Science 



Q 



11 



. C9 



21:3 



TRANSACTIONS OF THE 



NNECTICDT ACADEMY OF ARTS AND SCIENCES 



Incorporated a. D. 1799 



VOLUME 21, PAGES 201-313 



MARCH, 1917 



The American Species 



of 



Marchantia 



BY 



ALEXANDER W. EVANS 



NEW HAVEN, CONNECTICUT 

 1917 



