The agglutination pollen to form waxy pollinia is a rare event and is seen in the families, namely Asclepiadaceae and Orchidaceae. Terminology for the pollinia structures used has been analytically viewed. In Asclepiadaceae, the pollinial - apparatus are morphologically significant and varied. The characters of pollen - carriers and pollinial - apparatus are being used in classification of various taxa. Certain important characters of pollinial - apparatus and pollen - carriers are being considered in the text are very much valuable and they form key role in identifying species and genera. Additionally, the sites of germination of pollinia are important and distinct in different tribes of Asclepiadaceae and they are aptly placed on the stigmatic receptive surface by the highly evolved sophisticated method of insect pollination. Based on these, an evolutionary tree has been presented for the Asclepiadaceae sensu lato
