DESCRIPTION OF PLATE II. 



Mycelium of Exuuscus deformans (600/1) . Figs. 1 and 2, noiiual vegetative liyphse, 

 as found in the leaf parenehynia, showing eharacteristic sei)tati()n, modes of branch- 

 ing, etc. ; figs. 3, 4, and 5, usual type of distril>utive hyphie founil in swollen branches 

 in the cortical parenchyma and medulla; figs. 6, 7, 8, and 9, fruiting hyphse, show- 

 ing successive stages in the development of ascogenous cells from the subcuticular 

 mycelium (6) to the half-formed ascogenous cells (9). (See PI. Ill for further stages 

 in the development of the ascogenous cells and asci.) 



