Figure 16. A) Pythium aphanidermatum hyphae with a noticeable lack of septations. B) Right angled branching (highlighted with arrows) of Rhizoctonia solani hyphae. Note the right angled branching and presence of the septum close to the branch origin. C) Sclerotinia homoeocarpa hyphae. Note the presence of a septum. (Courtesy of T.W. Allen) BACK