Coryphantha elephantidens ssp. elephantidens:

Ariocarpus agavoides:

Ariocarpus agavoides:

Ariocarpus fissuratus var. fissuratus SB 413:

Ariocarpus kotschoubeyanus var. elephantidens MG 30:

Ariocarpus kotschoubeyanus var. macdowellii:

Ariocarpus retusus var. retusus form C, MG 33.83:

Ariocarpus retusus var. retusus form D, MG 33.84:

Ariocarpus retusus var. retusus form E, MG 33.85:

Ariocarpus trigonus var. trigonus:

Ariocarpus bravoanus ssp. bravoanus:

Ariocarpus fissuratus var. fissuratus:

Ariocarpus retusus var. furfuraceus:

Ariocarpus retusus var. retusus:
