Pollen flora of Pakistan -LXIX. Poaceae

Pollen morphology of 54 species belonging to 30 genera of the family poaceae from pakistan has been investigated using light and scanning electron microscope. it is a stenopalynous family. pollen grains are mostly spheroidal,monoporate,rarely diporate,± circular,pore small,operculate,non-operculate,annulate or non-annulate,tectum areolate to scabrate. on the basis of exine ornamentations 5 distinct pollen types are recognized. palynology does not correspond with tribal and generic classification. however,palynology is significantly helpful at the specific level.