382 SYNANTHEREjE. 



tapering base, remotely serrate or serrulate above, glabresccnt on the upper side ; corymbs 

 compound, special subglobose ; heads 12-18 flowered : ligules 5-6, linear, 2-dentate, half 

 • as long again as the involucre ; scales of the involucre 10-12, accessory few, short, linear. — 

 Cineraria, Sw. ! Senecio jamaicensis, DC. — A. shrub {Sw.), but somewhat trailing (Pd) ; 

 leaves 1 2"-5" long ; involucre 4'" long ; teeth of the disk-flowers linear ; style-branches ex- 

 actly as in G. Cumingii : basilar tumour conical ; achenium glabrons, callous at the thick- 

 ened base. — Hab. Jamaica!, Sw., Macf., Wils., in the mountains, near S. Ann's bay, West- 

 moreland, southern districts. 



52. SENECIO, L. 



Head radiate, rarely discoid : ray-flowers 9 , ligulate. Involucre 1 -serial, with exterior 

 accessory scales. Receptacle flat, naked. Style-branches truncate, or with a short conical 

 appendage. Achenium subcylindrical : pappus soft. — Our West Indian species are shrubs, 

 with corymbose inflorescence. 



Sect. 1. Pericalia. — Corolla of the disk abruptly dilated at the base. Style with a 

 basilar hemispherical tumour : branches convex at the summit. — Ray white. 



v* 144. S. discolor, DC. Branches arachnoid-tomentose, glabrescent ; leaves oblong- 

 lanceolate, acuminate, serrulate, glabrous above, white-tomentose beneath, arch-veined ; 

 corymbs compound ; involucral scales 8-10, oblong-linear, tomentose in the middle, acces- 

 sory linear-setaceous ; ligules 5 (4-6), obovate, shortly exserted; disk-flowers 10-15 ; ache- 

 nium nearly glabrons. — Bot. Mag. t. 2647. — Cineraria, Sw. — 5'-6' high ; leaves 2"-6", in- 

 volucre 2"'-3'" long ; the ray-flowers white, with the disk yellow (" flores albido-lutescen- 

 tes," Sw.), but the ray becomes yellow in being dried. — Hab. Jamaica !, all coll., common 

 in the mountains, from 400' to 4000' alt., Port Royal, S. Andrews, Manchester. 



Sect. 2. Conogtnoxts. — Corolla of the disk gradually dilated at the base. Style with a 

 basilar, conical tumour : branches conical, or convex at the summit, rarely mucronate. 

 — Ray yellow. 



145. S. Swartzii, DC. Glabrous ; branches cylindrical ; leaves oblong or elliptical- 

 oblong, pointleted, quite entire or repand-dentate, petioled : veins distant, pinnate; corymbs 

 compound, fastigiate ; scales of the involucre 8—10, oblong-linear, acuminate, accessory 

 short ; ligules 4-3, oblong, half as long again as the involucre, disk-flowers 6-8 ; achenium 

 hairy. — Cineraria glabrata, Sw. Gynoxys, Less. — 5'-6' high ; leaves 4"-3" long, blunt or 

 tapering at the base ; involucre 4'" long. — Hab. Jamaica !, Macf, Pd., AL, Wullschl., 

 March, in moist mountain-woods. 



146. S. luci&as, DC. Glabrous; branches angular ; leaves oblong-lanceolate, acumi- 

 nate (or "inferior elliptical"), serrulate, shortly petioled: veins S-\Q-paired ; corymbs 

 compound ; scales of the involucre 6, oblong, bhmtish, accessory few, short; ligules 3 (-4), 

 lanceolate, nearly twice as long as the involucre, disk-flowers 8-4 ; achenium glabrous : pap- 

 pus pale-straw-coloured. — Plum. Ed. Burnt, t. 154: differing by elliptical leaves. — Ciue- 

 raria, Sw. Gynoxys, Less.- An arborescent shrub; leaves 6"-4", involucre 3'" long. — Hab. 

 Dominica!, Imr. ; Trinidad (Sieb.) ; [French islands !, in mountain-woods at 3000' alt.]. 



147. S. Padyenii, Gr. (n. sp.). Glabrous; branches cylindrical; leaves lanceolate- 

 oblong or oblong, pointed, tapering into the long petiole, dentate-repand above, with distant, 

 blunt, callous teeth : principal veins 1Q-I2paired, alternating with a loose network ; 

 corymbs few-branched ; scales of the involucre 5, oblong, blunt, accessory few, minute ; 

 ligules 2-3, lanceolate, 3-dentate, \ longer than the involucre, disk-flowers 5-3 ; acheninm 

 glabrescent: pappus white.— Leaves 6"-5" long, 2"-l$" broad: petiole \"-\\", involucre 

 3'" long. — Hab. Jamaica !, Macf. 



148. S. laciuiatus, DC. Glabrous or puberalous, glabrescent ; branches cylindrical ; 

 leaves spathulate-oblong, runcinate-lobed, tapering at the base : lobes remotely denticulate : 

 veins pinnate : petiole clasping at the base ; corymbs branched ; scales of the involucre 

 12-14, oblong-linear, bluutish ; " ligules 6, ovate, emargiuate, disk-flowers 20-24." — Cine- 

 raria, Sic. Gynoxys, test. — Leaves 5"-6", involucre 3'" long. — Hab. Jamaica !, Macf., on 

 the peaks of the Blue Mountains. 



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