Sknecio. COMPOSlTvE. 443 



Arctic America ! to Louisiana ! and from Labrador ! to Oregon ! a. in 

 swamps or meadows; /?. in drier places; e. in rocky places; y. (and (5. chiefly) 

 Arctic America! to the Rocky Mountains! &c. C- Cedar Swamp, Erown- 

 ington, Vermont, Dr. Robbins ! April-June. — A polymorphous species, 

 10-30 inches high ; the S. Balsamitse and S. obovatus pass by numerous 

 transitions into the typical S. aureus. 



24. S.Elliottii: at length glabrous; stem simple, often nearly naked; 

 radical leaves thickish, oval-obovate or roundish, crenate-serrate, tapering 

 into a winged petiole which is much shorter than the lamina, or nearly ses- 

 sile ; the cauline few and small, sessile, laciniate-pinnatifid ; the upper re- 

 duced to bracts; corymb small ; rays 9-12; achenia glabrous. — S. obova- 

 tus, Ell. sk. 2. p. 330 (as to the Southern plant described), not of Muhl. ^-c. 



Pennsylvania? to Georgia! Florida! and Alabama! May. — About a 

 foot high, the stem often scape-like and almost leafless, floccose-woolly when 

 quite young. Radical leaves crowded, 2-3 inches in diameter, frequently 

 coriaceous when mature, often sharply serrate or incised towards the nar- 

 rowed base, occasionally sinuate-incised or almost pinnatifid. Heads as 

 large as in S. aureus. 



25. S. tomentosus (Michx.) : clothed with a more or less deciduous canescent 

 wool ; radical leaves oblong or oval-lanceolate, mostly obtuse at both ends, 

 crenate-toothed, on slender petioles; the upper sessile; corymb fastigiate; 

 rays 12-15, elongated ; achenia strigose-pubescent on the angles. — Michx. ! 

 fl. 2. p. 119 ; Ell. sk. 2. p. 329 ,• DC. prodr. 6. p. 433. S. integrifolius, (i. 

 heterophyllus, Nutt.! gen. 2. p. 165. 



/J. smaller, very canescent; radical leaves obovate-spatulate and oval, ta- 

 pering into short petioles, slightly toothed ; the cauline incisely pinnatifid. — 

 Cineraria helerophylla, Pursh, fl. 2. p. 528 ? 



Virginia ! to Georgia ! Florida ! & Arkansas ! p. Blue Mountains (of 

 Pennsylvania, Pursh) oi Virginia, Mr. Buckley! April-June. — Stem 1-2 

 feet high, often nearly leafless, except at the base. Radical leaves on petioles 

 3-6 inches long, sometimes nearly entire, often sharply toothed near the base. 

 Heads larger than in S. aureus. 



26. iS. cawMS (Hook.): toraentose and canescent throughout ; radical leaves 

 oblong-spatulate, tapering into short petioles, entire ; cauline linear-lanceolate, 

 sessile, partly clasping, shiuate-pinnaiifid, or laciniate-toothed towards the 

 base; corymb mostly simple ; rays 8-12, short; achenia glabrous. — Hook. ! 

 fl. Bor.-Am. 1. p. 333, t. 116 ; DC. I.e. S. integrifolius, Nutt. ! gen. 2. p. 

 165. S. Purshianus, Nutt. ! in trans. Amer. phil. soc. {n. ser.) 7. p. 412. 

 Cineraria iniegrifolia /3. minor, Pursh .' fl. 2. p. 528, (excl. syn.) as to 

 the Missouri plant. 



j8. upper surface of the leaves becoming somewhat glabrous. Hook. I. c. 



Upper Missouri, Leicis, Nuttall ! and Saskatchawan, Drummond ! /?• 

 Lake Huron, Dr. Todd. — Plant 6-12 inches high, somewliat caespitose; the 

 leaves white with a persistent tomentum. — The achenia as figured by 

 Hooker are sparsely hairy along the angles near the summit ; which is 

 not the case in any of the specimens (of Drummond or others) that we 

 have examined. 



t t t + t Leaves all pinnately parted : involucre calyculate. 



27. S. Douglasii (DC.) : clothed with a deciduous arenose-canescent pu- 

 bescence ; stem striate, leafy; leaves linear, acute, entire, or mostly furnish- 

 ed towards the base with 1-3 pairs of small and remote narrowly linear 

 lobes, nearly glabrous when old, the margins re volute; heads few, in a naked 

 and loose compound corymb ; the subulate calyculate scales or bracteoles 



