AN 



ILLUSTRATED FLORA 



NORTHERN UNITED STATES, CANADA 



AND THE 



BRITISH POSSESSIONS 



FROM NEWFOUNDLAND TO THE PARALLEL OF THE SOUTHERN BOUNDARY OF VIRGINIA, 

 AND FROM THE ATLANTIC OCEAN WESTWARD TO THE IO2D MERIDIAN 



BY 



NATHANIEL LORD BRITTON, PH. D. 



Hi 



EMERITUS PROFESSOR OF BOTANY IN COLUMBIA UNIVERSITY, AND DIRECTOR-IN-L'IIII i 



OF THE NEW YORK BOTANICAL GARJM N 



AM) 



HON. ADDISON BROWN 



PRESIDENT OF THE TORREY BOTANICAL CLUB 



THE DESCRIPTIVE TEXT 



L'llll FLY PREPARED IJY 1'KolKsSOK BRITTON, WITH Till-: ASSISTANCE OK SpKl 1 Al.ISTS IN 

 SEVERAL GROUPS; THK Flt.lKKS ALSO DRAWN UNDER HIS SUPERVISION 



IN THREE VOLUMES 



VOL. II 



PORTULACACEAE TO MENYANTHACEAE 

 PORTULACA TO BUCKBEAN 



NEW YORK 



CHARLES SCRIBNER'S SONS 

 1897 



