204 COMPOSITE. (COMPOSITE FAMILY.; 



brackish swamps, with thinner and elongated linear- lanceolate leaves, tapering 

 to each end, with more erect racemes in a narrower panicle. Salt marshes, or 

 rocks on the shore, Maine to Virginia. Heads showy: the golden rays 8-10. 

 - *- Leaves usually ample, serrate, loosely feather-veined, or rarely slightly triple- 

 nerved; heads middle-sized. 



16. S. Clliptica, Ait. Smooth; stem stout (l-3 high), very letijy ; 

 'fiijitical or oblong-lanceolate, acute (2' -3' long), closely sessile, slightly 



serrate, strongly veined, thick, smooth both sides, shining above ; heads in dense 

 apn-aaing racemes ichich are crowded in a close pyramidal ]>ani<-le. ; peduncles and 

 achcnia strigose-pubescent. Swamps (fresh or brackish) near the coast, New 

 Jersey, Carey. Rhode Island, -Olney. Sept., Oct. Heads showy, 3" long; the 

 rays 8-12. 



17. S. neglccta, Torr. & Gray. Smooth; stem stout (2 -3 high); 

 leaves thickish, smooth both sides, opaque ; tJie upper oblong-lanceolate, mostly acute 

 and nearly entire ; the lower ovate-lanceolate or oblong, sharply serrate, tapering 

 into a petiole ; racemes short and dense, at length spreading, disposed in an elon- 

 gated or pyramidal close panicle ; peduncles and achcnia nearly glabrous. 

 Swamps, Maine to Penn. and Wisconsin. Heads rather large, crowded ; the 

 racemes at first erect and scarcely one-sided. 



18. S. piitllla, Muhl. Stem strongly angled, smooth (3 -5 high); leaves 

 (4' -8' long) ovate, acute, sen-ate, pale, very smooth and veiny underneath, but the 

 upper surface very rough, like shagreen ; racemes rather short and numerous on 

 the spreading branches. Swamps ; common. 



19. S. argllta, Ait. Smooth throughout (l-4 high) ; radical and lou-er 

 stem-leaves elliptical or lanceolate-oval, sharjdy serrate with spreading teeth, pointed, 

 tapering into winged and dilate petioles ; the others lanceolate or oblong, slightly 

 triple-nerved, tapering to "each end, the uppermost entire; racemes dense, nakl, at 

 length elongated and recurved, forming a crowded and fiat corymb-like panicle; rays 

 S- 12, small. Var. 1. JUNCJSA has the leaves narrower and less serrate, or 

 all the upper entire. Var. 2. SCABRLLA is somewhat roughish-pubesceiit 

 (Wisconsin, c.). Copses and banks, common, especially the first variety. 

 Well distinguished by its long or drooping racemes, and the closely apprcssed 

 rigid scales of the involucre, small rays, &c. But the name is a bad one, as 

 even the root-leaves arc seldom very sharply toothed. 



20. S. Mlllllcilbcrgii, Torr. & Gr. Smooth; stemangli; leaves (large 

 and thin) oratr, and the upper elliptical-lanceolate, very sharp/// and strongly .s<r- 

 ratc, pointed at both c.nds, the lowest on margined petioles ; raccm<* f>/. : 

 tpnafKng, disposed in an don gat (d open panicle; rays 6-7, large. Copsv 



inn; i woods, N. I lamps] :ire to Penn. Racemes much shorter and looser than 

 in the last ; the involucral scales thin and more slender. 



21. S. lilioitlos, Solander. Smooth; sf.-w d, ndn-, simple. (10'-20' high) ; 

 lans Itinrtolutf, serrate with small appresserj teeth, narrowed at the base, the 

 lower tapering into margined eiliate petioles, the uppermost oblong; / 

 s/iort, rrotcdid in onf or 3-4 small one-sid(d fani'^s (.'}'- 4' long) ; heads small 

 jiii'l ('"w-Howcri'd ; rays 1-3. Bogs, New England (near Boston y.nd Provi- 

 K-iice), to the pine barrens of New Jersey. 



