Mammillaria perezdelarosae subs. andersoniana
Cact. Succ. J. (Los Angeles) 73(5): 264. 2001
Family
Cactaceae
Genus
Species
Mammillaria perezdelarosae subs. andersoniana
Author
W.A.Fitz Maur. & B.Fitz Maur.
Chinese genus
乳突球属
Chinese name
-
Accepted
DescriptionEdit description
Central Spines
One straight, ascending, dark brown or black (red-brown when young) with brownish to yellowish base.
Seeds
Brownish black, 1 mm long and 0.6 mm wide.
Description
Mammillaria perezdelarosaeSN|11894]]SN|11894]] v. andersonii is a marvellous tiny cactus distinguishable from the standard species for its smaller size, slower growth and straight central spines (not hooked). It is believed to be one of the most beautiful Mammillaria.
Axils
With some wool.
Tubercles
Conical with rounded tips, 2 mm wide and long.
Flowers
Funnelform, 6 mm long and 8 mm wide, shiny, pale yellowish (not pink) with pale brownish midstripe. It is not surprising to see them in flower at little more that 1cm across.
Stem
Solitary, globose to somehow elongated in cultivation about 2-(-5) cm tall and maybe 2,5 cm in diameter, it is one of those plants that grows much taller in cultivation in our light levels than it does in habitat, but this subspecies doesn't seem to share that tendency. Usually without latex.
Radial Spines
50-63 about 4 mm long, symmetrically arranged, pectinate, aciculate, white to hyaline.
Fruits
Green, club shaped, 2 mm long and wide.