Mammillaria zeilmanniana

6, Mammillaria zeilmanniana Boedeker.
M. zeilmanniana, Boedeker, Monatsschr. Deutsch, Kakt, Ges. 1931.
Body: , Simple and occasionally branching from body and base, cylindric, little sunken at apex, to 6 cm. high 5 cm. wide. Tubercles arranged in 13 and 21 spirals, soft in texture, glossy dark loaf green ovate to short cylindric, rounded at apex, terete, With watery sap, 6 mm. long, 3 - 4 mm, wide at base. Areoles round, 1 mm. wide with scant short white wool, soon becoming naked. Axils naked.
Spines: Centrals 4, 8 mm. long, acicular, 3 upper ones straight, lower one hooked, all enlarged at base, reddish brown, lighter to yellowish at base, lower porrect, upper horizontal to ascending. Radials 15 - 18, 10 mm. long, very thin acicular to hair like, straight or slightly bent, stiff, pubescent, not enlarged at base, horizontal to slightly ascending.
Flowers: campanulate, 20 mm. wide. Outer perianth segments greenish at base, to purplish brown above, lanceolate, tip acute, margins entire, 4 - 9 x 1 - 2.5 mm. Inner perianth segments, violet red to purplish, paler below, lanceolate, tip acute, margins entire 11 x 2 mm. Filaments violet red, anthers bright yellow. Style greenish below, violet red above.
Stigma-lobes 4 yellow, small.
Fruit: , Whitish green (?) small.
Seeds: black roundish with basal oblong hilum. finely-pitted, hardly 1 mm.
Distribtuion: Guananjuato - Mexico.
Type Locality: Near San Miguel Allando.
Notes: Once more we find a common and deservedly popular species with an incomplete description.
The colour of the fruit of this species is in doubt....




Mammillaria zeilmanniana













Mammillaria zeilmanniana
The white flowered sport of Mammillaria zeilmanniana, produced in cultivation and not known to occur in the wild...