Contribui？？o preliminar aos tipos polínicos da Tribo Mutisieae (Compositae)

the present paper is a palynological study of the fourteen species of the tribe mutisieae, belong to the museum nacional herbary - rj (r). several aspects relating caracteristics of mutisieae pollen are treated such as polar and equatorial diameter, l. o.: table of statistical treatment and comparative diagrams are displayed.