CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 278 



A REPORT ON STERILITY 

 IN IRISES 



BY 



LOUISE A. COVER, MARJORIE R. SWABEY 

 and A. B. STOUT 



NEW YORK 



1926 



Reprinted, without change of paging, from Bulletin of the American Iris 

 Society, No. i6, forjuly, 1925 (issued January, 1926) 



