SYNGENESIA. SUPERFLTJA. 165 



A genus principally indigenous to Europe and the Cape 

 of Good Hope, there are also 2 species in South America, 

 2 in Japan, 1 in Arabia Felix, and a shrubby species, or 

 something else, in New Zealand. 



564. SENECIO. L, (Ragwort.) 



Calix cylindric, subcaliculate: scales sphace- 

 late at the points. Receptacle naked. Fapvus 

 simple, capillary, and copious. 



Suffruticose or more commonly herbaceous; leaves en- 

 tire or pinnatilid; flowers mostly corymbose or terminal; 

 }'eiio\v or rarely purple. A few species are destitute of 

 rays. 



Species. 1. S. vidgcris. Introduced. 2. hieracifoUus. 

 Seeds pubescent. 3. elongates. Ph. 4. paucijlorus. Ph. 

 3. panperculus. 6. ^^racilis. Ph. 7. obovatus. 8. Balsa- 

 mit£. 9. aureus, lb. Cymbalaria. Ph. A starved vari- 

 ety of the preceding? 11. canadensis. 12. lobatus, Persoon. 

 Common around New Orleans. 13. Kalmi. Cineraria 

 canadensis. Obs. Nearly all the North American species 

 of this genus are imperfectly or minutely caliculate, and 

 to separate them on this ground appears arbitrary and 

 unnatural, as they are perfectly homogenous. 



14. integrifolius. Cineraria integrifolia. Common also 

 to Europe. /3. heterophylla. A variety of the preceding] 

 a heterophylla. Ph. 2. p. 523. The stem leaves of the 

 American S. integrifolius are always more or less toothed 

 at the base. 



15. * integ-erriwis. Smooth; stem simple and attenuated; 

 leaves perfectly entire; radical ones long petiolate, lanceo- 

 late, acute, cauHne sessile, acuminate, uppermost minute; 

 corymb simple, 8 to l2-fio\vered? peduncles 1-flowered, 

 rays shorter than the hemispherical caliculate culix. Hab. 

 In'depressed and moist situations on the plains of the- 

 Missouri, near the Great Bend. Flowering in June. Flow- 

 er large and yellow. Stem 12 to 18 incites high. Lower 

 leaves thickish and somewhat carnose, very smooth, up- 

 permost minute, slightly tomentose; corjmb coarctate. 

 Seeds smooth. Nearly allied to S. arjuaticiis. 



A genus of more tiian 140 species principally indigenous 

 to Europe and the Cape of Good Hope. 



565. TUSSILAGO. L. (Colt's-foot, Butter-bur.) 



Ca/ix simple, scales equal, even with the disk 



and subniernbranaccous. Feminine florets ligii« 



