Xerophyte

Central Spines

5 - 9, needle-like, straight (sometimes one is hooked), brown to reddish, 7 - 15 mm long.

Seeds

Brown, round to club-shaped, 0,9 mm long and 0,8 mm in diameter, testa striated, hilum subbasal.

Description

It is a small cactus covered with wool, spines and showy flowers in June. It is usually solitary, but occasionally forms offsets.

Roots

Fibrous.

Note

This plant is now referred to

Tubercles

Conical to four-angled, pyramidal, firm, with a humpbacked epidermis, 7 - 9 mm long and 5 - 7 mm in diameter. The axil is scarcely wolly with a few bristles.

Flowers

Funnel-form, dark carmine to magenta, 13 - 15mm long and 10 - 12 mm in diameter.

Stem

Pale green, spherical to cylindrical, sunken apically, 30 - 100 mm high, 40 - 70 mm in diameter (or more in cultivation). Without latex.

Radial Spines

20 - 25, stiff, bristle-like, straight, expanding, the uppermost being the shortest, glassy white, 3 - 7 mm long.

Fruits

Ovoid to club-shaped, carmine, 10 - 15 mm long and 6 - 8 mm wide, ripens 12 - 14 months after flowering. (while in Mammillaria nuneziiSN|20620]]SN|20620]] the fruit is greenish-white, tinged with pink)

Areoles

Large, white and woolly.