48 The Ohio Journal of Science [Vol. XVIII, No. 2, 



upper smaller, ovate-lanceolate, sessile or on short petioles. 

 Heads numerous, small; rays 10-20, bracts of the turbinate 

 or cylindrical involucre linear, obtuse, green-tipped, appressed. 

 Woods and thickets. September-December. Rather general. 



6. Aster lowrieanus Port. Lowrie's Aster. Glabrous 

 branched plants 1-4 ft. high. Leaves thickish, firm, often 

 greasy to the touch; the basal ones on slender petioles, ovate to 

 ovate-lanceolate, mostly cordate, acute or obtusish, serrate or 

 increased, 2-6 in. long; stem leaves ovate to oblong, often 

 cordate, on winged petioles; the uppermost lanceolate. Heads 

 rather few, loosely panicled; ray flowers light blue; bracts of 

 the turbinate involucre obtuse, appressed. In woods. Sep- 

 tember to October. Lake, Cuyahoga, Auglaize, Fairfield, 

 Hamilton. 



7. Aster lindleyanus T. & G. Lindley's Aster. Glabrous 

 or sometimes pubescent plants, usually stout, 1-6 ft. high and 

 branched above. Leaves rather thick, glabrous or slightly 

 pubescent on the lower veins; basal ones acute or acuminate to 

 the apex, cordate at the base, sharply serrate, ovate, on slender 

 naked petioles; upper leaves ovate to ovate-lanceolate, serrate 

 or entire, sessile or with margined petioles; inflorescence leaves 

 smaller, linear-lanceolate. Heads often few; rays 10-20, blue 

 or violet; bracts of the broadly turbinate or hemispherical 

 involucre lanceolate, acute, rather loosely imbricated, glabrous 

 or nearly so, with green tips. Pappus white. In open places. 

 August to October. Wayne, Franklin. 



8. Aster drummondii Lindl. Drummond's Aster. A stout 

 finely and densely canescent plant, branched above and 2-5 ft. 

 high. Leaves thin, ovate, acuminate, rough above and cane- 

 scent below; the lower and basal ones cordate, on slender 

 naked petioles, sharply toothed, 2-4 in. long; the upper cordate 

 or rounded at the base, usually on margined petioles; those 

 of the inflorescence smaller, sessile, entire or nearly so. Heads 

 on racemose branches; rays 8-15, blue; bracts of the turbinate 

 involucre linear, slightly pubescent, acute to acuminate, with 

 green appressed tips. Pappus whitish. In dry soil, borders of 

 woods and on prairies. September to October. Madison 

 County. 



9. Aster sagittifolius Willd. Arrowleaf Aster. Stout or 

 slender herbs, glabrous or slightly pubescent above, 2-5 ft. high, 

 with a paniculate inflorescence of ascending branches. Leaves 



