PLATE XXXIV 



Fig. I. — A, Neopeckia couUeri, ascus with mature spores; B, Herpotrichia nigra, 

 ascus with mature spores; C, Herpotrichia quinqueseptata, ascus with mature spores. 

 Fig, 2. — Branch of Picea engelmanni infected with Herpotrichia quinqueseptata. 



(254) 



