Oxypetalum longipedunculatum (Malme) Goyder & Rapini, comb. nov.

Basionym: Schistogyne longipedunculata Malme (1933: 11; f. 1c, 2c). Type: ARGENTINA. Salta: Candelaria, Cerro del Chorrillo, 27 April 1925, S. Venturi 3780 (Lectotype (here designated) S!, duplicates LIL!, MO!, SI!, US!). Paratype: ARGENTINA. Tucuman: Parque Centenario, 15 January 1928, S. Venturi 5733 (MO!, S!) .