A STUDY ON THE POLLEN FLORA OF SUDAN

This study illustrates, using both light and scanning electron microscopy, 320 Sudanese plant species of which the pollen grains of about 2/5 are described for the first time. The material examined is selected among the recognized ecological indicators, endemic species, and taxa recorded in Quaternary deposits of Sudan. Notes on habit, habitat and distribution for each species examined is included. In the pollen identification, an illustrated master key comprising 20 pollen classes was constructed, followed by a detailed illustrated key to the pollen types. Comments to previous descriptions are also included and discussed.