8 millimeters apart.
Inflorescences and flowers
The up to 50 times branched racemose inflorescence reaches a height of about 50 centimeters. The loose, cylindrical flower clusters are up to 15 centimeters long and consist of about 30 individual flowers. The flower stalks have a length of 10 millimeters. The yellow flowers are up to 35 millimeters long and narrowed at the base. The tepals are not grown together over a length of 25 millimeters. The stamens and the stylus protrude 10 to 15 mm from the flower sleeve.
Systematics, distribution and endangerment
Aloe pillansii is common in Namibia and the South African province of North Cape on hot, dry and rocky slopes. The first description by Louise Guthrie (1879-1966) was published in 1928. A synonym is Aloidendron pillansii (L.Guthrie) Klopper & Gideon F.Sm. (2013).
Aloe pillansii is listed in Appendix I of the Washington Convention on Endangered Species . In the Red List of Threatened Species of IUCN is the species as " Critically Endangered (CR) ", d. H. critically endangered, classified.
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. 693 .
- Leonard Eric Newton: Aloe pillansii . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 169-170 .
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. 87.
- ^ Journal of Botany, British and Foreign . Volume 66, London 1928, p. 15.
- ↑ Olwen Megan Grace, Ronell R. Klopper, Gideon F. Smith, Neil R. Crouch, Estrela Figueiredo, Nina Ronsted, Abraham E. van Wyk: A revised generic classification for Aloe (Xanthorrhoeaceae subfam. Asphodeloideae) . In: Phytotaxa . Volume 76, number 1, 2013, pp. 7-14 ( doi: 10.11646 / phytotaxa.76.1.1 ).
- ↑ Appendices I, II and III valid from April 3, 2012 . (accessed on August 10, 2012).
- ↑ Aloe pillansii in the endangered Red List species the IUCN 2010. Posted by: Hilton-Taylor, C., 1998. Retrieved on April 10 of 2010.
Web links
- Aloe pillansii in the Red List of South African Plants
- Location photos