Titanopsis calcarea

Titanopsis calcarea
	Titanopsis calcarea
Systematics
	Nuclear eudicotyledons
Order :	Clove-like (Caryophyllales)
Family :	Midday flowers (Aizoaceae)
Subfamily :	Ruschioideae
Genre :	Titanopsis
Type :	Titanopsis calcarea
Scientific name
	Titanopsis calcarea
	( Marloth ) Schwantes

Titanopsis calcarea is a plant of the genus Titanopsis from the family of aizoaceae (Aizoaceae). The specific epithet calcarea comes from Latin , means 'chalky' or 'chalky' and refers to the fact that the speciesgrowson limestone .

description

Titanopsis calcarea usually grows sunk into the ground with rosettes of leaves 6 to 8 centimeters in diameter. The spatulate, flat and up to 35 millimeters long leaves are covered at their tips with large, separated warts that are covered with short papillae of the same length . The epidermis of the warts contains crystal sand in the upper part .

The golden yellow, almost orange flowers have a diameter of up to 2 centimeters. The stems of the capsule fruits, which are bell-shaped at the base, are more robust than those of other species of the genus. Their valve wings are tapered towards their tip. Closure bodies are very rarely present. The fruits reach a height of more than 5 millimeters. The light brown seeds are 0.7 to 0.9 millimeters long and 0.55 to 0.7 millimeters wide. The cells of their seed coat are slightly raised.

The number of chromosomes is . ${\ displaystyle 2n = 18}$

Systematics and distribution

Titanopsis calcarea is distributed in South Africa in the east of the Free State Province , in the east and north of the North Cape Province and in the south of the Northwest Province on limestone plains between scree. It grows in areas with more than 200 millimeters of rainfall annually, which fall from March to summer.

The first description of the species as Mesembryanthemum calcareum by Rudolf Marloth was published in 1907. Gustav Schwantes placed the species in the genus Titanopsis in 1927 .

Titanopsis fulleri table is a synonym . (1935).

proof

literature

Heidrun EK Hartmann (Ed.): Illustrated Handbook of Succulent Plants: Aizoaceae AE . Springer Verlag, Berlin / Heidelberg / New York 2001, ISBN 3-540-41691-9 , pp. 329 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 37.
↑ ^a ^b ^c Hermann Jacobsen : The succulent dictionary. Brief description, indications of origin and synonymy of the succulent plants with the exception of the Cactaceae . 3rd reviewed edition, Gustav Fischer, Jena 1983, p. 555.
^ Rudolf Marloth: Some new South African Succulents . In: Transactions of the South African Philosophical Society . Volume 18, 1907, pp. 45-46 ( online ).
^ Journal of Succulents . Volume 2, 1926, p. 178.

Web links

Commons : Titanopsis calcarea - Collection of images, videos and audio files

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 37.

[jacobsen-2] Hermann Jacobsen : The succulent dictionary. Brief description, indications of origin and synonymy of the succulent plants with the exception of the Cactaceae . 3rd reviewed edition, Gustav Fischer, Jena 1983, p. 555.

[3] Rudolf Marloth: Some new South African Succulents . In: Transactions of the South African Philosophical Society . Volume 18, 1907, pp. 45-46 ( online ).

[4] Journal of Succulents . Volume 2, 1926, p. 178.