Mammillaria caerulea

M. caerulea Craig, Mamm. Handbook 306, f i g . 278. 1945; Cact. Succ. Journ. Amer, 18: 114. 1946
Stem simple, clavate; sap milky; flowering a x i l s woolly, but bristles typically absent.
Central spines 3-6, mostly 4, 8-10mm. long, dark brown at f i r s t becoming reddish chalky brown;
Radial spines 18-20, l-5mm. long, setaceous, white.
Fls. 15mm. long, 12mm. in diam., the perianth-segments vfhitish with pale pink or pinkish tan midstripe;
Stigmas 2~3 pale yellow.
Mexico: Coahuila, near Saltillo. Received by Craig from Schmoll.
Although this species i s described as typically without bristles in the axils, it may be related to M. ritteriana Boed. (especially the var . quadricentralis Craig), which was also collected in Coahuila (Higueras, between Monterrey and Saltillo ) .
From "The Journal of the Mammillaria Society"    Vol. VIII - n.3 - June 1968




Mammillaria caerulea

Mammillaria caerulea










Mammillaria caerulea






Mammillaria caerulea
From "Ento" Ennio Toso collection - Savona