VOLUME 7 PART 7 
NORTH AMERICAN FLORA 
(UREDINALES) 
AECIDIACEAE (continuatio) 
JOSEPH CHARLES ARTHUR 
BULLARIA 
JOSEPH CHARLES ARTHUR AND EDWIN BUTTERWORTH MAINS 
TELEUTOSPORA 
JosEPH CHARLES ARTHUR AND Guy RICHARD BISBY 
MICROPUCCINIA (pars) 
JosEPH CHARLES ARTHUR AND HERBERT SPENCER JACKSON 
PUBLISHED BY 
THE NEW YORK BOTANICAL GARDEN 
DECEMBER 11, 1922 
