The genus Aztekium contains three species of small globular cactus. Discovered in 1929 by F. Ritter, in Rayones, Nuevo León, Mexico, this genus was thought to be monotypic (with Aztekium ritteri) until a second species (Aztekium hintonii) was discovered by George S. Hinton, in Galeana, Nuevo León in 1991. A further species, Aztekium valdesii, wa...
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http://en.wikipedia.org/wiki/Aztekium
This group consists of only two, slow-growing cacti native to Mexico. These spherical, grayish-green or green cacti have alternating main and secondary ribs. The main ribs have fuzzy areoles; the secondary ones do not. A. ritteri is a clustering species that produces flattened stems, up to 11/2 inches in diameter, from a thick taproot. The stems ha...
Found on
http://www.encyclo.co.uk/local/10004
No exact match found.
