PLANTS OP IOWA 13 



CRIBRARIA, (Pers.) Schrader. 



80. C. argillacea, Persoon. 



On rotten logs ; not uncommon. 



81. C. minutissima, Schweinitz. 

 A tiny species; rare. 



82. C. splendens, (Schrader) Pers. 

 Rare. 



83. C. dictydioides, Cke. and Half. 

 Abundant on rotten logs. 



84. C. tenetta, 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. 

 Bare. 



DICTTDIUM, (Schrad.) Rost. 



88. D. cancellatum, (Batsch) Macbr. 



Common; the first appears in June on decaying logs 

 and stumps. 



LYCOGALACEJE OBDEB. 



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. 



TEICHIACRE ORDEB. 



OPHIOTHECA, Currey. 



92. O. vermicularis, (Schw.) Macbr. 



On weathered surfaces of dead herbaceous stems and 

 roots. 



