Carphephorus. COMPOSITiE. 67 



scattered, mostly linear; heads commonly solitary upon each slender branch 

 of the nearly simple corymb; scales of the involucre ratlier loose, oblong and 

 obovate, very obtuse, not margined; the outermost spreading; lobes of the 

 corolla lanceolate-linear, elongated ; achenia hairy ; pappus densely plu- 

 mose-barbellate.— Liairis bellidifolia, Mkhx. ! fi. 2. p. 93; Nuit. ! gen. 

 2. p. 133 ,• DC. jJrodr. 5. p. 132. 



Dry sandy hills, near Wilmington, North Carolina, Michaux ! Nut t all ! 

 Delile! Mr. Curtis! Sfc. Sept.— Plant 8-12 inches high; tbe stem often 

 branched from about the middle. Scales of the campanulate involucre in 

 about 3 series, glabrous, the margin scarcely scarious or ciliate ; the outer- 

 most smaller aiid bracteolate; the second series obovate or obovate-oblong ; 

 the innermost linear-oblong and much longest. Bristles of tlie pappus almost 

 plumose to the naked eye. Chaft' of the receptacle narrowly linear, as long 

 as the flowers, deciduous. 



4. C corymbosus : stem solitary, tall, stout, somev/hat hirsute-fomentose; 

 leaves nearly glabrous, about 1-nerved; the radical ones oblanceolate, ob- 

 tuse, gradually tapering to the base ; the cauline small and numerous, 

 oblong, closely sessile ; heads about 20, in a dense terminal corymbose cyme ; 

 the branches sliort, tomentose-hirsute, scales of the involucre nearly glabrous, 

 appressed, oval, very obtuse, with a broad scarious and somewhat fringed 

 margin ; lobes of the corolla ovate, very short ; achenia slightly hairy ; pappus 

 barbellate.— Liatris corvmbosa, Nutt. ! gen. 2. p. 132 (excl. syn.) ; DC. 



I. c. L. tomentosa? Ell. sk. 2. p. 284, not of M/c/i.r. 



Damp sandy soil, and along the margin of swamps, N. Carolina! to 

 Georgia! and Florida! Sept.-Oct. — Stein 2-4 feet high, striate. _ Leaves 

 somewhat fleshy, 1-nerved or very slightly tripli-nerved, sometimes ob- 

 scurely punctate ; the radical ones 4-6 inches long, very gradually narrowed 

 to the base; the cauline (gradually diminished to about half an inch in 

 length,) appressed. Inner scales of the involucre scarcely longer than the 

 others. Corolla pale purple. Pappus mostly white. ChafT of the recepta- 

 cle hnear or lanceolate, with scarious tips, shorter than the flowers ; often 

 wanting in the centre of the head. 



II. LIATRIS. Schreh. gen. p. 542 ; DC. prodr. 5. p. 128. (excl. spec.) 



Heads few-many-flowered. Scales of the involucre few or numerous, 

 imbricated, not striate. Receptacle naked. Corolla tubular, 6-lobed, the 

 lobes usually elongated. Branches of the style much exserted, cylindraceous 

 or somewhat flattened, obtuse. Achenia nearly terete, tapering to the base, 

 about 10-ribbed. Pap])us of numerous (15-40) plumose or barbellate 

 bristles. — Perennial (North American) herbs or very rarely shrubby plants, 

 mostly with simple stems and a tuberous root. Leaves alternate or scattered, 

 usually lanceolate or linear and entire, with a rigid or cartilaginous mar- 

 gin, l-5-nerve(l, rarely veiny. Heads disposed in an elongated spike or 

 raceine (flowering from the summit downwards), sometimes (as if by acci- 

 dent) paniculate, rarely corymbose. Flowers jjurple, occasionally varying 

 to white; the corolla, style, &c. commonly dotted with scattered resinous 

 globules. 



§ 1. Root a globose mostly naked tuber {impregnated roith a tcrebinthine sub- 

 stance) : leaves linear or lanceolate, gramineous, 1-5-nerved, mostly punc- 

 tate with hninessed and resinous dots: heads in a virgate spike or raceine : 

 involucre manifestly imbricate: lobes of the corolla lanceolate or linear: 



