Synopsis Profound care has been taken to make the present book a compilation of contemporary and original information about the pollen in a lucid and non-monotonous style, and also to give unbiased and logical imterpretations to the collation of such findings. The book should thus prove indispensable to any-one undertaking research in plant reproductive biology, agriculture, biotechnology, genetic engineering, conservation of genes, cell biology and even plant-animal co-evolution.