Mammillaria formosa subs. microthele
Mammillaria Postscripts 6: 9 (1997)
Family
Cactaceae
Genus
Species
Mammillaria formosa subs. microthele
Author
(Muehlenpf.) D.R.Hunt
Chinese genus
乳突球属
Chinese name
-
DescriptionEdit description
Central Spines
2, much stouter than the radials, 2 mm long or less.
Seeds
Rather large, black.
Description
Mammillaria formosaSN|15836]]SN|15832]] subs. microthele is a low-growing flattened plants, clumping with tight, short white spines which forms low, many-headed, mounds in time. Some authors consider Mammillaria formosaSN|15832]]SN|15832]] subs. microthele to be sufficiently distinct to deserve its own formal status
Note
The so called “superfina” is a particular nice selected form with even more small tubercles and spines.
Tubercles
About 6 mm long, naked or woolly in their axils.
Flowers
Small (3-5 mm) long in a ring around the sides of the stem, nearly pure white to flesh-coloured without, white within.
Blooming Season
Flowers are produced in spring over a several weeks period.
Stem
Almost discoidal to globose, apically depressed, dividing dichotomously, each stem are up to 6 cm in diameter.
Radial Spines
22-24 tiny, white-setiform, spreading, 2 to 4 mm long that almost obscure the stem.
Fruits
Clavate, 10 (or more) mm long.