Mammillaria berkiana
Kakteen Sukk. A.B.Lau
Family
Cactaceae
Genus
Species
Mammillaria berkiana
Author
A.B.Lau
Chinese genus
乳突球属
Chinese name
-
Accepted
DescriptionEdit description
Central Spines
5 to 8, one more central, 2 to 4 hooked and 10 mm long, the others 4 to 5 mm long and straight, red-brown, whitish at base.
Seeds
Black.
Description
Plants at first solitary or clustering in the course of time with up to 40 stems.
Roots
Taproots.
Flowers
Bell shaped, deep set, dark purple-pink, not widely opening, to 10 mm in diameter. Perianth-segments oblong, obtuse. Stigmas purple.
Blooming Season
Autumn-winter to spring, the flowers remain open for five or six days, exceptionally more.
Stem
Globose, olive-green to dark green, 4 to 6 cm in diameter with latex. The axil is without bristles occasionally with scarce wool.
Radial Spines
Numerous 35 to 38, widely spreading, up to 6 mm long, the upper up to 4 mm, white, fine, needle-like.
Fruits
Club-shaped, 15 - 20 mm long, whitish to pink.