6 MICHIGAN ACADEMY OF SCIENCE. 



Gray's Mo/nual, the latter are also inserted in the text. The species of 

 each genus are arranged in alphabetical order. To economize space a 

 considerable number of sections of the Flora last prepared have been 

 omitted or much abbreviated. 



In the preparation of this Flora thanks are due to Professor C. F. 

 Wheeler, O. A. Farwell, Prof. C. A. Davis, C. K. Dodge, C. D. McLouth, 

 G. M. Bradford, J. B. Dandeno. 



W. J. BEAL. 



Agricultural College, Mich., Dec. 1, 1904. 



