Mammillaria sinforosensis subs. cobrensis
Kakteen Sukk. 58(9): 236. 2007 [Sep 2007]
Family
Cactaceae
Genus
Species
Mammillaria sinforosensis subs. cobrensis
Author
(Repp.) Lizen & R.Schumach.
Chinese genus
乳突球属
Chinese name
-
Accepted
DescriptionEdit description
Central Spines
2-4, straight, acicular/subulated, rigid, divergent, golden brown, reddish to almost black, the 2-3 uppermost short (approx 4 mm long) long, The lowermost longest 4-12 mm long (or more).
Seeds
Brown.
Description
Mammillaria lindsayiSN|20796]]SN|20796]] var. cobrensis is a local or morphological form of Mammillaria lindsayiSN|20796]]SN|20796]] distinguishable from the type for the stem that is always solitary with a very woolly apex. The stem is dark green and lacks of bristles in the woolly tubercles axil.
Tubercles
Conical to quadrangular, keeled, arranged in numerous, close-set spirals. (Parastichy number 13-21) with dense white axillary wool and up to 8 white, without twisted bristles.
Flowers
Small, funnelform, 15-20 mm long, to 10 mm in diameter, light greenish yellow with orange-yellow midveins. Stamens above the nectar-chamber.
Stem
Symmetrically globose, dark-green, depressed, with apex that appears completely covered by dense white wool, 12-15 cm high and in diameter. With latex.
Radial Spines
10-14, white with tan to golden yellow bases, 2 - 8 mm long, upper ones shortest.
Fruits
Club shaped to cylindrical, attractively deep coloured dull pinkish-red to scarlet, up to 20 mm long and 2-3 mm wide.
Areoles
Oval and with white wool when young.