Neolloydia
| Neolloydia | ||||||||||||
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Neolloydia conoidea |
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| Scientific name | ||||||||||||
| Neolloydia | ||||||||||||
| Britton & Rose |
Neolloydia is a genus of plants from the cactus family(Cactaceae). The botanical name of the genus honors the botanist Francis Ernest Lloyd (1868–1947). The addition "Neo" was necessary because the name Lloydia was already given to a genus of the lily family (Liliaceae).
description
The small, low-growing species of the genus Neolloydia are solitary or form loose cushions. The slightly yellowish green shoots have for ordinary whitish wooly vertices and are spherical to cylindrical. With a diameter of 3 to 6 centimeters, they reach heights of growth of 5 to 24 centimeters. Ribs are weak or absent. The conical, 3 to 10 millimeters long and 6 to 10 millimeters wide warts, on the other hand, are clearly pronounced. The dimorphic areoles , 3 to 5 millimeters in diameter , are 8 to 12 millimeters apart and have an areolar furrow. The 1 to 2 (rarely up to 6) central spines , which can also be missing, are variable, black to reddish-brown, straight and upright. They are between 5 and 25 millimeters long. The radiant, straight radial spines are all white or whitish with a dark tip and reach a length of 5 to 7 millimeters.
The rather small, funnel-shaped flowers are purple, 2 to 3 inches long with a diameter of 4 to 6 inches. Your flower cup is bare.
The round, green, later turning greenish-brown fruits are bare, do not tear and have a diameter of 4 to 5 millimeters. They contain black, pear-shaped, waxed seeds .
Systematics and distribution
The distribution area of the genus Neolloydia extends from West Texas , south through the Chihuahua Desert to the north from Mexico to Querétaro .
The genus was first described in 1922 by Nathaniel Lord Britton and Joseph Nelson Rose . The type species of the genus is Mammillaria conoidea . The genus includes the following species:
- Neolloydia conoidea (DC.) Britton & Rose
- Neolloydia inexpectata D. Donati
- Neolloydia matehualensis Backeb.
Napina Frič is a synonym of the genus .
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 441-442 .
Individual evidence
- ^ NL Britton, JN Rose: Two new genera of Cactaceae . In: Bulletin of the Torrey Botanical Club . Volume 49, 1922, pp. 251-252 ( online ).
- ^ Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 441-442 .
- ↑ Davide Donati: A new, unexpected species belonging to the genus Neolloydia Br. & R .: Neolloydia inexpectata D. Donati sp. nov. In: Piante Grasse . Volume 32, Number 3, 2012, pp. 2–9 ( PDF ( Memento of the original from July 27, 2013 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and remove then this note. ).
further reading
- Edward F. Anderson: A revision of the genus Neolloydia B. & R. (Cactaceae) . In: Bradleya . Volume 4, 1986, pp. 1-28.
