184 IOWA ACADEMY OF SCIENCES 



also due to 0. M. Perrin for a number of interesting puff balls 

 and Prof. George F. Atkinson for several favors. Specimens 

 of all the species have been preserved in the Herbarium of 

 the Iowa State College. 



BASIDIOMYCET^. 

 NlDULARIACE^. 



Crucibulum vulgare Tul. Ames. 



Cyathus vernicosus, DC. Ames. 

 Lycoperdace^. 



Geaster saccatus Pr. Ames. (Perrin, Carver.) 



Lycoperden atropurpurem Vittad. Ames. (Perrin.) 



L. bovista L. L. giganteum Batsch. This large puff ball is 

 not- infrequent in open pastured woods in Boone and 

 Story counties. Ames. (Pammel, Bessey.) 



L, cyath'iforme Bosc. Ames. (Pammel.) 



L. favosum Rosk. Ames. (Perrin.) 



L. gemmatum Batsch, Ames. (Pammel, Carver, Brown, Hess, 

 Perrin.) 



L. pyriforme, Shaeff. Ames. (Pammel, Raymond.) 



L. tvrightii, B & C. Ames. (Pammel, Hess, Vandivert, Ray- 

 mond.) 



Secotium acuminatum Mont. Ames. (Perrin, Perrin and Otto, 

 Pammel, Raymond.) 



Bovista iilumhea Pers. Ames. (Pammel, Carver, Perrin, 

 Hess and Vandivert). 



B. pilea ,B & C. Ames. (Hess and Vandivert.) Apparently 

 not common. The species reported by Bessey. 1. c. 145. 



Mycenastrum spinulosum Pk. Ames. (Pammel, Perrin.) 

 Common some years ago. 

 Phallace^. 



Phallus impudicus L. Ames. (Pammel.) Bessey 1. c. 135 

 also reports Simblum rubescens Gerard and Phallus dupli- 

 catus Bosc. 



AGARICACE^. 



Collybia radicata Rehl. Ames (Hess and Vandivert). 



C. amabilipes Pk. Ames (Hess and Vandivert). 

 C. platyphylla Fr. Ames (Hess and Vandivert). 

 Grepidotus mollis Schaeff. Ames (Hess and Vandivert). 

 Cropinus comatus Fr. Ames, common. 



G. plixiatilis (Curt) Fr. Ames (Hess and Vandivert). 



