Family: 119-Oxalidaceae). Pollen grains of four species of Oxalis L. of Oxalidaceae (O. corniculata L., O. debilis Kunth; O. latifolia Kunth, O. triangularis A. St.-Hil.), ocurring in the Reserva do Parque Estadual das Fontes do Ipiranga were studied in the present work. Descriptions, illustrations, and additional observations are presented for all studied taxa.
Oxalidaceae; Oxalis; pollen morphology