GNOMONIACEAE 



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Fig. 87. Initiation of perithecia in Endothia parasitica. (From Anderson 

 and Rankin.) A, B, and C. Coiled ascogonia, invested with loosely ar- 

 ranged fungous tissue that makes up the central portion of the primordium. 

 Many primordia occur within each stroma. D, E, and F. Densely staining 

 multinucleate cells composing the basal portion of the ascogonia. G. Multi- 

 cellular, multinuclear ascogonium, viewed laterally, the upper portion being 

 a part of the slender trichogyne. H. Stroma with ascogonium at center, 

 viewed from above. /, /, and K. Degeneration of ascogonial base and trich- 

 ogyne with no evidence of formation of ascogenous hvphae. L. Young 

 perithecium, a complex of fungus cells all quite alike. 



