Tylecodon nigricaulis
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| Tylecodon nigricaulis | ||||||||||||
| G. Will. & van Jaarsv. |
Tylecodon nigricaulis is a species of the genus Tylecodon in the family of the thick-leaf plants (Crassulaceae).
description
Tylecodon nigricaulis grows as a branched dwarf shrub and becomes up to 8 centimeters high and wide. The roots form a branched network extending from the base with carrot-shaped to rounded-elongated tubers that are 15 to 35 millimeters long. The thin and sparsely branched shoots are covered in the upper two thirds with shiny, black to blackish brown phyllopodia and are up to 70 millimeters long and 3 to 4 millimeters wide. Three to 3 leaves standing in dense and terminal rosettes are formed. These are light green in color, narrowly elliptical and sickle-shaped and have a slight furrow on the top. The tip of the leaf is clearly finely pointed and the leaves are 12 millimeters long, 4 millimeters wide and 2 millimeters thick.
The inflorescence is formed from 25 millimeter long and 17 millimeter wide monochasias , which end in three to five 6 millimeter long individual flowers. The upright inflorescence stalk is covered with glandular hairs, is up to 10 millimeters long and 1 millimeter wide. It sits at the end of last year's shoots. The greenish and wiry flower stalk is up to 10 millimeters long and is covered with crystal hair. The cylindrical corolla tube is 5 millimeters long and 2.5 millimeters wide. It is light canary yellow to yellowish green in color. The extended corolla lobes are elongated and finely pointed. They are 3.2 millimeters long and 1.5 millimeters wide and are whitish to light lilac in color. The rectangular and deeply edged nectar flakes are colored bright yellow.
Systematics and distribution
Tylecodon nigricaulis is widespread in South Africa in the Northern Cape Province near Garies in the Succulent Karoo on granite rocks. It was first described in 2000 by Graham Williamson and Ernst Jacobus van Jaarsveld .
The species is compared with Tylecodon pygmaeus in the protologue .
literature
- E. van Jaarsveld: Tylecodon . In: Urs Eggli (Ed.): Sukkulenten-Lexikon Volume 4 Crassulaceae (Dickblattgewächse) Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , p. 375.
Individual evidence
- ↑ Aloe. Journal of the South African Aloe and Succulent Society. Pretoria, Volume 36, Volume 2/3, 2000, pp. 43-44
Web links
- Photo of a plant in culture