ERRATA. 
Page 2, line 15, Northolaena read Notholaena. 
Page 55> Ageliops, read Aegilops. 
Page 120, lines 5, 7, 10, 13, “ Swaeda,” read “Suaeda.” 
Page 131, line 18 “ Callian,” read “ Calhan.” 
Page 150, lines 19 and 20 go out, and the numbers for Roripa , Turritis, 
Schoenocrambe and Sisymbrium become 9, 10, 11, and 12 re¬ 
spectively. 
Page 155-167, the numbers of Roripa and the following genera of Brassi- 
caceae should be changed to agree with the numbers in the key. 
Page 171, Pectianthia, read Pectiantia. 
Page 189, line 21, “ Mountain Holly,” read “ Mountain Mahogany.” 
Page 190, The numbers in the key to Rosa should be changed to agree with 
those in the list following. 
Page 192, The first five localities under Amelanchier alnifolia belong to A. 
oreophila instead. 
Page 201, Trifolium pratensis read Trifolium pratense. 
Page 202, line 30 “ Bird’s-foot Treefoil” read Bird’s-foot Trefoil. 
Page 208, Numbers in the key of Kentrophyta should be changed to cor¬ 
respond with those of the following list. 
Page 216, The number of Vida should be 35 instead of 33 and on 
Page 217, that of Lathyrus 36 instead of 34. 
448 
