Aloe divaricata

Aloe divaricata
	Aloe divaricata
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Aloes ( aloe )
Type :	Aloe divaricata
Scientific name
	Aloe divaricata
	A. Berger

Aloe divaricata is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet divaricata comes from Latin , means 'spread out' and refers to the ramifications of the inflorescence.

description

Vegetative characteristics

Aloe divaricata grows trunk-forming, individually or sparsely branched from the base or below. The trunks are up to 3 meters or more long and covered with the remains of dead leaves. On the top 50 to 100 centimeters, 30 or more sword-shaped and bluntly tapering leaves form rosettes . Their cloudy green, reddish tinged leaf blades are 60 to 65 centimeters long and 7 centimeters wide. The piercing, reddish-brown teeth on the leaf margin are 5 to 6 millimeters long and 15 to 20 millimeters apart. The leaf sap is dry yellow.

Inflorescences and flowers

The inflorescence consists of many branches and reaches a length of about 100 centimeters. The lowest branches have eight to ten secondary branches. There are a total of 60 to 80 flower clusters. The loose, cylindrical and pointed grapes are 15 to 20 centimeters long. They consist of about 20 flowers . The deltoid bracts have a length of 4 millimeters and are 2 millimeters wide. The scarlet flowers are on 6 millimeter long peduncles . The flowers are 28 millimeters long and slightly rounded at their base. At the level of the ovary , they have a diameter of 7 millimeters. Above that they are narrowed to 6 millimeters and widened towards the mouth. Your outer tepals are not fused together. The stamens and the pen stand out 3 to 4 millimeters from the flower.

genetics

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

Systematics and distribution

Aloe divaricata is common in Madagascar . Aloe divaricata var. Divaricata grows at altitudes of up to 800 meters in dry bushes and in coastal thickets.

The first description by Alwin Berger was published in 1905. A distinction is made between the following varieties :

Aloe divaricata var. Divaricata
Aloe divaricata var. Rosea (Decary) Reynolds

Aloe divaricata var. Divaricata
Synonyms are Aloe sahundra Bojer (1837, nom. Inval. ICBN -Article 32.1c), Aloe vahontsohy Decorse ex Poiss. (1912), Aloe Vaotsohy Decorse & Poiss. (1912) and Aloe vahontsohy H.Perrier (1938, nom. Inval.).

Aloe divaricata var. Rosea
In contrast to Aloe divaricata var. Divaricata , the variety has light pink flowers.

The first description as Aloe vaotsohy var. Rosea by Raymond Decary took place in 1921. Gilbert Westacott Reynolds placed the variety in 1958 to the species Aloe divaricata .

In 2012 Jean-Philippe Castillon described the two subspecies Aloe divaricata subsp. tulearensis (TAMcCoy & Lavranos) J.-P.Castillon and Aloe divaricata subsp. Vaotsohy (Decorse & Poiss.) J.P. Castillon .

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. 667 .
Leonard Eric Newton: Aloe divaricata . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 132-133 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 68.
↑ Alwin Berger: About the systematic structure of the genus Aloe . In: Botanical yearbooks for systematics, plant history and plant geography . Volume 36, Number 1, 1905, p. 64 ( online ).
^ Raymond Decary: Monographie du district de Tsihombe . In: Bulletin Economique de Madagascar . Volume 18, Number 1, 1921, p. 25.
↑ Le Naturaliste Malgache . Les Aloes de Madagascar, Volume 10, 1958, p. 133.
^ Jean-Philippe Castillon: Révision du groupe de l'Aloe divaricate Berger; correction d'une synonymy, combinaisons nouvelles et description d'un nouvel hybride . In: Adansonia . Volume 34, Number 1, 2012, pp. 13-21 ( doi: 10.5252 / a2012n1a2 ).

Web links

Commons : Aloe divaricata - 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. 68.

[2] Alwin Berger: About the systematic structure of the genus Aloe . In: Botanical yearbooks for systematics, plant history and plant geography . Volume 36, Number 1, 1905, p. 64 ( online ).

[3] Raymond Decary: Monographie du district de Tsihombe . In: Bulletin Economique de Madagascar . Volume 18, Number 1, 1921, p. 25.

[4] Le Naturaliste Malgache . Les Aloes de Madagascar, Volume 10, 1958, p. 133.

[5] Jean-Philippe Castillon: Révision du groupe de l'Aloe divaricate Berger; correction d'une synonymy, combinaisons nouvelles et description d'un nouvel hybride . In: Adansonia . Volume 34, Number 1, 2012, pp. 13-21 ( doi: 10.5252 / a2012n1a2 ).