Aloe reitzii
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Aloe reitzii is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet reitzii honors Mr. FW Reitz, who discovered the species.
description
Vegetative characteristics
Aloe reitzii grows without a stem or stem-forming, is simply or rarely branched. The prostrate trunk reaches a length of up to 60 centimeters. The lanceolate, sword-shaped leaves form dense rosettes . The green leaf blade is up to 65 inches long and 12 inches wide. There is a piercing thorn at its tip . The leaf surface is smooth. On the underside of the leaf there are occasionally four to eight brownish, about 2 millimeters long spines near the tip along the center line. The piercing, brownish to reddish-brown teeth on the leaf margin are 3 millimeters long and 7 to 15 millimeters apart.
Inflorescences and flowers
The inflorescence consists of two to six branches and reaches a length of 100 to 130 centimeters. The very dense, cylindrical, slightly pointed grapes are 35 to 45 centimeters long and 5 to 6 centimeters wide. The lanceolate-pointed, brownish bracts have a length of 14 millimeters and are 7 millimeters wide. The flowers are bright red on top and lemon yellow on the underside and are on 3 millimeter long peduncles . The flowers are up to 50 millimeters long and rounded at their base. At the level of the ovary , the flowers have a diameter of about 7 millimeters. Above that, they are expanded to around 9 millimeters in the middle and finally narrowed slightly towards the mouth. Your outer tepals are not fused together over a length of 20 millimeters. The stamens and the pen stand out 8 to 10 millimeters from the flower.
genetics
The number of chromosomes is .
Systematics and distribution
Aloe reitzii is common in South Africa.
The first description by Gilbert Westacott Reynolds was published in 1937. A distinction is made between the following varieties :
- Aloe reitzii var. Reitzii
- Aloe reitzii var. Vernalis D.S. Hardy
Aloe reitzii var. Reitzii
The variety is common in the South African province of Mpumalanga on rocky slopes at altitudes of 1200 to 1600 meters.
Aloe reitzii var. Vernalis
The differences to Aloe reitzii var. Reitzii are: The leaves of the variety are 40 to 65 centimeters long and 5 to 9 centimeters wide. The inflorescence reaches a length of up to 75 centimeters. The bracts are deltoid tapering and are 6 millimeters long and 5 millimeters wide.
The first description of the variety by David Spencer Hardy was published in 1981. Aloe reitzii var. Vernalis is distributed in South Africa in the province of KwaZulu-Natal between Vryheid and Natal Spa on steep, water-permeable granite slopes.
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. 376-377 .
- Leonard Eric Newton: Aloe reitzii . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 174 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 201.
- ^ Journal of South African Botany . Volume 3, Kirstenbosch 1937, p. 135.
- ↑ Bothalia . Volume 13, Numbers 3-4, 1981, pp. 451-452. ( PDF )
Web links
- Aloe reitzii var. Reitzii in the Red List of South African Plants
- Aloe reitzii var. Vernalis in the Red List of South African Plants