*76 SYNGENES1A.— mqjOAUS. 



embracing the margin of the seed. Seed com- 

 pressed, margined, crowned with 2 persistent 

 awns. 



NECESSARIA. 



504. SILPHIUM. Cal. squarrose ; scales broad and 



leafy. Recept. chaffy. Seed flat, obcordate, 

 emarginate, bidentate. 



505. POLYMNIA. Cal. double ; exterior 4—5- 



leaved ; interior 10-leaved ; leaflets concave. 

 Recept. chaffy. Pappus 0. 



506. IVA. Cal. about 5-leaved, or 5-parted. Florets 



of the ray 5. Recept. hairy. Seed obovate : 

 naked. 



SEGREGATA. 



507. ELEPHANTOPUS. Partial Cal. 4-flowered. 



Florets 5-cleft. ligulate, perfect. Recept. naked. 

 Pappus setaceous. 



SYNGENESIA. 

 ^EQUALIS. 



461. CICHOR1UM. Succory. Composite*. 



C. Intybus : flowers axillary, sessile, in pairs ; leaves 

 runcinate. 

 HAB. Fields. July—Sept. U. Stem 2— 3 ft. 

 high, branch., rough ; fi. large, bl. §. 



462. APARGIA. Composite. 



A. auiumnalis : scape branching ; peduncles squamose ; 

 leaves lanceolate, dentate or pinnatitid, smoothish ; 

 calyx elongated. 

 HAB. Fields, &c. June — Nov. U . Leav. rad. } 

 scape spread., assurg. ; fl. yell, §. 



