Studies in the Calyceraceae with a discussion of its relationship to Compositae

The South American family Calyceraceae is analysed and some new observations on pollen and petal epidermis‐patterns are presented. The new characters give some indication of a relationship to Compositae. The choice of Calyceraceae as the sister‐group of Compositae is discussed, and it is further suggested that Compositae, Calyceraceae, and Lobeliaceae constitute a clade. Two new specific combinations in the Calyceraceae are formally established: Gamocarpha alpina and Calycera andina.