Intra-specific Pollen Morphological Variations in Ten Tropical Species Growing in Sudan PDF

Keywords

pollen grains, tropical species, Sudan

Abstract

The study re-describes pollen grains of 10 tropical species belonging to 10 families. Significant variation in different pollen morphological characters was encountered in these species which were previously reported to have homo-morphic pollen grains. Pollen samples from various flowers collected from the same plant were analysed using LM and SEM. In each of the species examined, the diagnostic characteristics of the multiple pollen forms were presented. The relative percentages of these pollen forms were designated as common and less common pollen types. The study highlights the importance of the use of many pollen samples encompassing the whole range of variability as pollen reference material in tropical regions.