95 6 FLORA. 



or hispidulous on both sides, rough-margined, those of the stem 3-5 cm. long, 4- 

 mm. wide, those of the branches gradually smaller; heads corymbose, nearly 2 , 

 mm. broad; involucre hemispheric, its bracts much imbricated, glandular, arc 

 matic, linear or linear- oblong, the acute green tips spreading; rays 20-30, viole 

 purple, rarely rose-pink, 6-10 mm. long; pappus light brown; achenes canescen 

 On prairies and bluffs, central Penn. to Minn., Neb.,Va.,Tenn. and Tex. Aug .-Oc 



30. Aster amethystinus Nutt. Amethyst Aster. (I. F. f. 3762.) R< 

 sembles the preceding species, but is often taller, sometimes 15 dm. high. Leave 

 often crowded, linear-lanceolate, entire, rough or hispidulous on both sides, parti 

 clasping, sessile, acute, those of the stem 3-5 cm. long, 4-6 mm. wide; heads rathe 

 numerous, racemose or corymbose, 1-2.5 cm. broad; involucre broadly turbinate 

 its bracts much imbricated, linear, hispid, not glandular, the acutish green tip 

 spreading; rays 20-30, blue-purple, about 6 mm. long; pappus brown; achenc- 

 canescent. In moist soil, Mass. to southern N. Y., eastern Penn., 111. and lows 

 Sept. -Oct. 



31. Aster major (Hook.) Porter. Great Northern Aster. (I. F. f. 3763. 

 Stem stout, leafy to the summit, usually densely pilose-pubescent with many-celle 

 hairs, rarely glabrate, branched above. 12-18 dm. high. Leaves membranous 

 lanceolate, partly clasping by a narrowed base, acuminate, sharply serrate wit 

 low distant teeth, dark green and slightly pubescent above, villous-pubescent o 

 the veins beneath, 7-12 cm. long, 10-20 mm. wide; heads mostly solitary at th 

 ends of short branches, 3.5 cm. broad; involucre hemispheric, its bracts imbr 

 cated, green, linear-subulate, densely glandular; rays 35-45, purple, 10-14 mir 

 long; achenes appressed-pubescent; pappus tawny. In moist soil, western Ont. t 

 Dak., Ore. and Br. Col. Sept. -Oct. 



32. Aster puniceus L. Red-stalk or Purple-stem Aster. (I. F. 

 3764.) Stem usually stout, reddish, corymbosely or racemosely branched above 

 hispid with rigid hairs, 9-25 dm. high. Leaves lanceolate to oblong-lanceolata 

 acuminate, sessile and clasping by a broad or narrowed base, sharply serrate, c 

 some of them entire, usually very rough above, pubescent on the midrib beneath 

 7-15 cm. long, 1-4 cm. wide; heads generally numerous, 2-4 cm. broad; invok 

 ere nearly hemispheric, its bracts linear or oblong, attenuate, imbricated in aboi 

 2 series, glabrous or ciliate, green, loose, spreading, nearly equal, sometim* 

 broadened; rays 20-40, violet-purple or pale, 10-14 mm. long, showy; pappj 

 nearly white; achenes pubescent. In swamps, N. S. to western Ont. and Minij 

 south to N. Car., Ohio and Mich. July-Nov. 



Aster punfeeus firmus (Nees) T. & G. Stem sparingly hispid, or glabrous, 6-15 

 high ; leaves sharply serrate. With the type. 



Aster puniceus'oligoc^phalus Fernald. Stem seldom over 7 dm. high, glabij 

 below ; branches of the inflorescence short ; heads few or solitary, large, the outer in 

 lucral bracts commonly large and foliaceous. Newf. and Lab. to Ont., N. H. and no 

 em N. Y. 



Aster puniceus compactus Fernald. Stem very hispid ; leaves firm, large, the uj 

 mostly longer than the short branches of the inflorescence; heads compactly cluste 

 large. Eastern Mass. to Penn. 



Aster puniceus lucidulus A. Gray. Stem nearly or quite glabrous; leaves crowi 

 entire, or nearly so, thin, glabrous or slightly rough-pubescent. Quebec to N. E 

 Ont. and Mich. 



Aster puniceus Crawfordl Porter. Stems slender, in height 7.5-8 dm., somevhai 

 hispid; lower and middle leaves linear and lance-linear, acuminiate, 5-10 cm. long in 

 about 5 mm. broad, becoming revolute, scantily denticulate, very scabious above, nut ' 

 escent on the midribs beneath : the upper ones on the panicle much smaller and ovMtl 

 Collected at Tullytown, Bucks County, Pa., by Mr. Joseph Crawford. 



33. Aster tardiflorus L. Northeastern Aster. (I. F. f. 3765.) siei 

 glabrous, slightly pubescent above, or sometimes villous, corymbosely branc^e! 

 near the summit. 3-0 dm. high. Leaves lanceolate or oblong-lanceolate, seifl 

 with low teeth, or some of them entire, acuminate, narrowed into a clasping bast 

 glabrous or nearly so on both sides, roughish margined. 7— I ^ cm. long. 8-20 mffi 

 wide; heads about 25 mm. broad, not very numerous; involucre hemispheric, J J 

 outer bracts broad and foliaceous often 12 mm. long, acute, somewhat unequa 

 rays ZO-30, violet; pappus nearly white; achenes pubescent. Along stream; 

 Ma 5. to Lab. Au;;. -Oct. 



