Frailea atrobella
Kakteen Sukk. 62(6): 156 (155-162; figs.). 2011 [Jun 2011]
Family
Cactaceae
Genus
Species
Frailea atrobella
Author
Diers, Krahn & R.Vásquez
Chinese genus
士童属
Chinese name
-
DescriptionEdit description
Central Spines
One directed obliquely upwards, the other down.
Description
Frailea atrobellaSN|3646]]SN|33267]] is a nice frailea species superficially similar Frailea mammiferaSN|33267]]SN|3646]] subsp. angelesiae, but smaller in size with a larger number of ribs, tubercles with smaller, weaker spines, shorter flowers, red berries and conspicuously flat stemmed seedlings.
Note
Lat. atrobella = freely translated as black beauty.
Flowers
Light to bright yellow opening only with high temperature and adequate humidity of the substrate. They are self-fertile.
Ribs
18 to 22 ribs broken down into tiny little tubercles carrying the areoles, beneath each tubercles there is a dark purple-brown semicircle.
Stem
Up to 25 mm in diameter, epidermis shiny dark green to violet at the base.
Radial Spines
Short (2-5 mm long) flat, reddish brown to black.