156 SYNGEXESIA. SUPEHrLtrA. 



herbaceous, butvery elegant species: fiowers large, brlgLt 

 violet-purple. Stem 12 to 18 inches high. 



19. * 711071 1 anus. Leaves linear-lanceolate, sessile, entire, 

 subsericeously villous, obsoletely 3-nerved; stem erect 

 and somewhat slenJer; branches 1-flowered; calix folia- 

 ceous, hemispherical, leaflets linear-lanceolate, acute and 

 erect. Hab. On the mountains of Tennessee and North 

 Carolina; rare. (Near Ashville and Morganton.) Nearly 

 allied to the preceding, but dist'nct. Stem often perfectly 

 simple, also branched, 1 to 2 feet high, branches not fas- 

 tigiate, shorter than the summit. Leaves not tomentose, 

 scarcely canescent. Flowers violet-purple, twice the size 

 of the preceding, somewhat exceeding those of Ji. gvau' 

 (Kfonis, and containing about 25 rays. In the preceding the 

 rays are from 18 to 20. 20. reticiihitns. Ph. 



21. saucifoUus. 22. a^tiznis. 23. 7iovce anglice, y. spu- 

 riiis, Persoon, is the natural aspect. Leaves lanceolate, 

 amplexicaule, entire, auriculate at the base; stem pilose 

 and paniculate; branchlets mostly 1-flowered, subfastigiate; 

 scales of the calix loose, linear-lanceolate, about equal with 

 the disk. Hab. From Canada to Pennsylvania, l his is 

 the plant commonly misnamed A. grandiforns. Flowers 

 large, and of a deep purplish-blue; rays very numerous 

 and linear. Stem 4 to 6 feet. 



24. cyancus. 25. grandiflonis. 26. caroUniamcs. Stem 

 ti'ailing shrubby or sufrruticose. Seed oblong, smooth, 10- 

 striate; pappus reddish. 



27. * oblongljolins. Herbaceous; stem and leaves mi- 

 nutely scabrous; leaves sublanceolate-oblong, partly am- 

 plexicaule, without pubescence; stem low and divaricately 

 branched, branchlets 1 or few-flowered, subfastigiate; ca- 

 lix hemisplierical, fohaceous, and squarro.se, leaflets li- 

 near-oblong, acute. Hau. On the banks of the Missouri. 

 Stem scarcely more than 12 inches high, compoundly and 

 rigidly branched; leaves of the branchlets smaller, all ap- 

 pearing smooth and partly obtuse, but scabrous to the 

 touch; flowers terminal as in A. biemiis, pale purple, mid- 

 dle sized, smaller than those of A. carolinianuc, to which 

 species it appears distinctly allied; calix remarkably folia- 

 ceous, scabrousiy glandular. Seed villous. 28. phlagi- 

 foliiin. 29. patens. 



f t Leaves cordate and ovate; serrate, 



30. iindulatns. A. diversifoUus. Mich. 2. p. 113. 31. fa- 

 gittiJoUns. 32. paniculatiis. Scarcely different irom No. 30. 

 00. cordifoliiis. A. hcterophjllus. Willd. 34. corv^'jesr:^, 

 C5, ?uacrophi'!lin-. 



