Mammillaria stella-de-tacubaya subs. egregia
Loseblattsamml. Arbeitskreises Mammillarienfr. 2007: [1]. 2008 [2007 publ. Mar 2008] ; cf. Repert. Pl. Succ. 50: 10. 2009
Family
Cactaceae
Genus
Species
Mammillaria stella-de-tacubaya subs. egregia
Author
(Backeb. ex Rogoz. & Appenz.) Appenz. & Lizen
Chinese genus
乳突球属
Chinese name
-
DescriptionEdit description
Central Spines
Absent.
Seeds
Black.
Description
Plants usually unbranched, deep-seated in substrate and inconspicuous.
Roots
Diffuse, not enlarged.
Tubercles
Cylindrical, without latex, axils bare.
Flowers
Approx 1 cm long and in diameter; dirty greenish-white or cream, usually with sharply defined midstripes of reddish-brown.
Blooming Season
January to March
Spines
50 or more per areole, in several series but all equally thin, mostly appressed, white, innocuous, bristle-like, 0,5-6 mm, glabrous, all interpreted as radial, innermost spines shortest.
Stem
Spheric, that become somewhat cylindrical with age, grey-green, up to 5 cm in diameter and 2-7 cm tall.
Fruits
Scarlet, cylindrical or clavate, 10-25 mm long, with floral remnant persistent, ripening in June-August.