Coryphantha radians
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![]() Coryphantha radians |
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Scientific name | ||||||||||||
Coryphantha radians | ||||||||||||
( DC. ) Britton & Rose |
Coryphantha radians is a species of plant in the genus Coryphantha from the cactus family(Cactaceae). The specific epithet radians comes from Latin , means 'radial' and refers to the thorns of the species.
description
Coryphantha radians usually grows individually and only sometimes forms groups. The spherical to slightly cylindrical, dark green shoots reach a diameter of 5 to 8 centimeters. They are tightly wrapped in the thorns. The large warts are egg-shaped. The axillae and the wart furrows are covered with white wool. A central spine is usually missing. If it is there, it is slightly curved. The 16 to 18 whitish to yellowish, 1 to 1.2 centimeters long radial spines are stiff.
The bright yellow flowers have a diameter of up to 10 centimeters. The fruits are green.
Distribution and systematics
Coryphantha radians is common in the Mexican states of Durango , San Luis Potosí , Guanajuato , Querétaro, and Hidalgo .
The first description as Mammillaria radians by Augustin-Pyrame de Candolle was published in 1828. Nathaniel Lord Britton and Joseph Nelson Rose put the species in 1923 in the genus Coryphantha .
Nomenclatory synonyms are Echinocactus radians (DC.) Poselg. (1853) and Cactus radians (DC.) Kuntze (1891). Another synonym is Coryphantha bernalensis L. Bremer (1984).
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 158 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 199.
- ↑ Augustin-Pyrame de Candolle: Revue de la famille des cactées . In: Mémoires du Muséum d'Histoire Naturelle . Volume 17, 1828, p. 111 (online) .
- ^ NL Britton , JN Rose : The Cactaceae . Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 36-37 ( online ).
Web links
- Herbarium from Coryphantha radians