Pollen Morphology of Ten Species Found in Nyaung Myint Village, Meiktila Township

The pollen morphology of ten species found in Nyaungmyint village, Meiktila Township were studied. The plant specimens of 10 species belonging to 10 genera of 8 families were identified and classified. The pollen grains were prepared by the standard method described by Erdtman(1960). This collection record a family of basal angiosperms is Nymphaeaceae and 7 families of eudicots are Apocyanaceae, Boraginaceae, Capparaceae, Convolvulaceae, Malvaceae, Nyctaginaceae, Zygophyllaceae. The pollen units of ten species were found as polyads and monads. Polyads was occurred in only one species of Calotropic gigantea (L.) R. Br. and nine species were monads. The aperture types of pollen grains were found as porate and colporate. The pollen shapes are mostly occurred in spheroidal but rarely in oblate and prolate. The pollen grains sizes were small, medium, large and very large. The sculpture patterns of pollen grains were found as echinate, obscurely reticulate, retipilate and verrucate. An artificial key to the species was also constructed on the basic different palynological characters of pollen grains. The differences between pollen characters will support the identification and classification of species