44 



Mycologia 



with granular protoplasm, frequently several-guttulate, 22-28.4 X 

 8-iOju. 



Habitat on living leaves of Roystonea regia Cook, Rincon, 

 Havana, Cuba. 



Estacion Experimental Agronomica, 

 Santiago de las Vegas, Cuba. 



Explanation of Plate 2 

 Phyllachora Roystoneae Johnston & Bruner 



Fig. 1. A. Perithecia in section, much enlarged. 



B. A single ascus, showing the spores in outline. 



C. Ascospores in outline, also much enlarged. 



Fig. 2. A, B, C. Different views of the stromata as seen on the host, 

 natural size and somewhat enlarged. 



