ECOLOGICAL CROSS SECTION OF THE MISSISSIPPI. 211 



those of Craig,* but on a larger scale and in every part of the 

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FLOWERING OF FAMILIES, BY MONTHS. 



on a uniform standard, and, where not already provided for, 



* Craig, M. A Catalogue of the uncultivated Flowering Plants growing 

 on the Ohio State University Grounds. Ohio Agric. Exp. Sta. Bull. tech. 

 sor. r :49. 1890. 



L 



