Mammillaria microhelia
Mammillaria microhelia
Mammillaria microhelia is a species of the genus Mammillaria in the cactus family ( Cactaceae ). The specific epithet microhelia means small sunny, with small suns '.
Description
Mammillaria microhelia grows usually forming clumps with cylindrical medium green shoots of up to 15 inches and more plant height and diameters 3-5 centimeters. The blunt conical warts are keeled and rounded at the tip. They contain no latex. The initially slightly bewollten axillae verkahlen later. The 1-8, occasionally up to 8 central spines, which may be absent, are strong, acicular, straight or curved, reddish brown to yellowish brown and up to 11 millimeters long. The 30 to 50 radiating spines are white to yellowish, straight or slightly bent back and 4 to 6 millimeters long.
The whitish cream-colored to slightly pink to purple flowers are up to 1.5 inches long and achieve just such diameter. The white, light green or light pink fruits contain brown seeds.
Distribution, systematics and hazard
Mammillaria microhelia is common in the Mexican state of Querétaro.
The first description was in 1930 by Erich Werdermann.
Synonyms are the following species and varieties described: Leptocladia microhelia ( Werderm. ) Buxb. (1951, incorrect name ICBN article 11.4), Leptocladodia microhelia ( Werderm. ) Buxb. (1975 ), Krainzia microhelia ( Werderm. ) Doweld (2000), Mammillaria discolor var droegeana Hildm. ex Quehl (1915, nom. inval. ICBN article 32.1), Mammillaria microheliopsis Werderm. (1931 ), Leptocladia microheliopsis ( Werderm. ) Buxb. (1951, incorrect name ICBN article 11.4), Leptocladodia microheliopsis ( Werderm. ) Buxb. (1960, nom. Inval. ICBN article 33.3), Leptocladodia microheliopsis f microheliopsis ( Werderm. ) Krainz (1975) and Mammillaria droegeana Hildm. ex Repp. (1987, nom. Inval. ICBN article 36.1).
Mammillaria microhelia was in the Red List of Threatened Species IUCN in 2002 as " Vulnerable (VU) ," ie, compromised classified. In 2013, the species is considered " Endangered ( EN ) ', ie performed at high risk.