Led 
and some other Grasses. | 473 
Fig. 6. Shows the membrane of one of the sporidia, laid open, increased in size, 
and developing granules on various points of its surface. 
7. Shows the manner in which the sporidia become divided by a septum 
or septa, by the granules extending themselves transversely; differ- 
ent stages being observed in the first and succeeding ones. 
8 & 9. More advanced states of growth. 
10. The fungus, assuming a radiating form, and developing sporidia upon 
its branches. 
11. Granules from the interior of the sporidia, arranged singly, or in twos 
or threes. All the preceding figures magnified seven hundred times. 
12. The Acarus, which lives on the interior of the ergot, magnified fifty 
times. 
39? 
