AN 
ILLUSTRATED FLORA 
OF THE 
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 102p MERIDIAN 
BY 
NATHANIEL LORD BRITTON, Px.D., Sc.D., LL.D. 
DIRECTOR-IN-CHIEF OF THE NEW YORK BOTANICAL GARDEN; PROFESSOR IN COLUMBIA UNIVERSITY 
AND 
HON. ADDISON BROWN, A.B., LL.D. 
PRESIDENT OF THE NEW YORK BOTANICAL GARDEN 
THE DESCRIPTIVE TEXT 
CHIEFLY PREPARED BY PROFESSOR BRITTON, WITH THE ASSISTANCE OF SPECIALISTS IN 
SEVERAL GROUPS; THE FIGURES ALSO DRAWN UNDER HIS SUPERVISION 
SECOND EDITION—REVISED AND ENLARGED 
IN THREE VOLUMES 
Vor. IIL. 
GENTIANACEAE TO COMPOSITAE 
GENTIAN TO THISTLE 
NEW YORK 
CHARLES SCRIBNER’S SONS 
1913 
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