Micro Morphological Leaf Epidermis Characters and Palynological Studies in four Taxa of Convolvulaceae by Scanning Electron Microscope (SEM)

Abstract

Micromorphology of leaf epidermis, and pollen grain of Convolvulus arvensis L., Convolvulus pilosellifolium Desr., Cressa cretica L., and Cuscuta spp (Convolvulaceae) were investigated under scanning electron microscope(SEM), cuticle layer appeared as crossing or parallel filament zones, epidermis cells unequal in shape and size, mostly the cells of the adaxial are larger than the abaxial epidermis. Paracytic stomata occurring in both side except genus Cressa cretica no stomata in adaxial side, C. pilosellifolium has two types of trichomes appeared on abaxial side, unicellular and peltate glandular trichomes. pollen grains of all studied taxa were monad, radial symmetry and isopolar. The pollen grains generally were tricolporate, small to medium in size, The shape were prolate, micro reticulate sculpturing.