472 Ouder 70.— COMPOSITE. , 



Essex ML, N. Y. St. 5 to 8' high, bearing the hds. in a subsimplo raccmo. Fb. 

 whitish and odorous. JL, Aug. 



2 N. nanus DC. St. simple, low, smooth; lvs. on slender petioles, tho lowest 

 variously lobed or parted, tho others successively deltoid-hastate, ovate and lance- 

 olate ; hds. in small, axillary and terminal clusters, forming a short, racemoua 

 panicle; in vol. greenish-purple, of about 8 scales and 10 — 12 flowers; pappus 

 dingy white. — White Mts., N. II., with No. 1, where wo find it with the same 

 sportive character of foliage as appears in other species. Stem 5 — 10' high. 

 Heads with whitish flowers. Aug. (P. alba. j3. nana Bw.) 



3 IT. altissimus Hook. St. smooth, slender, straight, paniculate above: Ivs. 

 more or less deeply 3 — 5-cleft, all petiolate, angular, denticulate and rough-edged, 

 tho lobes acuminate ; hds. pendulous; invol. of 5 scabs and about b-ftowered. — 

 Tall, with cylindric, 3-ellowish, nodding flowers, in woods, Newfoundland to N. 

 Eug. and Ky. Stem 3 — 5f high, bearing a narrow and elongated panicle. Heads 

 in short, axillary and terminal racemes. Aug. 



ji. ovatus. Caulinc Ivs. nearly all ovate, on slender petioles. 

 }. cordatus. Lvs. cordate, on slender petioles. (Prenanthes cordata Willd.) 

 6. DELTOiDEA. Lvs. deltoid, acuminate, acutely denticulate. (P. deltoidea Ell.) 

 e. dissectus. Lvs. mostly 3-parted or divided, segments cntiro or deeply cleft 

 into 2 or 3 narrow lobes. 



4 N. albus Hook. Lion's-foot. White Lettuce. St. smooth and somewhat 

 glaucous, corymbous-paniculate above ; radical lvs. angular-hastate, often moro 

 or less deeply lobed; stem lvs. roundish-ovate, dentate, petioled, tho lobes or 

 leaves obtuse ; hds. pendulous; invol. of 8 scales, 9 — 12-flowered; pappus brown, 

 ■ — Moist woods and shades, N. Eng. to Iowa, and Can. to Car. Stem stout, 2 — 4f 

 high, purplish, often deeply so in spots. Leaves very variable, all irregularly 

 toothed. Scales purplish. Fls. a dingy white. Aug. 



/?. serpen'taeia. Radical lvs. palmate-sinuate, those of tho stem on long 

 petioles, with tho middle segment 3-parted; upper lvs. lanceolate. — Has 

 tho reputation of curing tho rattlesnake's bite. (Prenanthes serpentaria Ph.) 



5 IT. Fraseri DC. St. smooth, corymbousbj paniculate above; lvs. subscabrous 

 hastate or deltoid, often pinnately lobed, on winged petioles, the upper ones lance- 

 olate, subsessile ; invol. of about S scales, 8 — 12-flowered ; pappus straw-colored. — 

 % In dry, hard soils, Conn, and Mid. States (rare) to Fla., common. Stem 2 — 4f 

 high. Leaves as variable as in other species, sometimes all being lanceolate, with 

 only irregular indentures instead of lobes. Heads drooping, with purplish scales 

 and cream-colored corollas. It is readily distinguished from N. albus by tho moro 

 lively color of tho pappus. Aug. (P. rubicaulis Ph.) 



6 N. virgatus DC. Glabrous and glaucous, slender and simple; lower lvs. sinuate- 

 pinnatifid, petiolate, middle ones toothed, sessile, upper entire partly clasping, 

 gradually reduced to the minute, subulate bracts; hcls. clustered, in a long com- 

 pound, virgate, somewhat secund raceme; invol. with about 8 scales and 10 flow- 

 ers; pappus-straw-colored. — A remarkably slender, wand-like species, in sandy 

 soils, N. J. to Fla. St. 2 to -if high, racemous half its length. Lvs. gradually 

 simplilied from tho base upward, as in most of tho species. Sept., Oct. 



7 N. racemdsus Hook. Glabrous, simple, slender; lvs. all undivided, lower 

 oval-lanceolate, sharply denticulate, petiolate, upper ovate-lanceolate, subclasping 

 entire; lids, in nodding fascicles, arranged in a long, interruptedly spieatc panicle; 

 invoL of 8 to 9 scales, with 9 to 1 2 fls. ; pappus straw-color. — N. J., N. W. States 

 and Can. St. 2 to 4f high. Fls. pale red-purple. 



/?. Lvs. deeply and irregularly pinnatifid, 



8 IT. asper Torr. & Gr. St. strict, simple, scabrous; lvs. simple, scabrous-pubes- 

 cent, dentate, lower ones oblong-oval, on margined petioles, upper lance-oblong 

 and lance-linear, subentirc, sessile ; hds. erect, in small fascicles, in a slender, 

 elongated, compound raceme; invol. strongly hirsute, of 1 to 10 scales and with 

 11 to 1-i lis.; pappus straw-color. — Dry prairies and barrens, W. States (Dr. 

 Skinner), common. St. 2 to 4f high, nearly smooth. Lvs. 3 to 5' long, pubes- 

 cent or glabrous. Rac 1 to 2f long. Fls. ochroleucous. Sept. (N. Illinoensia 

 DC.) 



9 IT. crepidirretis DC. Nearly glabrous ; £t tall, stout, corymbously paniculate; 



