Aloe rabaiensis

Aloe rabaiensis
	Aloe rabaiensis
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Aloes ( aloe )
Type :	Aloe rabaiensis
Scientific name
	Aloe rabaiensis
	Rendle

Aloe rabaiensis is a species of the genus Aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet rabaiensis refers to the occurrence of the species in the Rabai Mountains in Kenya .

description

Vegetative characteristics

Aloe rabaiensis grows trunk-forming and branches from the base. The upright or spreading shoots are often supported by the surrounding vegetation. They are up to 2 meters long and usually covered with perennial dead leaves. The lanceolate, narrowed leaves form loose rosettes , which are persistent below the shoot tips. The greyish green, often reddish tinged leaf blade is 30 to 45 centimeters long and 3 to 8 centimeters wide. There are often a few scattered, whitish spots on young shoots. The leaf surface is smooth. The brown-tipped teeth on the leaf margin are 2 to 3 millimeters long and 8 to 15 millimeters apart. The yellow leaf sap is dry red.

Inflorescences and flowers

The inflorescence usually consists of five to nine branches and reaches a length of up to 60 centimeters. The lower branches are occasionally also branched. The rather dense to dense, almost capped grapes are about 8 inches long and 8 inches wide. The lanceolate bracts have a length of 10 to 12 millimeters and are 3 millimeters wide. The orange-colored flowers are yellow at the mouth. Sometimes they are entirely yellow. The flowers are on 10 to 15 millimeters (rarely up to 20 millimeters) long pedicels . They are 20 to 25 millimeters long and narrowed briefly at their base. At the level of the ovary , the flowers have a diameter of 8 millimeters, above they are slightly narrowed. Your tepals are not fused together for about half of their length. The stamens and the style stick out about 11 millimeters from the flower.

genetics

The number of chromosomes is . ${\ displaystyle 2n = 14}$

Systematics, distribution and endangerment

Aloe rabaiensis is widespread in Somalia , Kenya and Tanzania in the coastal areas and somewhat inland on sandy soils in open bushland at altitudes of 18 to 500 meters.

The first description by Alfred Barton Rendle was published in 1895.

Aloe rabaiensis is in the endangered Red List species the IUCN as " Least Concern (LC) ", d. H. classified as not endangered in nature.

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. 633 .
Leonard Eric Newton: Aloe rabaiensis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 173 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 199.
^ Journal of the Linnean Society. Botany . Volume 30, 1895, pp. 410-411 (on- line ).
↑ Aloe rabaiensis in the endangered Red List species the IUCN 2012. Posted by: the Eastern Arc Mountains and Coastal Forests CEPF Plant Assessment Project Participants, 2009. Accessed October 18, 2012th

Web links

Commons : Aloe rabaiensis - Collection of images, videos and audio files

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 199.

[2] Journal of the Linnean Society. Botany . Volume 30, 1895, pp. 410-411 (on- line ).

[3] Aloe rabaiensis in the endangered Red List species the IUCN 2012. Posted by: the Eastern Arc Mountains and Coastal Forests CEPF Plant Assessment Project Participants, 2009. Accessed October 18, 2012th