POLYMORPHISM. 189 
of spores, which are so much the older, the farther they stand 
from the sterigma. The number of the links in a chain of spores 
reaches in normal specimens to ten or more. All sterigmata 
spring up at the same time, and keep pace with one another 
in the formation of the spores. Every spore grows for a time, 
according to its construction, and at last separates itself from 
ch) Le 
dd. 
Tic. 102.—a, Aspergillus glauevs; b. conidia; c. germinating conidium; d. con- 
ceptacle of Eurotiuim, e¢. ascus. 
its neighbours. The mass of dismembered spores forms that 
fine glaucous hue which is mentioned above. The spores, there- 
fore, are articulated in rows, one after the other, from the ends 
of the sterigmata. The ripe spore, or conidium, isa cell of a 
round or broadly oval form, filled with a colourless protoplasm, 
