THALLOPHYTES, 



MYXOMYCETES. SLIME MOULDS. 



PHYTOMYXINE. 



Plasmodiphora, Woronin. 



1. P. brassica, Wornin. 



On cabbage, causing the disease known as " Club-root. " 



EXOSPORE.E. 



Ceratiomyxa, Scliroeter. 



2. C. fruticulosa (Muell.) Macbr. 



On shaded rotten logs in summer; rare. 



3. C. poroides (Alb. and Schw.) Schroeter. 

 On decaying sticks in wet places; common. 



MYXQGASTRES. 

 PKYSARACEiE ORDER. 



Fuligo, (Haller) Pers. 



4. F. ovata, (Schaeff.) Macbr. 



In summer the yellow Plasmodium may be found stream- 

 ing over rotten straw or other refuse ; common. 



5. F. violacea, Persoon. 



Often mistaken for ovata; frequent. 

 Physarum, (Persoon) Host. 



6. P. ellipsosporum, Rost. 



Found occasionally in shaded situations on rotting 

 straw; not common. 



7. P. sinuosum, (Bulliard) Weinm. 



Sometimes found on the upper side of leaves close to 

 the ground. 



8. P. serpula, Morg. 

 Not rare. 



