Xerophyte

Habit

Solitary, occasionally clustering.

Central Spines

1 to 3, sometimes 4, flexible, mostly hooked, stronger than the radials, glassy white with reddish brown tips, 10 to 12 mm long.

Seeds

Black, globular, 1mm in diameter.

Description

Mammillaria viescensisSN|25133]]SN|9183]] is a tiny controversial species with slender hooked central spines from Coahuila, now considered by Glass and Fitz-Maurice a local form of Mammillaria gasserianaSN|9183]]SN|9179]] with thinner central spines.First description by Rogozinski Appenzeller, Mitteilungsblatt des AfM 13(4) : 152 - 160. 1989.

Roots

Whitish pink, fleshy.

Flowering Period

Spring.

Tubercles

Cylindrical, dull green, 6 mm long and 2,5 mm in diameter. Axil naked.

Flowers

Funnelform, 14 mm long and 10 mm in diameter, whitish to pink with reddish brown midstripes.

Stem

Flattened globose, 1-2 cm tall and 3 cm across. Without latex.

Radial Spines

55 to 70, mostly 60, glassy white, yellowish brown at base, flexible, bristle like, radiating, flattened against the stem surface, 5 mm long.

Fruits

Red, cylindrical, 14 to 20 mm long, 2 to 3 mm in diameter, ripens 4 months after flowering.