Mammillaria graessneriana

No. 14: Mammillaria graessneriana Boedeker.
Mammillaria graessneriana Boedeker, Monatsschr. Kakteenk. 30:84:1920.
Neomammillaria graessneriana. Br. et Rose. The Cactaceae 4:117:1923.
Body: Simple, and sparingly caespitose from base, globular to ovate, sunken at apex, 8 cm. high, 6 cm. wide; tubercles arranged in 21 and
34 spirals, dark bluish green, rounded 4-sided pyramidal, blunt at apex, with watery sap, 6-8.mm. long, 3-6 mm. wide at base. Areoles
round, to 3 mm. wide with rich snow white wool, very soon becoming naked. Axils with short, snow white wool in apex, often persisting,
but no bristles.
Spines: Centrals, 2-4, at first only 2, later 4, to 8 mm. long, stout acicular, straight, stiff, not enlarged at base, dull reddish brown
lighter at base, when 2; divergent dorsally and ventrally, when 4, in cross formation, wide spreading. Radials, 18-20, 6-8 mm. long acicular,
straight; stiff, glossy white, horizontal.
Flowers:- Lateral, small. Perianth segments reported to be red? Fruit and seeds unknown.
Distribution: Central States of Mexico. Type locality: None given.
From "The Journal of the Mammillaria Society"  Vol.II  n.5  - October 1962

Mammillaria graessneriana
With no recorded origins for this plant, apparently closest to M.columbiana,
it is a name best discarded as insufficiently known, and at this distance in time from its original description, best forgotten.
Mammillaria - John Pilbeam pag.327






Mammillaria graessneriana
Seeds from Mesa Garden - MG 661