Gynura~\ 
composite. 
177 
minute linear outer ones. Flowers much fewer than in the last and 
corollas much stouter. Achenes and pappus just the same. Senecio 
pseudo-china, Linn. ; Dojer , Sort. Mam. 188. G. auriculata, Cass . ; 
DC. Prod. vi. 300. G. ovalis, DC. loc. cit. Cacalia ovalis, Ker ; Dot. 
Deg. t. 101. 
Mauritius, in waste ground. Through the tropics of the Old World. 
20. EMILIA, Cass. 
Flowers in a head all tubular and fertile. Involucre oblong-cylin- 
drical, the scales herbaceous, few, ligulate, placed edge to edge, with none 
outside at the base., Receptacle flat, alveolate. Anthers not tailed. 
Style-arms subterete, with short appendages. Achenes slender, cylin- 
drical, ribbed ; pappus of long copious soft white hairs. — Annuals, with 
alternate toothed entire or lyrate membranous leaves and middle-sized 
heads in lax corymbs. Histrib. Mostly tropics of the Old World. 
Species 45. 
1. E. sonchifolia, DC. Prod. vi. 302. A nearly glabrous branched 
erect annual, 2-3 feet high, with fragile slender stems. Leaves mem- 
branous and rather glaucous ; lower petioled, lyrate-pinnatifid, 3-4 in . 
long ; lobes toothed, the end ones much the largest ; stein-leaves 
sessile, lanceolate-hastate. Heads few, in a lax terminal corymb, with 
long peduncles. Involucre f-| in. long ; scales 10-12, persistent, 
reflexing after the flowers fall. Flowers 40-50 in a head, yellow, just 
exceeding the scales. Achenes glabrous, very slender, ■§— in. long ; 
pappus of very soft white hairs three times as long as the achene. 
Cacalia sonchifolia, Linn. 
Mauritius, in waste grounds ; Flat Island, Dr. Ayres ! E. rigidula , DC. loc, cit., 
is a slender variety with all the leaves narrow simple and lanceolate. A cosmopo- 
litan weed. 
21. SENECIO, Linn. 
Flowers in a head all tubular and hermaphrodite or the outer 
ligulate and female. Involucre cylindrical or campanulate ; scales 
narrow, herbaceous, except in S. appendiculatus placed edge to edge 
and usually a few small outer ones at the base. Receptacle flat, 
foveolate. Anthers not tailed. Style-arms falcate, subterete, trun- 
cate. Achenes cylindrical, glabrous, ribbed ; pappus of copious slender 
soft white hairs. — Herbs or shrubs, with alternate simple or compound 
leaves and heads in terminal corymbs. Histrib. Cosmopolitan ; one 
of the largest and widely spread of all known genera. Species 800- 
Involucral scales imbricated, tomentose ...... 1. S. appendiculatus. 
Involucral scales naked, valvate. 
Flowers all perfect and tubular. 
Subacaulescent herb 2. S. Pithosillum. 
Tall shrub 3. S. sechellensis. 
