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ERRATA 
5—In line 7 for “seems’’ read “seemed.” 
11—In line 6 for “Paralellism’”’ read ‘‘Parallelism.”’ 
11—In line 13 for “‘Equisetaes” read ‘‘Equisetales.”’ 
11—In line 7 from bottom for ‘“‘Bethulaceae read ‘‘Betulaceae.”’ 
14—In line 21 from bottom for “Budbeckia” read “Rudbeckia.” 
17—In line 9 from bottom for ‘‘casual’”’ read ‘‘causal.’ 
29—In line 16 from bottom for “floral’’ read “flora.” 
39—In line 3 from top for “rententive”’ read ‘retentive.’ 
43—Im line 2 from the bottom for “are” read “as”, 
44—In line 1 “otheca Lamarckii’’ should be transferred to the end ¢f line 
2 from the bottom of page 43. 
53—In line 22 from the top for ‘‘Zygademus” read “Zygadenus.” 
53—In line 3 from bottom for “Quercus gertinata”’ read ‘“‘Quercus gem- 
inata.” 
55—In line 7 from top for “Sensuvium” read “‘Sesuvium.”’ 
55—In line 11 from bottom for “Paralallism’’ read ‘‘Parallelism.” 
60—Omit line 13 form the top. 
60—In line 14 for ‘‘Loss” read ‘Loess.” 
60—TIn line 14 above ‘Loess bluffs’ insert “Pteris serrulata L.”’ 
72—In line 2 from bottom for “taedum”’ read “tardum.” 
76—In line 1 for “‘liliiferum”’ read ciliiferum.”’ 
88—In line 4 for “uncea’’ read “juncea.” 
90—In lime 6 from bottom for “Etonia’”’ read “Eatonia.”’ 
96—In line 5 from bottom for “Serax” read “‘ferox.” 
96—In line 4 from bottom for ‘“Operus’”’ read “‘Cyperus.” 
121—In line 13 from top for ‘jhexigona” read “hexagona.”’ 
127—Im line 6 from top for ‘‘Carya” read ‘“Hicoria.”’ 
141—In line 13 from bottom for “annus” read “annuus.” 
169—In line 3 from top for ‘“Melilotus’’ read “Trifolium.” 
176—In line 7 from bottom for “Apois apois”’ read ‘‘Apios apios.” 
180—In line 5 from bottom for “teretris’’ read “terrestris.” 
222—-In line 10 from top insert above “Diospyros L.” the following: 
“Ebenaceae. Ebony Family.” 
257—In line 5 from top for ‘‘“Houstonia rotundifolia Michx.” read “Hous- 
tonia purp rea L.”’ 
