MORFOLOGIA POLÍNICA DAS ESPÉCIES BRASILEIRAS DE PTEROCAULON ELL. (ASTERACEAE)

The genus Pterocaulon Ell. is a representative of the Asteraceae family, and it belongs to the tribe of Plucheeae, that in Brazilian territory has 11 species. Data are presented about the pollinic morphology of species of the genus Pterocaulon . For that, we used the by acetolysis method for optic microscopia and scanning electronic microscopy (SEM). The species studied of