298 DESCRIPTIONS OF NEW SPECIES 
lines wide; rays oblong, slightly three-toothed; peduncles short and naked. Stem about a span 
high. Pappus bright brown, barbellated. 
Xylorhiza * villosa, softly villous; leaves oblong-linear or sublanceolate, mu- 
cronulate; stem mostly one-flowered ; sepals of the involucrum lanceolate, very 
acute, nearly all equal; flowers large. 
Has. With the above, but less abundant. Very similar to the preceding; root equally large and 
woody. Flower as large as that of the garden marygold. Rays wide, and longer much than the 
disk, pale red. Involucrum pubescent, nearly equal. A showy plant, well deserving of cultiva- 
tion. Achenia very silky, as in the preceding. 
* EUCEPHALUS. 
Capitulum radiate, styliferous rays, fertile; liguli of one series (seven to fifteen ;) 
hermaphrodite florets of the disk fertile. Stigma slender, filiform, acumi- 
nate, nearly smooth. Involucrum ovate, imbricate, of three or four series of 
nearly similar ovate, carinated scales. Receptacle flat, alveolate, fimbrillate. 
Achenia angular, pubescent (or smooth in C. alba.) Pappus about two se- 
ries, scabrous, simple and clavellate-—Herbaceous perennials with nearly 
simple stems, the summit, or the fastigiate branches, corymbose. Leaves 
entire, the radical rarely serrulate. Disk yellow. Liguli pale purple or 
white.—Plants with the habit of Ga/latella, and the pappus of Sericocarpus. 
(The name alludes to the elegant appearance of the calyx.) 
+ Achenia pubescent, flovers purplish. 
- Eucephalus * elegans; minutely scabrous; stem attenuated; leaves all entire, 
linear-lanceolate, sessile, acute, the lower three-nerved; flowers in a short, un- 
equal, contracted corymb; sepals purplish, ovate, acute, one-nerved, pubescent 
on the margin; rays purplish, about six or seven. 
Has. Oregon plains and the Blue Mountains of the west. Flowering from September to Octo- 
ber.—A very elegant species, with a stout ligneous root, sending up a cluster of simple stems, two 
to three feet high, thickly clad with erect leaves, becoming smaller towards the summit, one to two 
inches long, by a quarter to half an inch wide, scabrous towards the margin; branchlets about an 
inch long, one-flowered; capituli eight to twelve in number. Involucrum of four series of very 
elegant, purplish, ovate, acute, appressed, carinated scales, conspicuously pubescent along the 
margin. Rays three-toothed, about six to seven, rather narrow and distant, pale purple; tubular 
