Aloe juvenna

Aloe juvenna
	Aloe juvenna
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Aloes ( aloe )
Type :	Aloe juvenna
Scientific name
	Aloe juvenna
	Brandham & S. Carter

Aloe juvenna is a species of aloes in the subfamily of the Affodill family (Asphodeloideae). The specific epithet juvenna is a pseudo-Latinized form of the word ' juvenile ' and can be traced back to a misinterpreted label of a cultivated young plant.

description

Vegetative characteristics

Aloe juvenna grows trunk-forming, is richly branched and sprouts from the base. The densely leafy shoots are upright and then up to 25 centimeters long and 7 millimeters in diameter or prostrate and up to 45 centimeters long and 1.2 millimeters in diameter. The bright green deltoid, perennial leaves below the shoot tip are up to 4 centimeters long and up to 2 centimeters wide. There are up to 35 leaves for every 10 centimeters of shoot length. There are many elongated, light green spots on the leaf surface, many of which have pulled out into small prickles. On the leaf margins sit 4 to 6 millimeters apart, 2 to 4 millimeters long cartilaginous teeth.

Inflorescences and flowers

The simple or simply branched inflorescence reaches a height of 25 centimeters. The conical and fairly dense grape is up to 8 inches long and up to 6 inches wide. Your egg-shaped bracts are about 5 millimeters long and 4 millimeters wide. The coral-pink flowers , greenish yellow at their tips, are borne by 13 to 18 millimeter long flower stalks . They are 27 millimeters long, narrowed at their base and have a diameter of 8 millimeters at the level of the ovary . Above this, the flowers are very slightly narrowed and slightly widened towards the mouth. The outer tepals are not fused together over a length of 9 millimeters. The stamens and the stylus barely protrude from the perianth.

genetics

The chromosome number for Aloe juvenna is . ${\ displaystyle 2n = 28}$

Systematics and distribution

Aloe juvenna is common in Kenya in dense grass on rocky ridges at altitudes of 2300 meters. It is only known from one site.

The first description by Peter Edward Brandham and Susan Carter was published in 1979.

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. 529 .
Leonard Eric Newton: Aloe juvenna . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 149 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 123.
^ PE Brandham: The chromosomes of the Liliaceae. II. Polyploidy and Karyotype Variation in the Aloïneae . In: Kew Bulletin . Volume 25, 1971, pp. 381-399 ( JSTOR 4103181 ).
^ Peter Edward Brandham, Susan Carter: The identity of Aloe juvenna . In: Cactus and Succulent Journal of Great Britain . Volume 41, Number 2, London 1979, pp. 27-29.

Web links

Commons : Aloe juvenna - 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. 123.

[2] PE Brandham: The chromosomes of the Liliaceae. II. Polyploidy and Karyotype Variation in the Aloïneae . In: Kew Bulletin . Volume 25, 1971, pp. 381-399 ( JSTOR 4103181 ).

[3] Peter Edward Brandham, Susan Carter: The identity of Aloe juvenna . In: Cactus and Succulent Journal of Great Britain . Volume 41, Number 2, London 1979, pp. 27-29.