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



purplish-blue; bracts of the involucre lanceolate, glabrate, 

 somewhat loose, with herbaceous tips. In woods and thickets. 

 August to September. Wayne and Portage. 



13. Aster novae-angliae L. New England Aster. Stout 

 leafy plants with hispid, pubescent stems, corymbosely branched 

 above. Leaves lanceolate, entire, rather thin, acute, pubescent, 

 2-5 in. long, ^-1 in. wide, clasping the stem by an auriculate or 

 broadly cordate base. Heads numerous, 1-2 in. broad, clustered 

 at the end of the branches; rays 40-50, linear, violet purple, 

 rarely pinkish, red or white; bracts of the hemispherical invo- 

 lucre linear-subulate, rather unequal, spreading, pubescent; 

 more or less glandular viscid. Pappus reddish- white. Achenes 

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



14. Aster oblongifolius Nutt. Aromatic Aster. Stem much 

 branched, hirsute-pubescent, 1-2^ ft. high. Leaves crowded, 

 oblong to oblong-lanceolate, sessile by a broad partly clasping 

 base, usually rigid, entire, acute or macronate at the apex, 

 rough on both sides, rough-margined, stem leaves 1-2 in. long 

 and \ in. or less wide; those of the branches smaller. Heads 

 1 in. broad; corymbose on the divaricate or ascending branches; 

 rays 20-30, violet purple, rarely rose-color; bracts of the hem- 

 ispherical involucre much imbricated, glandular, aromatic, 

 linear to linear-oblong, with green, acute, spreading tips. 

 Pappus light brown. Achenes hoary with gray pubescence. 

 On prairies and bluffs. August to October. No specimens. 



15. Aster puniceus L. Purple-stem Aster. Stout reddish 

 plants with hispid, rigid, hairy or glabrous stems, corymbosely 

 branched above, 3-8 ft. high. Leaves lanceolate to oblong- 

 lanceolate, acuminate, sessile, sharply serrate or entire, usually 

 rough above, pubescent on the midrib or glabrous rough above, 

 pubescent on the midrib or glabrous beneath, 3-6 in. long, 

 §-1^ in. wide. Heads usually many, 1-1§ in. broad; rays 20-40, 

 violet, purple or pale, rarely white, showy; bracts of the hemi- 

 spherical involucre linear-oblong, alternate, imbricated in 

 about 2 series, glabrous or ciliate, green, loose, spreading, nearly 

 equal, sometimes broadened. Pappus nearly white. Achenes 

 pubescent. In swamps. July to November. Rather general. 



16. Aster prenanthoides Muhl. Crooked-stem Aster. 

 Flexous much-branched plants with the stem glabrous or 

 pubescent in lines above, 1-2 ft. high. Leaves thin, oblong to 

 ovate-lanceolate or lanceolate, sharply and coarsely serrate, 



