SUGGESTED REFERENCES 



Deam. Charles C. Flora of Indiana. Department of Conservation, Indian- 

 apolis, Indiana. 1940. 



ElFERT, Virginia S. Floicers That Bloom in the 8pring. Illinois State Museum, 

 Springfield. 1951. 



Fernald, M. L. Gray's Manual of Botany. American Book Co., New York. 

 Eighth Edition, 1950. 



HAUSMA^^ Ethel H. Thr Illustrated Encyclopedia of American Wild Floicers. 

 Garden City Publishing Co., Inc., Garden City, N. Y. 1947. 



House, Homer D. Wild Floicers. Macmillan Co., New York. 1934. 



Illinois Natural History Survey. Manual 1. Field Book of Illinois Wild 

 Floicers. Urbana, 111. 1938. 



Jones, G. NE\^LLE. Flora of Iirniois. University of Notre Dame Press, Notre 

 Dame, Indiana. Second Edition, 1950. 



Jones, G. Neville and Fuller, George D. Vascular Plants of Illinois. Illinois 

 Stat© Museum, Springfield. 1955. 



Matthews, F. S. Field Book of American Trees and Shrubs. G. P. Putnam's 

 Sons, New York. 1915. 



Field Book of American Wild Flowers. G. P. Putnam's Sons, New 



York. 1927. 



MoHLENHRocK. R. H. ANI1 VoiGT. J. W. A Flora of Sotithern Illinois. Southern 

 Illinois University, Carbondale, 111., 1959. 



Moldenke, Harold N. American Wild Flowers. D. Van Nostrand Co., Inc., 

 New York. 1949. 



Pepoon, H. S. An Annotated Flora of the Chicago Region. Chicago Academy 

 of Sciences, Chicago. 1927. 



Rydberg, p. a. Flora of the Prairies and Plains of Central North America. 

 New York Botanical Garden, New York. 1932. 



Steyermark, J. A. Spring Flora of Missouri. Missouri Botanical Garden, St. 

 Louis. 1940. 



Tehon, Leo R. Field Book of Native Illinois Shrubs. Manual 3. Illinois 

 Natural History Sui'vey, Urbana, 111. 1942. 



Wherry, Edgar T. Wild Flower Guide. Doubleday and Co., Inc., Garden City, 

 N. Y. 1948. 



237 



