COMPOSITAE. 955 



about 8 mm. high, its bracts linear-lanceolate with acuminate green bracts. S. 

 Dak. and Iowa. Type from Roberts Co.. S. Dak. (De Alton Saunders, No. 8067.) 



25. Aster undulatus L. WAVY-LEAF ASTER. SMALL FLEABANE. VARIOUS. 

 LEAVED ASTER. (I. F. f. 3757.) Stem stiff, very rough and pubescent, divaricately 

 branched above, 3-10 dm. high. Leaves usually thick, rough on both sides, 

 pubescent beneath, dentate, undulate or entire, acute or acuminate, the lowest and 

 basal ones ovate, cordate, 5-12 cm. long, with naked or margined petioles; middle 

 ones ovate, lanceolate or oblong, with margined petioles dilated and clasping at the 

 base, the upper sessile or clasping, those of the branches small and subulate; heads 

 numerous, racemose and often secund on the spreading branches, about 8 mm. 

 high, 16-20 mm. broad; involucre broadly turbinate, its bracts linear-oblong, 

 pubescent, acute or acutish, their green tips appressed; rays 8-15, pale blue to 

 violet, 6-io mm. long; pappus whitish. In dry soil, N. B. and Ont., south toFla., 

 Ala. and Ark. Sept. -Oct. 



Aster undutetus abruptif61ius Burgess. Tall, 1-1.5 m. high; leaves rougher, chiefly 

 short -ovate, sessile, entire and about 5 cm. long, 4 cm. broad; inflorescence pyramidal; 

 heads much darker, more crowded. N. Eng. to Va. 



Aster undulatus loriformis Burgess. Predominant leaves greatly elongated, linear- 

 oblong to linear-lanceolate, often 15 cm. long, with the clasping base narrowed or broad- 

 ened, only a few of the lower ones contracted into winged petioles; plant little pubescent 

 at maturity. Eastern Mass, to Va. and Penn. 



Aster undulktus torqu^tus Burgess. Leafy, 2-3.5 dm. high, dark green, short- 

 downy; leaves small, very short and broad, close together, entire, their bases clasping the 

 stem as a succession of collars, often i cm. in diameter; lowest leaves petioled; inflores- 

 cence much branched, paniculate. Martha's Vineyard, Mass., to Long Island. 



Aster undulitus triangulkris Burgess. Tall, leafy, 1-2 m. high, pale; pubescence 

 slight; leaves hispid above, ovate-triangular, acuminate, chiefly 5-7 cm. long, 18 mm. 

 broad and sessile. N.Y. to S. Car. 



26. Aster patens Ait. LATE PURPLE ASTER. (I. F. f. 3758.) Stem slen- 

 der, rough, 3-9 dm. high, divergently branched. Leaves ovate-oblong to oblong- 

 lanceolate, rough, pubescent, somewhat rigid, strongly cordate or auriculate-clasp- 

 ing at the broad base, entire, acute, or the lowest obtuse, 2.5-7.5 cm. long, those of 

 the branches much smaller and bract-like, the margins rough-ciliate; heads 25 mm. 

 broad or more, solitary at the ends of the branches; involucre broadly turbinate, 

 its bracts linear-oblong, finely pubescent or scabrous and somewhat glandular, im- 

 bricated, their green acute tips spreading; rays 20-30, purplish blue, or deep 

 violet, 8-12 mm. long; pappus tawny; achenes pubescent. In dry, open places, 

 Mass, to northern N. Y., Minn., Kans., Fla., La. and Tex. Reported from Canada. 

 Aug. -Oct. 



27. Aster phlogifolius Muhl. THIN-LEAVED PURPLE ASTER. (I. F. f. 3759.) 

 Similar to the preceding species, usually taller. Leaves larger, lanceolate to ob- 

 long-lanceolate, entire, thin or membranous, acuminate at the apex, strongly auri- 

 culate-clasping at the base, roughish above, pubescent beneath, usually narrowed 

 below the middle, sometimes 15 cm. long; heads usually numerous, 3-5 cm. broad, 

 panicled, or somewhat racemose on the branches; bracts of the involucre lance- 

 olate, glabrate, rather loose, with herbaceous tips; rays numerous, purple-blue. In 

 woods and thickets, N. Y. to Ohio, N. Car. and Tenn. Aug. -Sept. 



28. Aster Novae-Angliae L. NEW ENGLAND ASTER. (I. F. f. 3760.) 

 Stem stout, hispid, pubescent, corymbosely branched above, 6-25 dm. high, very 

 leafy. Leaves oblong -lanceolate, entire, acute, pubescent, 5-12 'cm. long, 12-25 

 mm. wide, clasping the stem by an auriculate or broadly cordate base; heads 

 numerous, 3-5 cm. broad, clustered at the ends of the branches; involucre hemi- 

 spheric, its bracts linear-subulate, somewhat unequal, green, spreading, pubescent 

 and more or less glandular- viscid; rays 40-50, linear, 10-16 mm. long, violet- 

 purple, rarely pink or red, or white; achenes pubescent; pappus reddish white. 

 In fields, and along swamps, Quebec to the N. W. Terr., south to S. Car., Mo., 

 Kans. and Colo. Aug. -Oct. 



29. Aster oblonorifolius Nutt. AROMATIC ASTER. (I. F. f. 3761.) Stem 

 much branched, hirsute-pubescent; 3-7 dm. high, the branches divaricate or 

 ascending. Leaves crowded, oblong, or oblong-lanceolate, sessile by a broad, 

 partly clasping base, usually rigid, entire, acute or mucronulate at the apex, rough 



