124 MORPHOLOGY AND LIFE HISTORY 



2. What weather conditions would favor its dissemina- 

 tion? 



3. The blight caused by Albugo is difficult to eradicate. 

 What characteristic of the plant helps to explain 

 this fact? 



4. Classify the Phycomycetes you have studied as 

 either Zygomycetes (Section i), or Oomycetes (Sec- 

 tion 2), and give a reason for your classification. 

 Give the literal meaning of these two new terms. 



