Dec, 1917] The Asterece of Ohio 53 



and branchlets, usually numerous; rays 15-20, blue to pale 

 violet or white; bracts of the broadly campanulate involucre 

 linear subulate, obtuse or acutish, appressed, green-tipped 

 imbricated in about 4 series. Pappus white. Achenes pub- 

 escent. Sandy soil. August-October. Eric County. 



24. Aster salicifolius Lam. Willow Aster. A rather slender 

 paniculately much branched, leafy plant, 2-5 ft. high, glabrous, 

 roughish or pubescent above. Leaves firm, lanceolate to linear- 

 lanceolate, roughish or rough margined, acute at the apex, 

 sessile or slightly clasping at the base, entire or sparingly 

 dentate, glabrous or nearly so. 2-4 in. long, \-\ in. wide, the 

 lower sometimes petioled ; those of the branches smaller. Heads 

 numerous; rays numerous, violet, violet purple or sometimes 

 white; bracts of the involucre linear-oblong, appressed, imbri- 

 cated in 4-5 series, with acute or obtusish tips. Pappus white. 

 Achenes pubescent. In moist soil. August-October. Wayne 

 County. 



25. Aster paniculatus Lam. Panicled Aster. A pan- 

 iculately much branched plant with a glabrous or sometimes 

 pubescent stem, 2-8 ft. high. Leaves lanceolate to linear- 

 lanceolate, acuminate at the apex narrowed to a sessile or 

 slightly clasping base, glabrous, roughish-margined; those of 

 the stem slightly serrate or entire, 3-6 in. long, \-\ in. wide; 

 the upper branch leaves gradually smaller. Heads numerous; 

 rays numerous, white or faintly tinged w4th violet; bracts of 

 the involucre linear-lanceolate, acuminate, appressed, green- 

 tipped and imbricated in 4-5 series. Achenes minutely pubes- 

 cent. In moist soil. August to October. General. 



26. Aster tradescanti L. Tradescant's Aster. Stems slender, 

 paniculately branched, 2-5 ft. high; the branches often pubescent 

 in lines. Stem leaves linear-lanceolate to lanceolate, acuminate 

 at the apex, narrowed to a sessile base, 3-6 in. long, \-\ in. 

 wide, glabrous or nearly so on both sides, sharply serrate at 

 the middle, or entire. Heads numerous and racemose on the 

 branches; rays numerous, white or nearly so; bracts of the 

 hemispherical involucre linear, acute, appressed, green-tipped, 

 imbricated in 4-5 series. Pappus w^hite. Achenes minutely 

 pubescent. In fields and swamps. August to October. Rather 

 general. 



27. Aster faxoni Porter. Faxon's Aster. A rather stout 

 glabrous plant, paniculately or corymbosely branched, ^-5 ft. 



