Tylecodon sulphureus

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Tylecodon sulphureus
inflorescence

inflorescence

Systematics
Nuclear eudicotyledons
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Kalanchoideae
Genre : Tylecodon
Type : Tylecodon sulphureus
Scientific name
Tylecodon sulphureus
( Toelken ) Toelken

Tylecodon sulphureus is a species of the genus Tylecodon in the family of the thick-leaf plants (Crassulaceae).

description

Tylecodon sulphureus grows as a very small plant with only a few branches from a bulbous base, sometimes also geophytically . The upright shoots are covered with pale phyllopodia. The small, lanceolate, elliptical-linear leaves are glabrous and have very small warts. They are furrowed on the upper side, are 5 to 25 millimeters long and 2 to 8 millimeters wide and have a blunt tip.

The 3.5 to 4 centimeter high inflorescence consists of upright and flat-topped thyrs with 1 to 3 monochasias . The tubular corolla covered with glandular hairs is 8 to 12 millimeters long and colored white, light pink or light yellowish brown. The tips are bent back.

Systematics and distribution

Tylecodon sulphureus is distributed in South Africa in the Northern Cape Province in the Succulent Karoo on quartz gravel plains. It was first described in 1977 by Helmut Richard Tölken as Cotyledon sulphurea . Tölken himself placed the species in the genus Tylecodon in 1978 .

There are two subspecies:

  • Tylecodon sulphureus subsp. sulphureus
  • Tylecodon sulphureus subsp. armianus van Jaarsv. ; rose-reddish or white corolla, flowers a month later than the parent species

literature

  • E. van Jaarsveld: Tylecodon . In: Urs Eggli (Ed.): Sukkulenten-Lexikon Volume 4 Crassulaceae (Dickblattgewächse) Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , p. 379.

Individual evidence

  1. ^ Helmut Richard Tölken: New taxa and a new combination in the genus Cotyledon . In: Bothalia . Volume 12, Issue 2, p. 191, 1977 ( PDF ).
  2. ^ Helmut Richard Tölken: New taxa and new combinations in Cotyledon and allied genera . In: Bothalia . Volume 12, Issue 3, p. 381, 1978 ( PDF ).

Web links

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