Ipomoea santillanii O'Donell Ipomoea santillanii O'Donell, An. Inst. Biol. Univ. Nac. Autón. Méx. 12(1): 93. 1941 sec. Carranza 2008=Calonyction ventricosum Hallier f. in Bot. Jahrb. Syst. 16(4–5): 556. 1893 syn. sec. Wood & al. 2020