The Genera of the Eupatorieae (Asteraceae). 1987. (Monographs in Systematic Botany, 22). 1 colour frontispiece. many line figures. 580 p. gr8vo. Paper bd.

Starting in 1966 the authors have provided a series of partialrevisions of the Eupatorieae, publishing over 200 papers on the group.The Genera provides a synthesis of their contributions to ourunderstanding of this species-rich group: one in every 150 species offlowering plants belongs to the Eupatorieae. This new work treats all180 genera of the tribe with a description, full-page illustration,discussion, and listing of recognized species and their distributions.Keys to all the subtribes and genera and regional keys for portions oftropical America are included. A nomenclator of the over 6000 specificand infraspecific names that have been placed in the tribe at one timeor another indicates their present disposition.