ROCHESTER ACADEMY OF SCIENCE. 



| Oct. 8, 



COMPARA TIVE ST A TIS7 ICS. 



To Professor William R. Dudley's Catalogue of "The Cayuga 

 Flora," published in 1886, we are indebted, in part, for the figures in 

 the three following tables: 



Plants of Monroe County, etc 1314 



The Cayuga Flora 1278 



Plants of Buffalo, etc. (with addenda) 1 243 



Plants of Oneida County, etc 1390 



Plants of Dutchess County T067 



Plants of Suffolk County. 852 



Flora of Washington, D. C, etc. . _ 1 2 1 1 



Flora of Essex County . . . . 1257 



Flora of Vicinity of Yale College. 1238 



It should, perhaps, be said in explanation, that "Plants of Oneida 

 County and Vicinity," by John E. Paine, Jr , 1864, in reality covered 

 nearly the whole State, excepting the south-eastern and the Adiron- 

 dack regions; and that the "Plants of Buffalo and Vicinity," by the 

 Buffalo Society of Natural History, 1883, includes plants within a 

 radius of fifty miles of Buffalo. 



The following is a comparison of the larger orders : 



Order. 



Cyperaceae 



Composite 



Gramineoe 



Rosacea; 



Leguminosa2 . . 

 Ranunculaceae 



Orchidaceae 



Ericaceae 



Crucifera: 



Labiatae 







No. Species and Varieties. 





co 



D 

 W 



0) 







u 



C 

 O 



03 



U 



6 



m 



'53 

 a 



O 



en 



G 



CD 



co 



357 



143 



151 



115 



187 



138 



79 



497 



I40 



125 



151 



141 



IO9 



119 



297 



107 



107 



95 



no 



92 





T04 



62 



69 



55 



62 



48 



35 



208 



55 



45 



47 



54 



34 



41 



80 



33 



36 



39 



36 



27 



17 



7i 



4i 



35 



35 



42 



30 



15 



89 



30 



35 



29 



29 



33 



28 



7° 



33 



34 



37 



32 



27 



32 



121 



39 



33 



43 



40 



27 



3i 



108 

 149 



IIO 



46 



57 

 27 

 24 

 26 



34 



42 



The above estimates for the eastern United States (E. U. S.) are 

 taken from Lester F. Ward's "Flora of Washington." 



The following table gives a comparison of two of the larger 

 genera, two of the representative Atlantic coast genera and a repre- 



