Calymmanthium substerile F.Ritter in Kakteen And. Sukk. 13: 25. 1962

Isotype: Peru, Cajamarca, Jaén, lower part of Huancabamba gorge, Bucara [Pucará], 1954, F. Ritter FR 315 (SGO)

Holotype: Peru, Cajamarca, Jaén, lower part of Huancabamba gorge, Bucara [Pucará], 1954, F. Ritter FR 315 (U: 097800B)

Isotype: Peru, Cajamarca, Jaén, lower part of Huancabamba gorge, Bucara [Pucará], 1954, F. Ritter FR 315 (ZSS)

Taxon for this name