58 Mopern TREATMENT OF ASTER 
: Number 
Author Date Number recognized American 
Hooker, 77. Bor. Am. 1840 50 
De Candolle's Aster and Biotia 1836 155 138 
Eaton, Manual, 7th ed. 1836 94 
Torrey and Gray, Flora 1841 131 
Gray, Synoptical Flora 18 124 
Britton and Brown, ///. 77. . 1898 Northeastern U. S. 8o 
Seventy-two species in Aster and eight in allied genera are included in the last. 
Britton, Manual I9OI NE U.S. 86 
Chapman, S$». Flora 1860 S. E. U. S. 48 
Chapman, 24 ed. I SE: U, 5. 49 
Small, S. Æ. Flora 1903 S, E U & roz 
