ASTER ARENICOLA 139 
more numerous and closer; bracts narrow, often without green 
tips, more uniform throughout a head; heads fewer, smaller, 
closer, on more ascending pedicels; rays more numerous, about 
II; maximum-sized plants, 117 ft. high, increase the tendency of 
the species to narrowness of bracts, the principal ones becoming 
more attenuated. Their small close and even teeth have a projec- 
tion mostly of about qù in. instead of ;°,. Perhaps the pappus 
Aster arenicola C 
Fr IL 
reddens more slowly also; being still whitish tawny in plants four 
years in the herbarium, slight salmon-colored only, in plants of 
15 years, full red only in an Albany specimen of about 60 years. 
Somewhat resembles A. divaricatus deltoideus ; differs as fol- 
lows: smaller in all parts ; teeth not remote ; leaves not dark but 
light green ; heads not large; leaf-bases not so truncate but bi- 
curved; sinus narrower, more pointed inward. 
Varies toward A. argz//arius; differs in its much larger leaves, 
diminished upwards and more acuminate, its narrower bracts with 
chanfer-obtuse tip, its shallower inflorescence, etc. 
