412 COMPOSITE':. .'Seneci;. 



Var. Balsamitas, Torr. & (iray, has thinner leaves, even llie radical ones lan- 

 ceolate or elun^Mteil-oblung, tlie cauline pinnately-parted. 



Var. borealis, Torr. t^ <^'niy, is a low i'orni, a span to a foot or more high, soon 

 glabrous, with thick and lirni small leaves ; the radical obovato or spatulate anil 

 merely toothed, 8(tiiiu(.iiiii'S only ut the apex; caidiue ones usually lew : heads one 

 or two, or several. Alpine I'orms of this pass into the next species. 



Moist or wet ground, chielly in the Sierra Nevada : the ordinary form from near Moiuit Dana 

 (Brewer), thence eastwaril and northward to the Atlantic. The var. multilobatus hardly in (Jali- 

 Ibrnia (as the original is lioni Nevada or Utah, and t'ouUer's iilant very likely is of the foregoing 

 K[iccies), but occur.s aa near a.s the rah-lHo Mouiituins in Nevada. Vur. BahcuiiiUt luu) heen 

 collected no nearer than Oregon. Var. borealis at (.'arson, Suuunit, &.C., and an alpine form 

 connecting it with 8. canua from high [loaks, Mount Dana, &c. The most polymorphous species 

 of the genus. 



■»--»--{- Leaves lanceolate or broader, entire, serrate, or rarely some of them laciniate : 



akenes glabrous. 



++ Low, small-leaved : heads few or solitary. 



8. S. canus. Hook. A span or two high, white with a dense close wool which 

 is mostly permanent : leaves entire or rarely few-toothed ; the radical and lowest 

 oblong, oval, or spatulate (an inch or less in length and with rather slender peti- 

 oles) ; the upper occasionally sinuate-pinnatilid : heads few : involucre nearly naked 

 at base: rays 8 to 12, oblong, yellow, occasionally wanting. — Hook. Fl. i. 333, 

 t. 116. 



Highest portions of the Sierra Nevada, Mount Dana to Silver Mountain, &c., at 9,000 to 

 12,000 feet {Brewer, Bolandcr) ; also on the Hiunboldt and Rocky Mountains, and thence far 

 northward. On the higher peaks of the Sierra apparently passing into an alpine state of S. aureus. 

 Heads 4 to 6 lines liigh : rays 3 or 4 lines long. 



9. S. Fremontii, Torr. & Gray. A span or two in height, diffusely much 

 bi-anched from the root, glabrous, leafy : leaves thickish and rather succulent, an 

 inch long or less, from rountl-obovate to spatulate, obtusely and irregularly toothed, 

 tapering into a narrow-cuneato base or short winged petiole: heads on short and 

 bracted peduncles terminating 1 ho stems or ehort branches : involucre sparingly 

 calyculate at base: rays 8 to \'l, yellow. — Fl. ii. 445; Gray in Proc. Acad. Philad. 

 1863, 67; Eaton in Eot. King Exp. 192. 



On Lassen's Peak, Leitimun. A rather small form. A species of the Rocky Mountains, before 

 found as far west as those of Utah. 



10. S. Greenei, Gray. Less than a foot high, lightly clothed with loose cob- 

 webby wool when young, inclined to be glabrous with ago : leaves chielly radical, 

 oval or round i.sh and mostly Avith a cuneatt^ base, coarsely crenato-serrate (an inch or 

 more in length) rather long pctioled; the cauline smaller and nearly sessile, sometimes 

 reduced to subulate bracts : heads mostly solitary, sometimes 3, large : involucre 

 (half an inch or more long) campanulate, wholly naked at base : rays 9 to 14, oblong- 

 linear, deep orange or llame color; disk-corollas also orange at the tips: style- 

 branches bristly-fringed ro\ind the base of the obtusely conical tip, which is pointed 

 with a central cusp. — Proc. Am. Acad. x. 75. 



Woods near the Geysers, Napa Co., E. L. Orceiw. Rays fully half an inch long. Akenes 

 glabrous. A showy bi)ccios. 



++ ++ Taller, afoot or two, sometimes a yard or m,ore high, naked at summit, the upper 

 leaves decreasing to bracts, commonly with loose woolliness when young, but green 

 and glabrous or nearly so with age. 



= Heads pretty large and broad ; the cavijxinulate or hemispherical involucre ^ to Q 

 lines long, loosely calyculate with some slender-subulate bracts. 



11. S. Clarkianus, Gray. Nearly glabrous, apparently from the first: stem 

 strict, 3 or 4 feet high, striate-angled, leafy almost to the top, bearing several or 



