Senecionidea;.] Couvositm. 189 



Tribe IX. SENECIONIBEJE. 



Leaves alternate, riower-heads usually lieterogamous with radiating female 

 florets, but sometimes homogamous with the florets all tubular and hermaphro- 

 dite. Heceptacle without scales. Anthers obtuse or scarcely pointed at the base. 

 Style-branches tmncate and penicillate, or ending in pubescent points. Pap- 

 pus of several capillaiy bristles. 



32. GYNURA, Cass. 



Florets all tubular. Involucre cylindrical, of a single series of nearly equal 

 bracts, with some smalhn- ones round their base. Corolla hardened at the 

 base. Style bulbous at the base, the branches ending in long linear haiiy 

 points. Achenes striate. — Herbs, often somewhat succulent. Flower-heads 

 terminal, usually loosely corymbose. 



A small tropical genus, confiucd to the Old World. 



1. G. pseudochixia, BC. Frod. vi. 299. Eoot-stock perennial, thick 

 and fleshy. Stems erect or ascending, 1 to 1| ft. high, somewhat succulent, 

 leafy in the lower part only, ending in along almost leafless peduncle, bearing 

 a loose corymb of 2 to 7 or 8 flower-heads, or sometimes a single head. Leaves 

 stalked, fi*om oblong to oval, coarsely toothed, rather thick, glabrous or pu- 

 bescent, 2 to 3 or even 4 in. long, the petiole often expanded at the base into 

 2 auricles or lobes. Flower-heads about 7 lines long. Involucre shorter than 

 the florets, of about 1 2 linear-lanceolate nearly equal bracts, with several short 

 slender ones outside. Florets yellow, drying pui'plish. — G. ovcdis and G. 

 amnculata, DC. Prod, vi, 300. G. bidbosa, Hook, and Arn. ; DC. Prod. vi. 

 301. PorojjJiyllum, Jderacioides, DC. Prod. v. 650. 



Ravines of Victoria Peak, and other parts of the island. Champion, Hmice, Wright, Wil- 

 ford. Also on the adjacent continent ; but not gathered certainly wild out of S. China. The 

 specimens sent from the Mauritius or from India are probably all from botanic or other gar- 

 dens. It is cultivated for its root even in China. 



33. SENECIO, Linn. 



Florets all tubular, or the outer row female and ligulate. Involucre of a 

 single row of nearly equal bracts, with or rarely without a few small ones 

 round their base. Corollas not hardened at the base. Style-branches in the 

 disk-florets truncate and penicillate, or very rarely with a short obtuse appen- 

 dage. Achenes striate or angidar. Pappus of numerous capillary bristles. — 

 Herbs or very rarely shrubs. Leaves alternate. Flowers terminal, solitaiy, 

 corymbose or paniculate. Florets usually yellow, rarely purple. 



The largest genus among Composite, and ranging nearly over the whole world, although 

 the individual species are often very local. 



Annual. Flower-heads discoid 1. «S'. so?ich}foUi(S. 



Perennials. Flower-heads radiating. 



Leaves stalked, ovate-lanceolate 2. S. chinensis. 



Leaves stem-clasping, lanceolate or linear Z. S. Stauntouii. 



1. S. sonchifolius, McencJi. An erect or ascending annual, about a foot 

 high, rather glaucous and glabrous, or with a {^\w loose hairs near the base. 

 Lower leaves usually orbicular, scarcely an inch diameter, sinuatcly toothed, 



