Micromorphology of Cypsela in the tribe Plucheeae from Pakistan

摘要

Micromorphological characters of 4 genera (Doellia Sch.-Bip., Laggera Sch.-Bip. ex C. Koch Pluchea Cass. and Psewloconyza Cuatrec.) and 7 specific and infra specific taxa in the tribe Plucheeae were examined from Pakistan by light and scanning electron microscopes. Cypsela characters support the taxonomic decisions, as all the taxa are clearly segregated on the basis of their distinguishable characters except that of the two subspecies of Pluchea arquta.