Palynodiversity of some spices of Sida from Bilaspur Region, Chhattisgarh

Palynotaxonomical studies of 4 species of Sida from Bilaspur region were performed with the help of numerical analysis, Hierarchial Cluster analysis by using SPSS. The morphological features namely size, shape, apertures, exine ornamentation, pore number, pore size and spine characters of pollen grains were investigated using Light Microscopy. Generally pollen grains of genus Sida are spheroidal and have polyporate aperture. The cluster analysis of pollen characters of genus Sida claearly indicates the presence of two major categories on the basis of shape and aperture of pollen grains. Pollen morphological characters are quite important and helpful in delimiting of 4 species of taxa., viz., Sida acuta, Sida cordata, Sida rhombifolia and Sida spinosa.