THALLOPHYTES: FUNGI 



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FtG. 44. Head of rye attacked by " er- 

 got" (a), peculiar grain-like masses 

 replacing the grains of rye ; also a 

 mass of "ergot" germinating to 

 form spores (&>. — After Tulasxe. 



Fig. 46. A cup-fungus (Pitya\ grow- 

 ing on a spruce (Picta).— After 

 Rehx. 



In some of these forms the ascocarp is completely closed, 

 as in the lilac mildew : in others it is flask-shaped ; in 

 others, as in the cup-fungi, it is like a cup or disk ; but in 

 all the spores are inclosed by a delicate sac, the ascus. 

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