MILDEWS AND RELATED FUNGI 



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Fig. 57. — A, Balansia claviceps on ear of Paspalum; B-L, Claviceps purpurea; 

 B, sclerotium; C, sclerotium with Sphacelia; D, cross-section of sphacelial layer; E, 

 sprouting sclerotium; F, head of stroma from sclerotium; G, section of same; H, 

 section of perithecium; J, ascus; K, germinating ascosnore: ^. conidiosnores pro- 

 duced on mycelium. (See Die nalurlichen Pflanzenfamilien I. i, p. 371.) 



