446 DESCRIPTION OF FLATES. 



size ; b, four receptacles magnified; c, sections of the same; d f an'ascus 

 with paraphyses ; e, two sporidia. d and e x 400 times. 



Fig. 78. — a, Stegia Ilicis, on a portion of a holly-leaf, nat. size ; b, a 

 receptacle magnified, showing the upper half of the perithecium splitting 

 and becoming detached and exposing the hymenium ; c, an ascus ; 

 d, five sporidia. c and d x 400 times. 



Fig. 79. — a, Ascomyces PotentiUce, on a portion of a branch of the 

 host plant, which it has much enlarged ; b, b, a portion of the cellular 

 tissue of the host plant, showing the mycelium of the Ascomyces 

 ramifying between the cells of the epidermis and throwing up asci 

 Cj c, through the cuticle; /, sporidia. 6, &, c, c, and/ x 400 times. 



