Aloe striatula

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

Aloe striatula is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet striatula comes from Latin , means 'striped' and refers to thin parallel lines on the leaf sheaths.

description

Vegetative characteristics

Aloe striatula grows trunk-forming and branching. The trunk reaches a length of up to 175 centimeters and a diameter of 2.5 centimeters. The linear-lanceolate, tapering leaves are scattered along the top 40 to 60 centimeters. The semi-glossy green leaf blade is up to 25 inches long and 2.5 inches wide. The white, cartilaginous leaf margin is very narrow. The firm, white teeth on the leaf margin are about 1 millimeter long and 3 to 8 millimeters apart. The striking green striped leaf sheaths are 15 to 20 millimeters long.

Inflorescences and flowers

The simple inflorescence reaches a length of up to 40 centimeters. The dense, cylindrical-conical grapes are 10 to 15 centimeters long. The deltoid awl bracts are about half as long as the flower stalks. The reddish orange to orange flowers are on 3 to 5 millimeter long peduncles . The flowers are 40 to 45 millimeters long and truncated at their base. Above the ovary , the flowers are very slightly narrowed. Your outer tepals are almost not fused together. The stamens and the style protrude 5 to 7 mm from the flower.

genetics

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

Systematics and distribution

Aloe striatula is common in Lesotho and South Africa.

The first description by Adrian Hardy Haworth was published in 1825.

A nomenclature synonym is Aloiampelos striatula (Haw.) Klopper & Gideon F.Sm. (2013).

A distinction is made between the following varieties :

Aloe striatula var. Striatula
Aloe striatula var. Caesia Reynolds

Aloe striatula var. Striatula
The variety iswidespreadin the south of Lesotho and in the South African province of Eastern Cape between rocks on mountain peaks. The following taxa were included as synonymous in the variety: Aloe macowanii Baker (1880), Aloe aurantiaca Baker (1892) and Aloe cascadensis Kuntze (1898).

Aloe striatula var. Caesia
The differences to Aloe striatula var. Striatula are: The trunk is up to 2 meters long and has a diameter of 1.2 to 2 centimeters. The milky green leaves are 10 to 15 centimeters long and 1.5 to 2.5 centimeters wide. The leaf sheaths are indistinctly striped green and have a length of 5 to 15 millimeters. The yellow, greenish-pointed flowers are 30 to 33 millimeters long, slightly narrowed above the ovary and finally widened towards the mouth.

The first description of the variety by Gilbert Westacott Reynolds was published in 1936. Aloe striatula var. Caesia is widespread in South Africa in the Eastern Cape Province near Hofmeyr on rocky slopes.

A nomenclatory synonym is Aloiampelos striatula var. Caesia (Reynolds) Klopper & Gideon F.Sm. (2013). The following taxa were included as a synonym in the variety: Aloe striatula f. typica Resende (no year, nom. inval. ICBN -Article 24.3), Aloe striatula f. conimbricensis Resende (1943) and Aloe striatula f. haworthii Resende (1943).

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. 552 .
Leonard Eric Newton: Aloe striatula . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 182-183 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 229.
^ Adrian Hardy Haworth: Decas quinta novarum Plantarum Succulentarum . In: Philosophical Magazine . Volume 66, 1825, p. 281 ( online ).
↑ ^a ^b 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 ).
^ Flowering Plants of South Africa . Volume 16, 1936, plate 633.

Web links

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

Aloe striatula var. Striatula in the Red List of South African Plants
Aloe striatula var. Caesia in the Red List of South African Plants

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 229.

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

[Phytotaxa-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] Flowering Plants of South Africa . Volume 16, 1936, plate 633.