ERRATA. 
Numbers 64, 114, 149, 169, 170, 171, 242, 265, 280, 292, 322, 
527, 401, 411, 495, 496, 723, 725, should be in italics, as intro- 
luced species. 
Under 25, for liocarpus read leiocarpus. 
Under 69, for Aorritum read Aconitum. 
Under 92, put 93 tuberosa, Paine. 
Under 422, for macropylla read macrophylla. 
Under 1001, for discoides read discoidea. 
Under 1383, for Capitatum read capitatum. 
Under 1936, for Pith read Koch. 
Under 2047, for prairea read prairiea. 
Under 2072, for Stenophylla read stenophylla. 
Under 2196, for occidentalis, Hook, read duriuscula, L. 
Page 7, 2nd column, for Barbarae read Barbarea, 
Page 34, 1st column, for Epipacti read Epipactis. 
Under 2859, for cornnivens read connivans, Page 48. 
Page 48, 1st column, for Riceia read Riccia. 
