Palynological studies in species of Ipomoea linn

In the present paper an attempt has been made to examine the relation of palynology with classification. Palynology is supposed to be an important tool for classifying the plants. The morphological characters of the pollen shall be categorized under aperture, size, shape, exine ornamentation, nature and length of spine. The aperture character is considered to be of primary importance, the exine surface pattern secondary and shape and size as tertiary. For the present investigation 16 species of Ipomoea were selected. Plants used in this study were collected from different localities of Kerala and Tamil Nadu. All the16 members of the genus Ipomoea showed pantoporate aperture morphotype, spinose exine ornamentation and spheroidal shape.