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5 541888 Hylocereus trigonus (Haw.) Saff. [116 226619 Cereus trigonus Haw.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 4(2): fasicle 108, (Balanophoreae; Aristolochiaceae; Rafflesiaceae; Nymphaeaceae; Cactaceae): p. 208, t. 42 (1890)
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