Piptanthocereus jamacaru var. caesia (Salm-Dyck) Riccob. in Boll. Reale Orto Bot. Palermo 8: 230. 1909
Piptanthocereus jamacaru var. caesia in Boll. Reale Orto Bot. Palermo 8: 230. 1909
is new combination for Cereus jamacaru var. caesius in Monatsschr. Kakteenk. 18: 90. 1908