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 



FIG. 102. a. Aspergillus glaucvs ; b. couidia ; c. germinating conidium ; d. con- 

 ceptaclc of Eurotium ; 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, is a cell of a 

 round or broadly oval form, filled svith a colourless protoplasm, 



