Mammillaria pennispinosa
Mammillaria pennispinosa
Mammillaria pennispinosa is a plant of the genus Mammillaria in the cactus family ( Cactaceae ). The specific epithet pennispinosa means thorny feathery '.
Description
Mammillaria pennispinosa grows singly or later forms groups and has a thick taproot. The spherical impulses reach stature heights 3-4 centimeters and just such diameter. The cylindrical warts are soft fleshy flaccid. They contain no latex. The axillae are initially woolly and verkahlen later. The 1-3 fluff hairy, brownish red central spines are yellow at their base. They are 10 to 12 millimeters long. One of the central spines hooked. The fiederig - fluff hair-like, grayish white to yellow to orange to reddish 16 to 20 radial spines are slender, straight and 5-8 millimeters long.
The white flowers have a pink center strip. They are up to 1.5 inches long and achieve just such diameter. The red fruits are 1 to 1.5 inches long and contains black seeds.
Distribution, systematics and hazard
Mammillaria pennispinosa is common in the Mexican states of Coahuila and Durango.
The first description was in 1948 by Hans Krainz. Nomenclatural synonyms are Phellosperma pennispinosa ( Krainz ) Buxb. (1951) and Escobariopsis pennispinosa ( Krainz ) Doweld (2000).
Mammillaria pennispinosa was in the Red List of Threatened Species IUCN in 2002 as ' Endangered ( EN )', ie endangered classified. In 2013 it is described as " Critically Endangered (CR ) ', ie threatened with extinction out.