Xyman.— Studies of Hymenomycetes. 
PLATE 26. 
Corticium subgiganteum. 
Fig. 137. In normal specimens the fructifications of Michenera artocreas 
come on the upper side of the stick, and the hymenium of Corti¬ 
cium subgiganteum on the lower side. The figure shows two 
maple sticks which at first bore no trace of Michenera cups. They 
were then turned over so as to bring the Corticium hymenium 
uppermost, and after a time fructifications of Michenera developed, 
arising directly from the Corticium hymenium. The lower stick 
gives a vertical view and the upper stick a lateral view of the 
Michenera with the Corticium running over the bases and up the 
sides of the cups. 
Peniophora Candida. 
Eig. 138. Large testtube in which is growing a pure culture of the basidio- 
spores on a willow stick. A basidiosporic hymenium has devel¬ 
oped on the stick, while Aegerita sporodochia have formed all 
over the surface of the stick and on the walls of the tube. X 
