Aloe irafensis
| Aloe irafensis | ||||||||||||
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| Scientific name | ||||||||||||
| Aloe irafensis | ||||||||||||
| Lavranos , TAMcCoy & Al-Gifri |
Aloe irafensis is a species of aloes in the subfamily of the Affodill family (Asphodeloideae). The specific epithet irafensis refers to the occurrence of the species on the Jabal Iraf in Yemen.
description
Vegetative characteristics
Aloe irafensis grows trunk-forming and sparsely branched from the base. The prostrate trunks reach a length of up to 100 centimeters. The ten to 16 horizontally spread, downwardly curved, narrow belt-shaped leaves are arranged in two rows. Their blackish green or dark jade green leaf blades are 20 centimeters long and 3 to 3.5 centimeters wide. Occasionally it is covered with numerous white spots. The tip of the leaf is pointed, the surface of the leaf rough. The leaf margin is not reinforced. Small white teeth are very rarely present. The leaf sap is greenish yellow. It dries brownish yellow.
Inflorescences and flowers
The inflorescence consists of three to nine widely spread branches and reaches a length of up to 45 centimeters. The crooked or almost upright, loose grapes consist of one-sided flowers. The egg-shaped, pointed bracts are 3 to 7 millimeters long and 1.5 to 3 millimeters wide. The cloudy red, waxy, shimmering flowers are yellowish green at their mouth and stand on 7 millimeter long flower stalks . The flowers are 20 millimeters long. At the level of the ovary , the flowers have a diameter of 4 millimeters. Your outer tepals are not fused together over a length of 5 millimeters. The stamens and the pen stand out 3 to 3.5 millimeters from the flower.
Systematics and distribution
Aloe irafensis is distributed in Yemen in forests of Juniperus excelsa at altitudes of around 1200 to 1250 meters.
The first description by John Jacob Lavranos , Thomas A. McCoy and Abdul Nasser Al-Gifri was published in 2004 but was not valid. The description was validated in 2008.
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. 485 .
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. 94.
- ↑ John Lavranos, Tom McCoy, Abdul Nasser Al-Gifri: Aloe irafensis: a beautiful new distichous species from the Yemen . In: Cactus and Succulent Journal . Volume 76, Number 3, Cactus and Succulent Society of America, 2004, pp. 134-138.
- ^ Cactus and Succulent Journal . Volume 80, Number 1, Cactus and Succulent Society of America, 2008, p. 41.
Web links
- Photos of Aloe irafensis