1916] Evans, — Notes on New England Hepaticae, — XIII 113 



eastern North America the writer has had abundant material for 

 study. The North American specimens have been carefully com- 

 pared with European material. A few slight deviations from the 



Figs. 14-25. PoRELLA PL.^TYPHTLLoiDEA (Schweiii) LJndb. 

 14. Branch bearing a male intlorescence and two sterile branches, ventral view. 15. A leaf, 

 dorsal view. 16-21. Leaves, ventral view. 22. A leaf at the base of a branch. 23-25. 

 Underleaves. All magnified about 14 times. The figures are a reproduction of those by 

 Gottsche, distributed with Gottsche and Rabenhorst's Hepaticae europaeae 372. They were 

 drawn from an authentic North American specimen of Jungerniannia plalyphylloidea Schwein. 

 in the Lindenberg herbarium. 



