(SO ILLINOIS BIOLOGICAL MONOGRAPHS [226 



PLATE XII 



Fig. 90. Amerodolhis guianensis. Photograph of a leaf spot from above, enlarged showing 



stromata on the veins. 



Figs. 91-92 Achorella guianensis. 

 Fig. 91. Photograph of a leaf shovting numerous groups of perithecia. .Actual length of leaf 



as shown 21 cm. 

 Fig. 92. Photograph of groups of perithecia on a stroma. 



