Synopsis This book is primarily meant to provide an integrated, unifying and utilitarian perspective of the basic and applied aspects of plant nectaries. Their diversity, application in systematics and phylogency is indispensible and has wide ramifications in various related applied sciences making nectaries, nectar and honey as the most researched objects. Therefore, the book is essentially multi-disciplinary in approach and meant for students and researchers in Botany, Ecology, Plant Physiology and Entomology. It is also relevant to pollination and evolutionary biologists, agriculturists, apiculturists and melissopalynogists.