Origin and Habitat: Ferreria, Jalisco (Mexico, Northern America)
Habitat: The plant is found on porous stones and basalt rocks, in a bit of humus soil. Altitude 1500-1600 m.

• Mammillaria supraflumen Repp.

• Mammillaria nunezii (Britton & Rose) Orcutt
• Ebnerella nunezii (Britton & Rose) Buxb.
• Neomammillaria nunezii Britton & Rose
• Mammillaria hubertmulleri Repp.
• Mammillaria nunezii var. solisii (Britton & Rose) Backeb.
• Ebnerella solisii (Britton & Rose) Buxb.
• Mammillaria solisii (Britton & Rose) Boed.
• Neomammillaria solisii Britton & Rose
• Mammillaria silvatica Repp.
• Mammillaria supraflumen Repp.
• Mammillaria wuthenauiana Backeb.

• Mammillaria nunezii subs. bella (Backeb.) D.R.Hunt
• Mammillaria bella Backeb.
• Neomammillaria bella (Backeb.) Y.Itô

Description: It is a small cactus covered with wool, spines and showy flowers in June. It is usually solitary, but occasionally forms offsets.
Stem: Pale green, spherical to cylindrical, sunken apically, 30 - 100 mm high, 40 - 70 mm in diameter (or more in cultivation). Without latex.
Tubercules: 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.
Areoles: Large, white and woolly.
Roots: Fibrous.
Radial spines: 20 - 25, stiff, bristle-like, straight, expanding, the uppermost being the shortest, glassy white, 3 - 7 mm long.
Central spines: 5 - 9, needle-like, straight (sometimes one is hooked), brown to reddish, 7 - 15 mm long.
Flowers: Funnel-form, dark carmine to magenta, 13 - 15mm long and 10 - 12 mm in diameter.
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)
Seeds: Brown, round to club-shaped, 0,9 mm long and 0,8 mm in diameter, testa striated, hilum subbasal.
Blooming season: April - July.
Remarks: This plant is now referred to: Mammillaria nuneziiSN|20620]]SN|20620]]. The differences with M. nunezii are very few: only the fruit's colour, and its having fewer spines.

Cultivation and Propagation: An easy-to-grow and easily flowering species, but not a fast grower, that may make large clumps given the best conditions. Some plants will offset, and moderately large-sized clumps can be produced in a few years.
Water regularly in summer, but do not over-water (rot prone). Use a pot with good drainage and a very porous potting media, and keep dry in winter. Feed with a high potassium fertilizer in summer. Avoid frost. Reputedly sensitive to low temperatures, but less so if kept on the dry side prior to, and during, cold weather. Outside full sun or afternoon shade, inside it needs bright light, and some direct sun. Tends to get yellowish in strong light, which encourages flowering and heavy wool and spine production.
Propagation: Direct sow after last frost, or division of larger plants.