Aloe austroarabica
| Aloe austroarabica | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Aloe austroarabica | ||||||||||||
| TAMcCoy & Lavranos |
Aloe austroarabica is a species of aloes in the subfamily of the Affodilla plants (Asphodeloideae). The specific epithet austroarabica is derived from the Latin words oyster for 'south' and arabicus for 'Arabia' and refers to the occurrence of the species in the south of Saudi Arabia.
description
Vegetative characteristics
Aloe austroarabica grows without a trunk, is solitary or rarely divides into two to three rosettes . The 20 to 25 spread or ascending, lanceolate, pointed leaves form rosettes . The green leaf blade is 50 to 60 inches long, 12 inches wide and 7 to 12 millimeters thick. The white, triangular teeth on the white, cartilaginous leaf margin are 3 millimeters long and 18 to 25 millimeters apart. The leaf juice is orange in color. It dries yellowish brown.
Inflorescences and flowers
One or two inflorescences with three to six racemes that reach a length of up to 145 centimeters are formed at the same time . The rather dense, cylindrically pointed grapes are up to 55 centimeters long. The egg-shaped, pointed, fine-fluffy bracts have a length of 10 to 14 millimeters and are 5 to 8 millimeters wide. The boat-shaped, yellow, broadly green-striped flowers , rarely dark pink, are on green or pink-colored, 7 to 10 millimeter long peduncles . The flowers are 30 to 34 millimeters long. At the level of the ovary , the flowers are 6 to 8 millimeters in diameter. Your outer tepals are not fused together over a length of 20 to 25 millimeters. The stamens and the stylus protrude 5 millimeters from the flower.
Systematics and distribution
Aloe austroarabica is common in the north of Yemen and in the south of Saudi Arabia on dry rocks at altitudes of about 1100 meters.
The first description by Thomas A. McCoy and John Jacob Lavranos was published in 2003.
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. 366 .
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.
- ↑ Tom A. McCoy, John J. Lavranos: Aloe austroarabica McCoy & Lavranos - a new species - and a review of the taxonomic status of Aloe doei Lavranos . In: Cactus and Succulent Journal . Volume 75, Number 3, Cactus and Succulent Society of America, 2003, pp. 122-125.
Web links
- Photos of Aloe austroarabica