PLANTS OF IOWA 5 



seem to be a happy blending of Alga? and Fungi into a mutual 

 copartnership, each working for the benefit of the other. • 



I have followed Prof. T. IT. Macbride in the arrangement of 

 the Slime Moulds; Prof. F. D. Chester in Bacteria; Ellis and 

 Everhart in Pj^renomycetes ; and Britton's Mam ml in the 

 Pteridophytes and Spermaphytes. We obtained much of the 

 material for the bulletin from "Contributions to the Flora of 

 Iowa," by Dr. J. C. Arthur, published in 1876; "Bulletin of the 

 Agricultural College," by Dr. C. E. Bussey, 1884; "Proceedings 

 of the Iowa Academy of Sciences ; " " Proceedings of the Daven- 

 port Academy of Natural Sciences;" "Bulletins of the Labora- 

 tories of Natural History of the State University ; " " Reports of 

 the Iowa Geological Survey, ' ' and its ' ' Bulletin on Grasses, ' ' and 

 from the "Journal of Micology. " 



I wish to express my gratitude to the botanists of the state 

 for their pains-taking and unselfish labor in publishing the 

 names of plants they have found growing in the state, and my 

 obligation to them for material used in compiling this bulletin: 

 To Prof. T. H. Macbride for the list of Slime Moulds and Mush- 

 rooms ; to Harriet Vandivert, Alice W. Hess and Nora Allen for 

 lists of Basidiomycetes ; to F. J. Seavers for list of Dis- 

 comycetes; to Prof. B. Shimek for Liverworts; to Prof. T. E. 

 Savage for Mosses; to Prof. B. Fink and R. E. Buchanan for 

 Algae ; to H. S. Hitchcock for Peronosporere ; to Dr. Henry Albert 

 and R. E. Buchanan for Bacteria; to Prof. Bruce Fink and Kate 

 Miller for Lichens, and to Prof. L. H. Pammel for list of Grasses 

 and Fungi. For County Floras that have been used, I wish to 

 express my thanks to C. R. Ball, E. M. Olsen, M. P. Somes, -M. B. 

 Peck, H. A. Mueller, R. J. Cratty, T. J. Fitzpatrick, M. J. Fitz- 

 patrick, W. D. Barnes, Fred Rupert, A. A. Miller, J. E. Gow, 

 J. P. Anderson, C. M. King, and many others whose work has 

 been examined and checked in preparing this bulletin. 



Many changes have been made in classification of species in 

 recent years. I have not always taken kindly to sonir of these 

 changes. The names learned from Gray's and Wood's Manuals 

 more than thirty years ago still have a warm place in our 

 memory. We will probably continue to say Ampelopsis instead 

 of Parthenocissus, in speaking of the Virginia creeper, and 



