Morphological studies on the pappus, stoma and pollen were carried out on some species of Tribe Mutisieae. The genus Pertya and Ainsliaea have striking peculiarity in the form of pappus and pollen. There are some differences between Pertya and Ainsliaea in the ratio of stoma numbers and in the number of surrounding cells of stoma. As for the anthocyan of pappus, the genus Pertya have no anthocyan except P. scandens but the genus Ainsliaea has anthocyan in the basal portion of the pappus. The genus Ainsliaea can be divided into two types according to distribution of pigment in the pappus. Diaspanthus uniflorus (Ainsliaea unifora) has karyological similarities to the species of genus Ainsliaea, and for the stoma and pappus, some morphological similarities were also found between them.