The purpose of this work is to assemble descriptions and illustrations of Septobasidium, a genus that is practically world wide in distribution. It is very abundant in certain localities, and occurs on a great variety of wild and cultivated woody plants, such as citrus, apple, tea, and rubber, sometimes causing much damage. The present work includes detailed descriptions with photographs and drawings. Originally published in 1938. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.