PLANTS OF IOWA 



216. M. syzygites, D. Bg. 



On decaying toad-stools. 



217. M, racemosus, Fres. 



On decaying plums and fermenting liquor. 



218. M. mucedo. 



Common on decaying vegetable matter. 

 Pilobolus. 



219. P. cnjstallinus, Tode. 



Common on horse dung in mid-summer. 

 Rhizopus. 



220. R, nigricans. 



Common mould on bread. 



EUTOMOPHTHOREA family, insect fungi. 

 Empusa. 



221. E. muscea, Fres. 

 Common on flies in autumn. 



EUTOMPHOTHORA. 



222. E. radicaus. 



On cabbage butterfly. 



223. E. calopteus, Bessey. 



On Rocky Mountain locust. 



SAFRQLEGNIACEiE FAMILY. WATER MOULDS. 



Saprolegnia, Nees (Esenb.) 



224. S. ferix, (Gruith) Thuret. 



On Alga3 and dead fish. 

 Achlya, Nees ab Esenb. 



225. A. americana, Sp re. (A. prolcfera.) 

 On dead insects in water. 



Leptomitus, Agardth. 



226. L. lacteus, (Roth) Ag. 



On decaying animal and vegetable matter in water. 



FERONOSPORE^I FAMILY. DOWNY MILDEWS. 



Phytophthora. 



227. P. infcstans, DeBy 



The "potato rot." Destructive in wet seasons. 



