ADDITIONAL NOTES ON THE NATIVE TREES OF THE 

 LOWEK WABASH VALLEY. 



By Robert Ridgway. 



Singe the publication of my '-Notes on the Native Trees of the 

 Lower Wabash and White River Valleys in Illinois and Indiana," * and 

 the additions and corrections to the same article,t a considerable 

 amount of farther information has been f>athered, partly through my 

 own observations during occasional visits to that region, but chiefly 

 through investigations made by Dr. J. Schneck, of Mount Carmel, 

 111., who having been appointed by the State authorities to make an 

 exliibit of Illinois woods at the New Orleans Exposition, was enabled 

 to take measurements of many species which, for one reason or another, 

 I had not measured. Dr. Schneck having kindly furnished me with 

 these measurements and given me permission to publish them, they are 

 presented in the following notes, except in those cases where figures 

 already published are not affected. 



After the laj)se of so many years, it is to be expected that additions 

 are to be made to the list, that some statements are to be modified, 

 and that errors are to be corrected. These will be found under appro- 

 priate headings at tlie end of this paper. 



Before proceeding to take up the si)ecies in regular order, it may be 

 well to explain that the first number corresponds with the numeration of 

 my first paper, while the number in parentheses prefixed to the name of 

 a species corresponds in each case with that given in the octavo edition 

 of Prof. Sargent's " Catalogue of the Forest Trees of North America," 

 published in 1880, | and not with the numeration of the large quarto 

 "Report on the Forests of North America (exclusive of Mexico)," 

 published in 1884. 



* Proc. U. S. Nat. Mus., V, 1882, pp. 49-88, (1883). (Actual date of publication of 

 edition of "separates," .June 12, 1882.) 



t Additions and corrections to the list of native trees of the Lower Wabash Val- 

 ley. Botanical Gazette, viii, No. 12, Dec. 1883, pp. 345-352. 



t Sargent, Charles S. — A Catalogue of the Forest Trees of North America; Tenth 

 Census of the United States, Govt. Printing Office, Washington, 1880. 



^ Sargent, Charles S. — Report on the Forests of North America (exclusive of 

 Mexico) ; Tenth Census of the United States, ix, Govt. Printing Office, Washiugton, 

 1884. 



Proceedings of the U. S. National Museum, VoL XVII, No. 1010. 



409 



