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....
L'ultima modifica di maurillio il Mar 24 Feb 2015, 18:40, modificato 2 volte