Publication: Cact. Journ. Brit. 19: 67. 1957 Description Chromosome number: 2n = 22 Bibliography Major references and further lectures Juliana P. Castro, Luiz G.R. Souza, Lânia F. Alves, Ana E.B. Silva, Marcelo Guerra & Leonardo P. Felix. 1073 Marhold (ed.) “IAPT/IOPB chromosome data 15” TAXON 62 (5) • October 2013: 1073–1083
