Xerophyte

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.