Mammillaria flavicentra.
It grows later slightly clavate-cylindrical. The hyaline spines, up to 24 radials and up to 6 centrals, have a browny
base, the longest ones become up to 6 mm long (centrals) and initially are yellowish. The red flower has a diameter of 4 mm; the fruit is
club-shaped, white-green below, rose coloured at the top. Old specimens grow up to 18 cm. high. The species was also found on the road Tehuacan-Oaxaca, in the border district of the two states. The sap is watery, the arrangement of the tubercle spirals, 21:34.
From "The Journal of the Mammillaria Society" Vol.IV n.5 - October 1964
M. flavicentra Backeb., Descr. Cact. Nov. 3:8. 1963, and in Kakteenlexikon 238, fig. 212. 1966.
Solitary, at first globose, becoming clavate-cylindric; sap watery ('?); axils woolly.
Central spines 4-6, about ! ;-6rm . long, slender subulate, yellow;
Radial spines 22-24, about 2-4mm, long; slender subulate, white.
Flowers red, about 3-4mm. in diameter; fruit about 1.5cm. long, clavate,whitish green at base, pink above; seeds dark.
Mexico:. Between Tehuacan and Oaxaca, F.C. Buchenau. (Although aspecimen was designated type by Backeberg, it seems probable that it was a living specimen, which under the International Code of Botanical Nomenclature cannot serve as a nomenclatural type; consequently the name may be invalid.)
This 'species ' appears to be no more than a redescription of M. celsiana, of which, I understand, Buchenau himself considered it to be a form.
From "The Journal of the Mammillaria Society" Vol.IX - n.3 - June 1969
Mammillaria flavicentra ML 194
ML 194 - Pala, above Coxcatlan, 2250m - Puebla - Mexico
From Giuseppe Ruini collection - Rubiera
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