An Introduction to Basidiomycotina, this book help the graduate and post-graduate students of plant pathology to quickly grasp the facts comprehensively. It is a collection and compilation work from various sources. In this book we have follow the classification of fungi proposed by Ainsworth G. C. (1973). The fungi included in the sub-division Basidiomycotina are mushrooms, boletes, toad stools, puffballs, geasters, stinkhorns, rust, smut, bracket or shelf fungi, bird`s nest fungi, fairy clubs, earth-stars and the jelly fungi.