Aloe tenuior

Aloe tenuior
	Aloe tenuior var. Tenuior
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Aloes ( aloe )
Type :	Aloe tenuior
Scientific name
	Aloe tenuior
	Haw.

Distribution area

Red flowering species

Aloe tenuior is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet tenuior comes from Latin , means 'slender' and refers to the slender branches of the species.

description

Vegetative characteristics

Aloe tenuior grows trunk-forming and branched. Upright trunks are up to 60 inches high and 1.5 inches thick. If the trunks are spread out to prostrate, clambering or supported by the surrounding vegetation, they can reach a length of up to 300 centimeters. The linear-lanceolate leaves form a loose rosette , which sometimes persists up to 20 centimeters below the top of the trunk. The glaucous green leaf blade is 10 to 18 inches long and 1 to 2.2 inches wide. The very narrow, white edges are cartilaginous. The white teeth on the leaf margin are up to 0.5 millimeters long and 1 to 2 millimeters apart. The indistinct green lined leaf sheaths are 5 to 25 millimeters long.

Inflorescences and flowers

The inflorescence is simple or has one or two branches. It reaches a length of 35 to 40 centimeters (rarely up to 50 centimeters). The rather dense to dense, cylindrical, slightly pointed grapes are 10 to 20 centimeters long and 4 centimeters wide. The linear-deltoid, pointed bracts are about 5 millimeters long. The yellow or red and yellow tipped flowers are on 3 to 5 millimeter long peduncles . The flowers are 11 to 15 millimeters long and narrowed briefly at their base. Above the ovary they are very slightly narrowed and finally widened to the mouth. Your tepals are not fused together over a length of about 3 to 6 millimeters. The stamens and the pen stand out 4 to 6 millimeters from the flower.

genetics

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

Systematics and distribution

Aloe tenuior is common in South Africa. Aloe tenuior var. Tenuior grows in the South African province of Eastern Cape in the thorn bush as well as in open landscapes and occasionally on steep slopes. Aloe tenuior var. Viridifolia is only known from the area where the type was found in the Addo Elephant National Park , where the variety grows in dry quartzitic fynbos at heights of 300 to 500 meters .

The first description by Adrian Hardy Haworth was published in 1825. A nomenclature synonym is Aloiampelos tenuior (Haw.) Klopper & Gideon F.Sm. (2013).

A distinction is made between the following varieties :

Aloe tenuior var. Tenuior
Aloe tenuior var. Viridifolia van Jaarsv.

Aloe tenuior var. Tenuior
The following taxa were included as a synonym in the species: Aloe tenuior var. Glaucescens Zahlbr. (1900), Aloe tenuior var. Decidua Reynolds (1936), Aloe tenuior var. Rubriflora Reynolds (1936) and Aloe tenuior var. Densiflora Reynolds (1950).

Aloe tenuior var. Viridifolia
The differences to Aloe tenuior var. Tenuior are: The bright, glossy green leaves of the variety are 5 to 9 centimeters long and 0.6 to 1 centimeters wide. The leaf margin is entire. The first description by Ernst Jacobus van Jaarsveld was published in 2007.

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. 546 .
Leonard Eric Newton: Aloe tenuior . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 184 .

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. 101.
^ Adrian Hardy Haworth: Decas quinta novarum Plantarum Succulentarum . In: Philosophical Magazine . Volume 66, 1825, p. 281 ( online ).
↑ Olwen Megan Grace, Ronell R. Klopper, Gideon F. Smith, Neil R. Crouch, Estrela Figueiredo, Nina Ronsted, Abraham E. van Wyk: A revised generic classification for Aloe (Xanthorrhoeaceae subfam. Asphodeloideae) . In: Phytotaxa . Volume 76, number 1, 2013, pp. 7-14 ( doi: 10.11646 / phytotaxa.76.1.1 ).
^ Ernst Jacobus van Jaarsveld: Aloe tenuior var. Viridifolia, a new variety (series Fruticosae) from Eastern Cape, Southern Africa . In: Aloe . Volume 44, Number 3, 2007, pp. 60-62.

Web links

Commons : Aloe tenuior - collection of images, videos and audio files

Aloe tenuior var. Tenuior in the Red List of South African Plants

[1] 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. 101.

[2] Adrian Hardy Haworth: Decas quinta novarum Plantarum Succulentarum . In: Philosophical Magazine . Volume 66, 1825, p. 281 ( online ).

[3] Olwen Megan Grace, Ronell R. Klopper, Gideon F. Smith, Neil R. Crouch, Estrela Figueiredo, Nina Ronsted, Abraham E. van Wyk: A revised generic classification for Aloe (Xanthorrhoeaceae subfam. Asphodeloideae) . In: Phytotaxa . Volume 76, number 1, 2013, pp. 7-14 ( doi: 10.11646 / phytotaxa.76.1.1 ).

[4] Ernst Jacobus van Jaarsveld: Aloe tenuior var. Viridifolia, a new variety (series Fruticosae) from Eastern Cape, Southern Africa . In: Aloe . Volume 44, Number 3, 2007, pp. 60-62.