370 OKDER LXVHI. COMPOSITE. 



subulate awns. — White. Sept. — Oct. Western Geo. and Ala. 2 — 7 

 feet. 



Genus XX.— BRACHYCHiE'TA. T. <fc G. 



(From, -we presume, brakus, short, and chaite, hair, in allusion to its stem.) 



Heads few-flowered. Involucre cylindrical, imbricate ; outer 

 ones the shortest. Receptacle naked ; disk florets about as long 

 as the ray florets. Pappus consisting of short, scabrous bristles, 

 in one series. Achenia obconic. Herbaceous plants, with al- 

 ternate serrate leaves. 



1. B. couda'ta, (T. <fe G.) Stem pubescent, simple or paniculately 

 branched at the summit. Leaves cordate at the base of the stem, be- 

 coming less so toward the summit, finely veined Flowers in a unilat- 

 eral raceme or spike. — Yellow. If. N. Car. and Northern Geo. 2 — 4 

 feet. 



Genus XXL— SOLID A' GO. L, 

 (From solido, I make firm.) 



Involucre imbricate, with appressed scales ; florets of the ray 

 usually 5, pistillate ; those of the disk perfect. Receptacle 

 naked, punctate. Pappus pilose, simple. 



1. S. discoi'decs, (Ell.) Stem erect, usually villous, with few erect, 

 virgate branches. Leaves spatulate, coarsely serrate, acute, pubescent. 

 Flowers in long, virgate panicles ; involucre with villous, subulate 

 scales; ray florets wanting ; those of the disk deeply 5-cleft, 12 — 15. 

 Seed glabrous. — Purple. %. Sept. — Oct. In rich, high lands. North- 

 ern Geo. 3 — 4 feet. 



2. S. Canadensis, (L.) Stein erect, villous. Leaves lanceolate, ser- 

 rate, 3-nerved, scabrous on the upper surface, pubescent beneath. 

 Flowers in long, recurved racemes, secund; involucre with 12 — 16 ob- 

 long, appressed scales ; ray florets very short. — Yellow. 2£. Sept. — 

 Oct. Mountains of Car. Golden Bod. 



3. S. pl'bens, (Rev. M. A. Curtis.) Stem virgate, nearly terete, pu- 

 bescent, tomentose-villous above. Leaves oval-lanceolate, sessile, ser- 

 rate, Dearly glabrous above, pubescent on the veins beneath. Heads in 

 small axillary clusters; involucre villous; rays small, 4 — 7; disk flo- 

 rets as many. Achenia canescent. — Aug. — Sept. N. C. 2 — 3 feet. 



4. S. Buckley'i, (T. & Or.) Stem villous, leafy. Leaves oblong, ses- 

 sile, villous on the under surface, coarsely serrate. Heads in small ax- 

 illary clusters ; scales of the involucre nearly glabrous ; rays 4 — (5 ; 

 disk florets i) — 12. Achenia glabrous. — Yellow. Oct. Ala. 2 — 3 

 feet. 



5. S. peoce'ra, (Ait.) Stem erect, villous. Leaves lanceolate, 3-nerv- 

 ed, acute at each end, finely serrate, scabrous on the upper surface, 

 finely villous beneath. FUncers in erect racemes, paniculate ; involu- 

 cre with linear lanceolate scales ; ra} T florets 6mall. — Yellow. 2f . 

 Sept.— Oct. Middle Geo. S— 5 feet. 



6. S. euoo'sa, (Willd.) Stem erect, hispid, branching toward the 

 summit. Lower leaves sessile, lanceolate, serrate, scabrous, hairy un- 



