Place of Publication
Succulenta (Netherlands) 40(12): 20 (1961)
References
-
Ritter (1961b)
Ritter, F. 1961. Pyrrhocactus gracilis Ritter spec. nova Succulenta (Netherlands) 40(12):129-131
Pilocopiapoa solaris
Copiapoa solaris
(F. Ritter) F. Ritter
Succulenta (Netherlands) 40(12): 20 (1961)
Ritter, F. 1961. Pyrrhocactus gracilis Ritter spec. nova Succulenta (Netherlands) 40(12):129-131