AND GENERA OF PLANTS. 289 



and mucronately denticulate, beneath more or less tomentose ; scape tall, with 

 numerous leaf sheaths; thyrsus many-flowered, smooth. — N. palmata? Hooker. 

 — Hab. Shady forests of the Oregon and Wahlamet, by streams. — May. A 

 very showy species; easily confounded with the true N. palmata, though 

 wholly distinct, being a larger plant, with the leaves more numerously lobed, 

 and not so deeply cleft. Leaves a foot high, six or more inches across, the 

 outline circular, with denticulations as well as angular indentions. Thyrsus 

 eighteen inches to two feet high, fastigiate. In the female, the capituli twenty 

 to twenty-five, large and conspicuous; the liguli white, exserted, very nume- 

 rous, linear-oblong, the style filiform and undivided ! pappus white, moderately 

 copious. — Quite an ornamental species, with fragrant flowers. 



ADENOCAULON. (Hooker.) 



Adenocauhn *integnfolium; primary leaves ovate, or subelliptic, the rest 

 deltoid or subcordate, nearly entire, almost all radical. — Hab. Shady woods of 

 the Wahlamet, near its confluence with the Oregon. A smaller species than 

 the A. bicobr, which it greatly resembles, but the leaves are not lobed, the cor- 

 date ones only are a little repand at times near the base. Perhaps not suffi- 

 ciently distinct from the A. Chilense. 



Tribe m. ASTEROIDE^. (Less.) 

 Subtribe Asterine^. 



CORETHROGYNE. (Decand.) 



Capitulum radiate, many-flowered, the rays sterile, in one series, destitute of 



achenium and pappus; discal florets tubular, shortly five-toothed, glandular. 



Sepals of the involucrum similar, imbricated in three to five series, more or 



less herbaceous and reflected at the points. Receptacle flat, alveolate, and 



naked. Branches of the stigma exserted, filiform, terminated by hirsute 



tufts of pubescence. Achenium turbinate, silky. Pappus of unequal length, 



in several series, scabrous. — Perennial herbaceous plants of Upper California, 



tomentose; stems branching; branches one or few-flowered, fastigiate; leaves 

 VII. — 3 X 



