EEK AT A . 



Page 17, line 11 (from bottom), for 15 read -.1.5. 



Page 20, line 15 (from top), for tribola read triloba. 



Page 20, line 16 (from top), for June 17 read June 7. 



Page 22, line 9 (from bottom), for 27.560 read 29.560. 



Page 25, table, April, column 6, for 11 read 12. 



Page 25, table, June, column 9, for 315 read 316. 



Page 25, table, August, column 5, for 4 read 3. 



Page 25, table, October, column 3, for 35 read 36. 



Page 27, table 8, line 17, for fall read year. 



Page 35, line 21, for Sagifraga read Saxifraga. 



Page 36, line 17, for Saggittaria read Sagittaria. 



Page 38, line 12 (from bottom), for Ipomoce read Ipomoea. 



Page 40, line 24, for Condolle read Candolle. 



Page 43, line 18, after VIII., insert 5. 



Page 43, line 22, for All. read Atl. 



Page 51, line 30, for Eschinacea read Echinacea. 



Page 54, line 5, for S read 5. 



Page 70, last line, for Orhiglossum read Ophioglossum. 



