Lithops gracilidelineata subsp. brandbergensis
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Lithops gracilidelineata subsp. brandbergensis |
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| Lithops gracilidelineata subsp. brandbergensis | ||||||||||||
| ( de Boer ) DTCole |
Lithops gracilidelineata subsp. brandbergensis is a subspecies of the plant Lithops gracilidelineata in the genus Lithops from the family of aizoaceae (Aizoaceae). The epithet of the subspecies refers to the place of discovery, the Brandenberg , 150 kilometers northwest of Usakos in Namibia.
description
Lithops gracilidelineata subsp. brandbergensis rarely grows with more than one flattened, usually slightly outwardly curved head , which is usually 36 (rarely 48) millimeters long and 28 (rarely 36) millimeters wide. The mostly almost identical head halves are separated by a shallow, 4 to 8 millimeter deep gap and have a round to elliptical end surface that is smooth, slightly wrinkled and largely opaque. The edge surrounding the end faces is not clearly delimited and is irregularly notched. Windows are usually missing. The narrow canals are mostly located in a regular network of flat valleys and are matt greenish gray. In the network of channels and valleys, islands only appear as fairly regular opaque areas. There are thick blood-red or brownish or purple rubrications in the canals , which form a fairly regular network of lines.
The yellow, usually six-fold flowers reach a diameter of 25 to 30 (rarely 35) millimeters. The broadly elliptical and in profile boat-shaped to rounded fruit capsules are arched outwards to pointed at the top.
Systematics and distribution
Lithops gracilidelineata subsp. brandbergensis is distributed in Namibia in the municipality of Omaruru on the Brandenberg at altitudes of 2300 to 2400 meters and grows there in weathered brown granite gravel. It is the highest-altitude habitat of a Lithops species. The first description as Lithops pseudotruncatella var. Brandbergensis was published in 1963 by Hendrik Wijbrand de Boer and was based on specimens collected by Jalmar Rudner in June 1956. Desmond Thorne Cole introduced the variety in 1988 as a subspecies in the species Lithops gracilidelineata .
Lithops gracilidelineata subsp. brandbergensis differs from Lithops gracilidelineata by the clearly different color of the leaves and the thick rubrications.
proof
literature
- Desmond T. Cole, Naureen A. Cole: Lithops: Flowering Stones . Cactus & Co. 2005, pp. 149-152, ISBN 8890051175
- DT Cole, NA Cole: Lithops . In: Heidrun EK Hartmann : Illustrated Handbook of Succulent Plants: Aizoaceae FZ , Springer Verlag, Berlin / Heidelberg / New York 2001, p. 121 f., ISBN 3540417230
- Steven A. Hammer: Lithops: Treasures of the Veld (Observations on the Genus Lithops NEBr) . British Cactus and Succulent Society 1999, pp. 65 f., ISBN 0902099647
Individual evidence
- ^ Lithops Flowering Stones . P. 217, 1st edition 1988
