PLATE B 

 1-3. — Fusarium aridum, n. sp.; 



1. Culture 40 days old on string-bean agar. 



2. Culture 31 days old on steamed-potato plug. 



3. Culture 17 days old on steamed rice. 



4-6. — Fusarium idahoanum, n. sp.: 



4. Culture 41 days old on Irish potato agar with 10 per cent of glucose added. 



5. Culture 20 days old on steamed-potato plug. 



6. Culture 21 days old on steamed rice. 



