Mammillarias.net

Mammillaria surculosa

First description by Boedeker, Monatsschr. Deutsche Kakt.-Ges. 3: 78 (1931)

Body: Plants solitary or forming clusters. Stems globose, dark green, to 3 cm (1.2 in) high and 2 cm (0.8 in) in diameter.

Roots: Taproots stout.

Sap: Without latex.

Tubercule arrangement: 5 - 8

Tubercule: Tapering cylindrical, flabby, rounded apically.

Axil: Naked.

Radial spine: About 15, white, 8 - 10 mm (0.3 - 0.4 in) long.

Central spine: 1, hooked, needle-like, amber yellow with dark tip, to 20 mm (0.8 in) long.

Flower: Funnelform, sulpher yellow, sweetly scented, to 18 mm (0.7 in) in diameter.

Fruit: Green to greenish brown.

Seed: Brown.

Flowering period in Cultivation (Europe):

Minimum temperature: -2? C.

Habitat Substrate:

Geographic Distribution: Tamaulipas, San Luis Potosi, Mexico. Altitude 1.000 - 1.200 m.

Comments:

Bibliography:
John Pilbeam (1999) - Mammillaria The Cactus File Handbook - page 285.
Edward F. Anderson (2001) - The Cactus Family - page 446.

Synonymes:
Dolichothele surculosa