EXPLANATION OF PLATE ILL 



Appendicular a entomophila, Peck. 



Fig. i. Leg of a fly bearing the fungus, magnified. 



Fig. 2. A perithecium and its appendages more highly magnified. 



Fig. 3. Tip of the perithecial rostrum with spores escaping from its 



apex, x 400. 

 Fig. 4. Three spores, x 400. 



Sph^erographium hystricinum, Sacc. 



Fig. 5. Piece of bark bearing the fungus. 



Fig. 6. A perithecium with spores escaping from its apex, magnified. 



Fig. 7. Four spores, x 400. 



Ascochyta Cassandra, Peel: 



Fig. 8. A leaf spotted by the fungus. 



Fig. 9. A perithecium and its matrix, magnified. 



Fig. 10. Five spores, x 400. 



Venturia Cassandr/e, Peck. 



Fig. 11. A leaf spotted by the fungus. 



Fig. 12. Two perithecia, magnified. 



Fig. 13. An ascus containing spores, x 400. 



Fig. 14. Four spores, x 400. 



