TEXTBOOK OF BOTANY 



BY 



CHARLES E. ALLEN 



PROFESSOR OF BOTANY AT-THE UNIVERSITY 

 OF WISCONSIN 



AND 



EDWARD M. GILBERT 



ASSOCIATE PROFESSOR OF "BOTANY AT THE UNIVERSITY 



'OF WISCONSIN; FORMERLY PROFESSOR OF BIOLOGY AT 

 THE STATE NORMAL SCHOOL, SUPERIOR, WISCONSIN 



D. C. HEATH & CO., PUBLISHERS 



BOSTON NEW YORK CHICAGO 



