Mammillaria marcosii
Cact. Succ. J. (Los Angeles) 69: 10, fig. 1997
Family
Cactaceae
Genus
Species
Mammillaria marcosii
Author
W.A.Fitz Maur., B.Fitz Maur. & Glass
Chinese genus
乳突球属
Chinese name
-
Accepted
DescriptionEdit description
Central Spines
7-14, mostly needle-like, radiating, ascending, white, yellow, reddish brown or brown, 10-20 mm long, one of which is pointing downward and more or less hooked, all others straight.
Seeds
Brownish-black.
Description
Mammillaria marcosiiSN|9327]]SN|9327]] is a small cactus that readily forms irregular clumps with dense spination. In habitat the clumps may grow up to 25 cm in diameter, with up to 30 heads. The spines are bicoloured (usually red and white, but they may occur in a wide range of colours).
Note
This member of the Cactaceae family was given this name in by the Mexican cactus grower Marcos Sierra Pichardo from the city of San Miguel de Allende, who discovered the species.
Tubercles
Soft, cylindrical, with round tips. In the axil there is wool and up to 15 bristles, up to 15 mm long.
Flowers
Bell shaped, to 15 mm long and up to 10 mm in diameter, not rising above the spines, yellowish or creamy-white, with pink throat and darker pinkish midrib, stigma pale yellow.
Stem
Low, round to short cylindrical, up to 5 cm in diameter. Without latex.
Radial Spines
16-25, radiating, needle-like, straight, 4-12 mm long.
Fruits
Red, egg-shaped, 6 - 13 mm long, not arising above the spines.