402 Lxxiii. COMPOSITE (OLIVER AND hiern). [Gynura. 



cainpanulate ; bracts l-seriate narrow equal with a few outer smaller. 

 Receptacle foveolate or minutely fimbrillate. Anther-base entire or 

 bidentate. Style-branches slender with subulate appendices. Achenes 

 terete striate ; pappus of copious white fine setae. — Herbs with alter- 

 nate pinnatifid-lyrate dentate or entire leaves and yellow orange-red or 

 violet terminal medium-sized capitula, either solitary or more or less 

 corymbose. 



A genus of the Old World, differing from discoid species of Senecio in the longer 

 subulate appendix of the style-branches. 



Heads always solitary. 



Corollas purple, falling short of the pappus. Upper 



leaves sessile 1. G^. cemua. 



Corollas yellow, equalling or exceeding the pappus. 



Leaves mostly petiolate 2. (r. vitdlina. 



Heads in corymbose cymes (very rarely solitary). 



Leaves mostly lyrate or pinnatifid, the lower ones petiolate. 



Margins of the leaves acutely dentate 3. G. crepidioides. 



Margins of the leaves repand 4. (r. miniata. 



Leaves sessile, amplexicaul, not pinnatifid 6. G. amplexicaulis. 



1. G-. cemua, Benth. in Hooh. Nig. Fl. p. 437, excl. syn. part. 

 Erect branched puberulous annual, about 2-3 ft. high. Leaves irre- 

 gularly dentate or lobed, 1-4 in. long ; the upper ones sessile ovate or 

 oblong or laciniate-lyrate, auriculate-amplexicaul at the base; the 

 lower ones petiolate. Capitula solitary, terminal, ^| in. long, oblong 

 soon becoming hemispherical ; peduncles mostly 6-12 in. long, bearing 

 a few linear or subulate bracts. Involucral bracts linear subulate gla- 

 brous. Disk with filiform bracts below, somewhat hairy. Corollas 

 slender shorter than the pappus, teeth minute scarcely spreading, purple. 

 Anthers included. — Senecio cernuvs, Linn. fil. Suppl. PI. p. 370 (1781) ; 

 Crassocephalum cernmim, Moench. Meth. PI. p. 516 (1794) ; Cremoce- 

 phalum (sp.) Cass. Diet, xxxiv. p. 391 (1825) ; Cacalia unijlora, Schum. 

 & Thonn. Beskr. p. 382 (1827) ; Senecio rubens^ Jacq. Hort. Yindob. iii. 

 p. 50, t. 98 (1777). 



Vpper Guinea. Guinea, Thonning ! Niger, Vogel I Barter ! 

 Iffile Xiand. Sennaar, Cienkovosky \ Abyssinia, Schimper ! 6-7,000 ft, alt. ; Djur- 

 land, Schweinfurth ! 



XtSozamb. Distr. Manganja Hills, Meller ! 

 Extends to the Comoro and other African Islands. 



2. G-. vitelllna, Benth. in Hooh. Niger Fl. p. 438. Subglabrous 

 or puberulous somewhat shining herb, 2-6 ft, high, ascending from a 

 procumbent base, with patent branches, sometimes subscandent. 

 Leaves ovate or lanceolate, mostly petiolate, irregularly dentate, some- 

 times indistinctly lobed, broad near the base, 1-4 in. long, besides the 

 petiole of l^-lj in. which has stipuliform auricles at. base. Capitula 

 |— I in, long, erect or somewhat drooping, subhemispherical, solitary, 

 terminal, on peduncles of 4-12 in., which bear about 2 or 3 narrow 

 bracts. Involucral bracts linear-subulate, more or less hairy. Disk 

 hairy with filiform bracts below. Corollas wider upwards, yellow. 



