irixl SYXGENESIA 44l 



I to 2 or 3 inches in length, narrowed to a petiole at base. Shapes 3 to 9 

 denta e, ^ m ^ y 2 to 4 or 5 from a root, sometimes solitary, slender, naked, 



' th elongating. Read of flowers terminal, small; leaflets of the involucre 

 m °t\s in a simple scries, linear-lanceolate, acute, nearly equal, spreading. Flo- 

 nCa Lev yellow. Akenes oblong-turbinate, sulcate-striate, scabrous, reddish 

 fetS • C crowned with 5 roundish or cuneate-obovate membranous scales, and 3 

 scabrous white bristles. 



Uab Dry, sandy grounds; roadsides, <fcc. frequent. Fl. May-Aug. Fr. June-Sept. 

 Obs This plant varies considerably in appearance, in different stages of its 

 progress to maturity. It is the only species of the genus. 



361. CYNTHIA. Don. Less. Syn. p. 129. 

 rPerhaps from Mount Cynthus ; which was sacred to Apollo and Diana.] 



Tivoiucre many-leaved, in a double series. Akenes oblong, striate, 

 smoothish, not beaked. Pappus in many series, unequal, the outer 

 series very short, of many pale© ! the others hair-like, scabrous, cadu- 

 cous. Receptacle naked, 



1. C. AMPLEXH-AULis, Beck. Stem scape-like, often bifid, or trifid, 



fcw-leavcd ; radical leaves sublyratc and spatulate-lanceolate, caulinc 



ones lanceolate, amplexicaul, entire. Beck, Bot. p. 168. 



Hyoscris amplexicaulis. Mx. Am. 2. p. 87. 



H. prenanthoides. Wittd. Sp. 3. p. 1615. JWuhl. Catal. p. 69. 



Troximon virginicum. Pers. Syn. 2. p 360. Pursh, Am. 2. p. 505. 



Lindl. Ency. p. 666. 



Krigia amplexicaulis. Nutt. Gen. 2. p. 127. Bart. Phil. 2. p. 93. 



Ell. Sk'. 2. p. 266. Torr. Comp.fi. 2S0. JEat. Man. p. 19G, 



Amplexicaul Cynthia. 



Plant smooth and glaucous. Root perennial. Stem 12 to 18 inches high, scape- 

 like often 2 or 3 from the root, nearly naked, mostly once or twice bifid, or dichot- 

 omies, with an amplexicaul leaf at the f>rks, often trifid, or with 3 slender upright 

 naked branches, or peduncles, at summit. Radical leaves 3 to 6 inches long, and 

 one or two inches wide, spatulate-lanceolate, sinuate-dentate, subly rate, or nearly 

 entire, narrowed to a petiole at base. Heads terminal on the branches, often a 

 little hairy at base, or on the summit of the peduncles; leaflets of the involucre 

 lance-linear, united at base, arranged alternately somewhat in a double series. 

 Florets deep yellow. 

 Rub. Mica-slate range: not common. Fl. May —June. Fr. July. 



Obs. The pappus, in my specimens, seems to consist entirely of brittle scabrous 

 hairs, withont any exterior chaffy scales. This has been found in several places 

 in the Northern side of the County ; but is not very common. It is probable this 

 Genus may embrace one or two other American plants, which were formerly re- 

 ferred to Krigia. 



Sub-Tribe 5. Sgorzonere^. Pappus paleaceous, of very narrow semi-lan- 

 ceolate bristle-like scales, mostly plumose, at least the interior ones,— rarely all 

 scabrous. Receptacle without bracts. 



362. TRAGOPOGON. L. Less. Syn. p. 133. 

 [Greek, Tragos, a goat, and Pogon, a beard ; in allusion to the pappus.] 



Involucre many-leaved, sub-simple. Akenes striate, scabrous, tcrmin- 



