Palynological Diversity In Dicotyledonous Species: Morphological And Taxonomic Insights

Abstract

This study conducted a detailed examination of pollen morphology across 26 species belonging to 24 genera from diverse dicot families in Annamalai Nagar, Chidambaram, Tamil Nadu. The selected species included representatives from families such as Acanthaceae, Apocynaceae, Bignoniaceae, Capparaceae, Caricaceae, Commelinaceae, Cucurbitaceae, Fabaceae, Lamiaceae, Liliaceae, Malpighiaceae, Malvaceae, Moringaceae, Nyctaginaceae, Nymphaeaceae, Oleaceae, Rubiaceae, Rutaceae, and Solanaceae. Pollen grains were collected from various localities and analyzed using light microscopy to assess their morphological characteristics. Key features examined included pollen grain size, shape, symmetry, aperture type, and surface ornamentation. The study focused on identifying and documenting the variations in pollen morphology among these species, which are crucial for taxonomic classification and phylogenetic analyses. The findings contribute valuable insights into the evolutionary relationships and ecological adaptations within these plant families. Moreover, pollen morphology serves as a vital tool in understanding plant reproductive strategies, pollen dispersal mechanisms, and responses to environmental factors. This research underscores the significance of palynological studies in elucidating the diversity and adaptation of flowering plants in local ecosystems, thereby enhancing our broader understanding of plant biology and biodiversity conservation efforts.