Ariocarpus

fissuratus
fissuratus f. SanLuisPotosi
furfuraceus v. rostratus
kotschoubeyanus
kotschoubeyanus ssp. albiflorus
kotschoubeyanus v. elephantidens
kotschoubeyanus v. macdowelii
kotschoubeyanus f. rioverdensis
lloydii
retusus
retusus v. elongatus
trigonus
trigonus v. elongatus