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.