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6 371826 Echinopsis macrogona (Salm-Dyck) Friedrich & G.D.Rowley (Salm-Dyck) Friedrich & G.D.Rowley [Cereus macrogonus Salm-Dyck]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 4(2): fasicle 108, (Balanophoreae; Aristolochiaceae; Rafflesiaceae; Nymphaeaceae; Cactaceae): t. 40 (1890)
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