Estudo polínico das espécies de Aquifoliaceae, Euphorbiaceae, Lecythidaceae, Malvaceae, Phytolaccaceae e Portulacaceae ocorrentes na restinga da Ilha do Cardoso (Cananéia, SP, Brasil)

Abstract

The Cardoso Island with 22,500 ha is situated in Cananéia municipality, State of São Paulo, Brazil (25° 03'05'' - 25° 18'18'' S and 47° 53'48''- 48° 05'42'' W). This study aimed to characterize the pollen morphology of 20 species belonging to the families Aquifoliaceae, Euphorbiaceae, Lecythidaceae, Malvaceae, Phytolaccaceae and Portulacaceae (one of them with two varieties), ocurring in "restinga" of Cardoso Island. Pollen grains were obtained from Herbário do Estado "Maria Eneyda P. Kauffman Fidalgo" (SP) collections. The pollen material was acetolysed, measured and photographed by light microscopy, and scanning electron microscopy. Pollen grains of the examined families are inaperturate, 3-colpate, 3-colporate, pantocolpate and pantoporate; exine psilate, rugulate, reticulate, clavate, Croton-pattern, echinate.