Place of Publication
Succulenta (Netherlands) 39(6): 65 (1960)
References
-
Ritter (1960f)
Ritter, F. 1960. Pyrrhocactus robutus Ritter spec. nova. Succulenta (Netherlands) 39(6):65-68
Pyrrhocactus robutus
Eriosyce curvispina
(Bertero ex Colla) Katt.
Succulenta (Netherlands) 39(6): 65 (1960)
Ritter, F. 1960. Pyrrhocactus robutus Ritter spec. nova. Succulenta (Netherlands) 39(6):65-68