Mammillaria guillauminiana
Mammillaria guillauminiana
Mammillaria guillauminiana is a species of the genus Mammillaria in the cactus family ( Cactaceae ). The specific epithet honors the French botanist André Guillaumin ( 1885-1974 ).
Description
Mammillaria guillauminiana grows singly or in groups, forming a taproot. The spherical bright green shoots reach stature heights of up to 5.5 centimeters and just such diameter. Your warts are conical, the axils bare. The 4-5 brown, to 6 mm long central spines are darker at the top. The lower central spine is hooked. The 30 to 32 bristle-like white spines are 6-7 millimeters long.
The white flowers have a pink center strip are 8 to 10 millimeters long and achieve just such diameter. The red fruits contain black seeds.
Distribution, systematics and hazard
Mammillaria guillauminiana is common in the Mexican states of Durango and Sinaloa.
The first description was in 1952 by Curt Backeberg. Synonymous with the following variety has been described: Mammillaria mercandensis var guillauminiana ( Backeb. ) Repp. (1987).
Mammillaria guillauminiana became extinct in the Red List of Threatened Species IUCN in 2002 as " Extinct in the Wild ( EW) ," that is, as in nature, classified. In 2003 the species was, however, found by Betty W. and A. Fitz -Maurice in nature. After that, the population was not re-examined, so that the type is, that is, out in 2013 as "Data Deficient ( DD)" with no sufficient data.