154 
Mycologia 
scription on p. 208 amphispores are not mentioned in this species, 
while Fig. 156b is an exact duplication of Fig. 22, and is labeled 
“ uredospore.” Those who are interested in the evolution of the 
group will note that the author has very decided opinions in the 
matter when he states without qualifications that Endophyllum, 
whose aeciospores germinate as soon as mature with a basidium, 
represents “ the primitive state of things from which the present 
wide division of labor into rejuvenating (aecidio-), multiplying 
(uredo-), and resting (teleuto-) spores has been evolved.” Of 
wide interest also is the observation that “ immunity depends 
chiefly (perhaps entirely) upon the ability of the cytoplasm to 
resist infections by secreting antitoxins which will kill the my- 
celium of the fungus.” 
Frank D. Kern. 
