Aloe petricola
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| Pole Evans |
Aloe petricola is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet petricola is derived from the Latin words petra for 'rock' and -cola for 'inhabiting' and refers to the habitat of the species.
description
Vegetative characteristics
Aloe petricola grows without a trunk, individually or in small groups. The 20 to 30 lanceolate, narrowed leaves form dense rosettes . The glauke leaf blade is about 60 centimeters long and 10 centimeters wide. Occasionally there are a few scattered spines on the leaf surface. On the underside, they stand along a blunt keel near the top. The dark brown teeth on the leaf margin are 5 millimeters long and 15 millimeters apart.
Inflorescences and flowers
The inflorescence consists of three to six branches and reaches a length of up to 100 centimeters. The very dense, cylindrical, slightly pointed grapes are 40 to 50 centimeters long. The light brown, egg-shaped-pointed bracts have a length of about 12 millimeters and are 5 millimeters wide. Near the base, they have been hit back hard. The greenish white to light orange flowers are on 2 millimeter long peduncles . The slightly bulbous flowers are 28 to 30 millimeters long and have an inverted conical base. Above the ovary , the flowers are enlarged. Your tepals are not fused together over a length of 19 to 20 millimeters. The purple-brown stamens protrude 10 to 12 mm, the stylus 12 millimeters from the flower out.
genetics
The number of chromosomes is .
Systematics and distribution
Aloe petricola is widespread in the South African province of Mpumalanga on exposed sandstone slopes and granite rock deposits at altitudes of 500 to 1000 meters.
The first description by Illtyd Buller Pole-Evans was published in 1917.
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. 363 .
- Leonard Eric Newton: Aloe petricola . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 169 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 183.
- ^ Transactions of the Royal Society of South Africa . Volume 5, 1917, p. 707.
Web links
- Aloe petricola in the Red List of South African Plants