Aloe sakarahensis
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| Aloe sakarahensis | ||||||||||||
| Lavranos & M. Teissier |
Aloe sakarahensis is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet sakarahensis refers to the occurrence of the species in the Sakahara forest on Madagascar.
description
Vegetative characteristics
Aloe sakarahensis grows stemless and individually. The ten to 15 spread, linear leaves form a leaf rosette . The chocolate-brown to cloudy green, indistinctly lined leaf blade is 15 centimeters long and 2 to 2.5 centimeters wide. The pointed tip of the leaf is often curved upwards. The triangular teeth on the edge of the leaf are 5 to 6 millimeters long and 8 to 12 millimeters apart.
Inflorescences and flowers
The simple inflorescence reaches a length of 11 to 15 centimeters. The very loose grapes are 2 to 4 centimeters long. The bracts have a length of 6 to 8 millimeters. The bright red, bright green tipped flowers become paler at the mouth and stand on 3 to 5 millimeter long flower stalks . The flowers are 15 to 20 millimeters long and 3 millimeters in diameter. Your tepals are not fused together over a length of 2 to 3 millimeters. The stamens and the stylus do not protrude from the flower.
fruit
Systematics and distribution
Aloe sakarahensis is common in Madagascar . Aloe sakarahensis subsp. sakarahensis only grows in the Zombitsy forest near Sakahara at an altitude of 550 meters. Aloe sakarahensis subsp. pallida is widespread on limestone in the northwest of Sakahara near Analavelona . This subspecies is only known from the locality of the type.
The first description by John Jacob Lavranos and Marc Teissier was published in 2004. The following subspecies are distinguished:
- Aloe sakarahensis subsp. sakarahensis
- Aloe sakarahensis subsp. pallida (Rauh & Mangelsdorff) Lavranos & M. Teissier
Aloe sakarahensis subsp. pallida
Aloe sakarahensis subsp. pallida differs from Aloe sakarahensis subsp. sakarahensis for its bright green leaves, which are brownish when young , and the pale red or yellow flowers. The first description of this subspecies as Aloe prostrata subsp. pallida by Werner Rauh and Ralph Daniel Mangelsdorff was published in 2000. John Jacob Lavranos and Marc Teissier presented the subspecies to the species Aloe sakarahensis in 2004.
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. 221 .
- Leonard Eric Newton: Aloe prostrata subsp. pallida . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 172 .
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. 99.
- ^ A b Marc Teissier, John J. Lavranos: Sur l'identite de Aloe prostrata (H.Perrier) LENewton & GDRowley (Lomatophyllum prostratum H.Perrier) et sujets apparentes . In: Succulentes 2004 . Number 3, pp. 19-20.
- ↑ Werner Rauh, Ralph Daniel Mangelsdorff: Aloe prostrata subsp. pallida subsp. nov. (Aloaceae) . In: Cacti and other succulents . Volume 51, Number 6, 2000, pp. 157-159.
Web links
- Photos of Aloe sakarahensis