1916] Evans,— Notes on New England Hepaticae, — XIII 115 



the base of the lobule would apply equally well to P. plcUyphylloidea, 



although the tendency to bear teeth is rather more pronounced in the 

 latter species. 



The writer can add nothing of importance to the published descrip- 



Figs. 2(1-40. Porbxla platyphyi.i.oidea (Schwein.) Lindb. 

 20-30. Lobes of stem leaves, X 15. 31, 32. Lines of attachment of lobules, 31 showing 

 keel on left hand side, and 32, on right hand side, X 35. 33-35. Bracts and hracteole from a 

 single involucre, X 25. 36-38. Bracts and hracteole from another involucre, X 25. 39, 40. 

 Teeth from mouths of perianths, X 2(K). Figs 20, 27, 31, 33-35, 39 were drawn from a speci- 

 men collected on Ml. Carmel, Hamden, Connecticut, by the writer; Figs. 28-30, 32, from a 

 specimen of Madolhera Jaekii Schiffn., collected at Salem in Baden, Germany, by J. B. Jack 

 and distributed by Gottsche & Balienhorst, Hep. eur. HO; Figs. 30-38, from another specimen 

 collected at Salem in Baden, Germany, by J. B. Jack; Fig. 40, from a specimen collected at 

 Madison, New Hampshire, by H. H. Bartlett, 1250. 



