Pseudoespostoa melanostele (Vaupel) Backeb. in Kakteen-Freund 1: 52. 1933
Pseudoespostoa melanostele in Kakteen-Freund 1: 52. 1933
is new combination for Cephalocereus melanostele in Bot. Jahrb. Syst. 50(2-3, Beibl. 111): 12–13. 1913
Pseudoespostoa melanostele in Kakteen-Freund 1: 52. 1933