PLANTS OF IOWA 13 



Cribraria, (Pers.) Schrader. 



80. C. argillacea, Persoon. 



On rotten logs ; not uncommon. 



81. G. minutissima, Schweinitz. 

 A tiny species; rare. 



82. C. splendens, (Schrader) Pers. 

 Rare. 



83. C. dictydioides, Cke. and Balf. 

 Abundant on rotten logs. 



84. C. tenella, Schrader. 



On weathered surfaces of rotten wood. 



85. C. microcarpa, (Schrad.) Persoon. 

 On rotten wood. 



86. C. elegans, Berk, and Curt. 

 Found on rotten coniferous wood. 



87. C. cuprea, Morgan. 

 Rare. 



Dictydium, (Schrad.) Rost. 



88. D. cancellation, (Batsch) Macbr. 



Common; the first appears in June on decaying logs 

 and stumps. 



LYCOGALACEiE ORDER. 



Lycogala, Micheli. 



89. L. epidendrum, (Burb.) Fries. 



The most common of all slime-moulds; found on decay- 

 ing wood of all sorts. 



90. L. flavo-fuscum, (Ehr.) Rost. 



Sometimes mistaken for a puff-ball; not common. 



91. L. exiguum, Morg. 



On decaying wood; in groups of a dozen or more 



TRICHIACE^E ORDER. 



Ophiotheca, Currey. 



92. 0. vermictdaris, (Schw.) Macbr. 



On weathered surfaces of dead herbaceous sterna and 

 roots. 



