Gymnocalycium castellanosii subs. ferocius
Cactaceae Syst. Init. 20: 18. 2005 [Nov 2005] (a.k.a.as "ferocior")
Family
Cactaceae
Genus
Species
Gymnocalycium castellanosii subs. ferocius
Author
(Backeb. ex H.Till & Amerh.) G.J.Charles
Chinese genus
裸萼球属
Chinese name
-
DescriptionEdit description
Central Spines
1(-2), 18 to 20 mm long.
Description
Solitary, strongly armed cactus.
Note
The taxonomy of this species is not clear. The former synonym Gymnocalycium castelanosii (As indicated by Backeberg) seems to be incorrect, and Slaba also separated it from Gymnocalycium hybopleurumSN|15762]]SN|15762]] (Gymnocalycium hybopleurumSN|15762]]SN|15762]] v. ferox backbg). Prevalently, this controversial species is now considered as Gymnocalycium mostii ssp. ferocior.
Spines
Subulate, stout, thick and curving, yellowish or amber-coloured with darker tips, becoming grey with age.
Ribs
Deeply notched, with prominent, chin-like tubercles.
Stem
Dark green, depressed globose, up to 13 cm in diameter, 6-7 cm tall.
Radial Spines
7-11, unequal, 6 to 22 mm long.