LIST OF EREATA. 



In indicating the liumljer uf linea, I do not count the heading of the pages. 

 \ 

 Page 25, line 7 from top, read "Oairea " for " Ostreo ". 

 Page 41, line 5 from bottom, read " 245 " for " 244 ". 

 Page 42, line 7 from top, read " 373 " for " 273 ". 

 Page 47, line 12 from top, erase " stem ", which is repeated. 

 Page 47, line 10 from bottom, read " laciniw" for ''^lodncei". 

 Page 53, Hue 9 from bottom, add " Ung. in" before " Hear". 

 Page C7, line 13 from bottom, read " cellular " for " medullar " 

 Page 74, line 15 from bottom, read " fig. 2 " for " fig. 6 ". 

 Page 86, line 8 from top, read "103 " for " 113 ". 

 Page 93, line 16 from top, add " c" after " fig. 45". 

 Page 115, line 13 from bottom, read " Plate IX" for " IV ". 

 Page 118, line 14 from bottom, read " Plate XXXVIII " for "XVIII ". 

 Page 124, line 15 from bottom, read " brachidodrome " for " bracbiodrome ". 



Page 133, line 17 from bottom, the quotation "Lesqx.", etc., goes above, after "p. 545. ilyrka Ludidgn". 

 Page 134, line 9 from bottom, read "412" for " 413 ". 

 Page 139, line 16 from top, read " 29 " for " 30 ". 

 Page 151, line 14 from top, read " 376 " for " 373 ". 

 Page 167, line 3 from top, add " PI. XIX " after " p. 25 ". 

 Page 171, line 15 from bottom, insert a comma in place of " that ". 

 Page 178, line 12 from bottom, read " fig. 14 " for " 15 a ". 

 Page 183, line 17 from top, read " Oeynliausiana " for "CEningliausiana". 

 Page 184, line 19 from top, read " Oeijnhausiana" for " (Eiiinghausiana". 

 Page 203, line 17 from bottom, add " II " after " PaUieout". 

 Page 216, line 13 from top, read " Plate XXXVI" for " XXVI ". 

 Page 216, line 3 from bottom, read " eamptodrome " for " bracbiodrome ". 

 Page 219, line 7 from bottom, read " 1873 " for " 1874 ". 

 Page 220, line 8 from bottom, read "85 " for " 35 ". 

 Page 220, line 7 from bottom, read " 29 " for " 294 ". 

 Page 234, line 19 from bottom, read " shallow " for " hollow ". 

 Page 277, line 4 from top, add " from " after " dentate ". 

 Page 284, line 4 fronl top, read " whose " for "its ". 

 Page 286, line 9 from top, erase " Supplement, p. 8 ". 

 Page 298, line 9 from bottom, read " PI. LXllI, fig. 8 " for " fig. 5 ". 

 Page 318, line 4 from top, read " Erlocaulon " for " Eriocolon ". 



