Zygia unifoliolata (Benth.) Pittier Zygia unifoliolata (Benth.) Pittier, Cat. Fl. Venez. [Pittier] 1: 359. 1945 sec. Barneby & Grimes 1997≡Pithecellobium unifoliolatum Benth., London J. Bot. 3: 212. 1844 syn. sec. Barneby & Grimes 1997