Aloe rivae

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

Aloe rivae is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet rivae honors the Italian botanist Domenico Riva (around 1856–1895).

description

Vegetative characteristics

Aloe rivae grows without a stem or with a short stem, is simple or forms small groups. The trunk is upright, ascending or prostrate and reaches a length of up to 60 centimeters. The approximately 20 ovate-lanceolate leaves form dense rosettes . The cloudy olive green to brownish green leaf blade is 50 to 55 centimeters long and 17 to 20 centimeters wide. The firm, reddish-brown teeth on the reddish-tinged edge of the leaf are about 4 millimeters long and 10 to 15 millimeters apart. The leaf sap is dry purple in color.

Inflorescences and flowers

The inflorescence consists of about twelve branches and reaches a length of 60 to 70 centimeters. The lower branches are branched again. The loose, cylindrical grapes are 10 centimeters long and 7 centimeters wide. The flowers are slightly one-sided. The egg-shaped, pointed bracts are 2 to 4 millimeters long and 2 to 3 millimeters wide. The scarlet, frosted flowers are on 12 millimeter long flower stalks . The flowers are 33 millimeters long and trimmed at their base. At the level of the ovary , the flowers have a diameter of 10 millimeters. They are slightly narrowed to the mouth. Your outer tepals are not fused together over a length of 13 millimeters. The stamens and the pen stand out 4 to 5 millimeters from the flower.

Systematics and distribution

Aloe rivae is distributed in the south of Ethiopia and in the north of Kenya in open, wooded grasslands on rocky slopes at altitudes of 1000 to 1500 meters.

The first description by John Gilbert Baker was published in 1898.

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. 354 .
Leonard Eric Newton: Aloe rivae . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 175 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 204.
^ In: Daniel Oliver: Flora of Tropical Africa . Volume 7, Part 3, 1898, p. 465 ( online ).

Web links

Commons : Aloe rivae - 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. 204.

[2] In: Daniel Oliver: Flora of Tropical Africa . Volume 7, Part 3, 1898, p. 465 ( online ).