28 



MICROBES, FERMENTS, AND MOULDS. 



cells is larger than the other, and persists alone up to 

 the moment when the oospore is mature. It must, 

 therefore, be regarded as the female cell ; while the 



Fig. 15. Reproductive organs of Xucor mucedo (much magnified). 



other, which is smaller and soon withers away, is the 

 male cell. 



The mycelium of the oomycetes is developed in a 

 more or less liquid medium, like all other decomposing 

 and putrefying substances. The ordinary spores are 



