496 SYNGENESIA [Skskciokibf* 



I. A. hvbicaumb, JVult. Hirsute ; radical leaves ; opposite, decussate , 

 elliptic-ovate, nerved, nearly entire; stem almost learteaa, branched at 

 summit into a few loosely-corymbose peduncles. Beck, Hot. p. 177, 

 A.Claytoni. Pursh, Am. 2. p. 527. Al*>, Eat. Man. J, 29. 

 Doronicum nudicaule. Mx. Am. 2. p. 121. Per,. Syn. 2. p. 455. 

 Muhl. Catal.p.Tt. 

 Naked-stem Arnica. Vulgd— Leopard's Banc. 



Boor perennial, coarsely fibrous. Ami 1 to 2 feel high, simple and •C.pejte, 

 with a few peduncle-like branches at summit, striate, clothed with a roughi.h 

 ™£sccnce whS . L. what glandular and viscid. Radical leaves I to 4 inches 

 C, and" 1 J 2 or 2 and a half inches wide, mostly spreading on the ground, Clip. 

 ticTvate, or oblong-oval, rather obtuse, narrowed at base, sessile, opposite and 

 crowded at the base of the stem, usually in 3 or 4 pairs, enure, or obsolete* 

 dentate, often undulate on ihe margin, strongly nerved, hirsute somewhat punc- 

 tate ; cauline haves generally in a single pair near the middle of the stem, 1 to 2 

 inches long, and half an inch to an inch wide, lancc-ovatc, sessile, mostly opposite. 

 -*nd a few smaller alternate bract-like leaves at summit, one at the base of eaoh 

 branch, or peduncle. Heads of flowers large (1 to 2 inches in « hamster, including 

 the rays),terminal on loosely-corymbose peduncles ; involucre hirsute, the leaflets 

 lanceolate, nearly equal, about as long as the disk, somewhat in a double series, 

 connate at base ; rays deep yellow, numerous, lance-oblong, 2 or ^toothed atape* 

 disk greenish-yellow. Akenes somewhat compressed, linear-oblanceolate, striate, 

 ribbed, sparsely pilose, nearly black when mature ; pappus simple, setaceous, 

 •cabrous, nearly as long as the florets of the disk, alike on all the akenes, of a 

 dirty white color. Receptacle flat, naked, scrobiculale. 

 Hob. Meadows, near Jennerville : rare. Fl. June. Fr. July. 



Obs. This was collected at the above locality, in 1635, by Wm. Jackson, Esq - 

 but It is very rare in this County. I observed it in great abundance around buffolk 

 in Virginia, in 1832-in full bloom in the middle of May. Two or three addiuonal 

 species arc enumerated in the Western Territories of the U. States. 



396. SENECIO. /,. .Vutt. Gen. 664. 

 [Latin, Senex, an old man ; the pappus resembling a white beard.] 



Heads mostly hctcrogamous, radiate, or discoid. Involucre sub-cylin. 

 dric, the leaflets linear, often sphacelate or colored at apex, in a single 

 ■erics, with smaller accessory ones at base. Style of the perfect florets 

 with the branches truncate and pcnicillate at apex, or terminating in 

 a ahort puberulent cone. Akenes oblong, subtcrete, not beaked; 

 pappus capillary, in several scries, nearly equal, uniform. Receptacle 

 naked. 



f Heads radiate ,- branches of the Styles truncate, penicillate. 



1. 8. atjbeus, L. Radical leaves cordate-ovate, obtuse, serrate, on 

 long petioles, cauline ones lance-oblong, pinnatifid, sessile ; corymb 

 simple, subumbellate ; peduncles thickened at summit. Beck, Bot. 



p. 200. __ „-. 



Also .? S. Cymbalaria. Pursh, Am. 2. p. 530. Eat. Man. p. 3d5.. 



Golden Senecio. 



Root perennial. Stem 1 to 2 feet high, striate, smoolhish, branched above,-tHe 

 tower branches elongated, axillary, distant, the upper ones crowded, or auburn- 



