SYNANTHERE.E. 383 



53. LIABUM, Ad. 



Head radiate : ray-flowers $ , ligulate. Involucre imbricate : scales acuminate, interior 

 longer. Receptacle fimbrillate. Style-branches hispidulous. Achenium cyhndrical: pap- 

 pus pilose, 1-2-serial. — Perennial herbs or shrubs ; leaves opposite, white-tomentose beneath ; 

 heads yellow, corymbose or solitary. 



149. L. Brownei, Cass. Herbaceous, arachnoid ; stem simple, leafless above ; leaves 

 ovate or ovate-oblong, bluutish, abruptly contracted at the base, dentate, glabrate above : 

 •petioles winged, often crenate, contiguous at the base ; corymbs compound, many-headed ; 

 pappus soft, straw-coloured: exterior hairs of the same texture, shorter. — Br. Jam. t. 

 33./. 2. — Amellns umbellatus, L. Starkea, W. — 1'-2' high ; leaves 3"-4" long, somewhat 

 longer than the petiole. — Hab. Jamaica !, all coll., in the higher mountains • [Cuba ! 

 Haiti]. 



Tribe II. LABIATIFLORAU. — Corolla 2-lipped, or ligulate only in the ray. 



54. LERJA, DC. 



Head heterogamous : ? flowers pluriserial, exterior ligulate, central bisexual. Involucre 

 slightly imbricate, few-serial. Receptacle naked. Anthers tailed. Style-branches puberu- 

 lous. Achenium subcompressed : facets costate : summit tapering into a filiform beak : 

 pappus pilose. — Annual (Sw.) herbs ; leaves all rosular, white-tomentose beneath; scape 

 often nodding at the top, i-headed ; flowers white or purple: ray scarcely exserted ; pappus 

 usually purplish-straw-coloured. 



150. 1m. nutans, DC. Leaves lyrate-. terminal segment large, ovate-oblong; involucral 

 scales lanceolate-linear, acuminate ; beak 2-3 times longer than the achenium. — SI. t. 150. 



/ 2. — Tussilago, L. L. integrifolia, DC. : a form with the basilar leaf-lobes reduced. — 

 Scape usually 1-2' high ; leaves large : inferior lobes few, rounded ; involucre 12"'-8'" 

 long; ray purple. — Hab. Jamaica!, Al„ M'Nab, a weed; Antigua!, Wullsehl., Domiuica!, 

 Imr., S. Vincent !, Guild. ; Trinidad !, Cr., common ; [Texas ! to Montevideo !]. 



151. la. dentata, Spreng. Leaves spathulate or spathulate-lanceolate, tapering at the 

 entire base, regularly sinuate above ; involucral scales linear, acuminate ; beak half as long 

 again or twice as long as the achenium. — Plum. Ed. Burm. I. 40. f. 2. — Tussilago, L. 

 Chaptalia, Cass. C. tomentosa, Vent., is a congener too. L. sinuata, DC. — Leaves much 

 narrower than in the preceding, 4"'-6'" broad ; involucre 10"'-1 2'" long ; interior flowers 

 bisexual. — Hab. Jamaica !, Dist., Wullsehl., Manchester. 



152. I*, albicans, DC. Leaves spathulate-lanceolate, pointed, with a few, minute, 

 distant teeth or entire ; involucral scales linear, acuminate ; beak as long as the achenium. — 

 Tussilago, Sw. L. nutans, var. integrifolia, Less. — Scape spithameous ; leaves 5"'-9'" broad ; 

 involucre 6"'-10'" long. — Hab. Jamaica !, Wilt., in dry pastures ; [Cuba ! and Mexico ! to 

 Brazil !]. 



153. 1a. pmnila, DC. Leaves lyrate-spathulaie : terminal segment contracted into 

 the uppermost sinuosity ; involucral scales short, lanceolate-linear, • bluntish at the top ; 

 beak shorter than the achenium. — Tussilago, Sw. — Scape 3"-6" high, filiform, glabrate ; 

 leaves 4"' broad ; involucre 4'" long.— Hab. Jamaica !, Wils., in calcareous, high moun- 

 tains; [Cuba!]. 



55. TRIXIS, P. Br. 



Head homogamous. Involucre 1-2-serial. Receptacle fimbrillate or naked. Anthers 

 tailed Style-branches truncate. Achenium subcylindncal, tapering above or shortly 

 beaked : pappus pilose.— Shrubs or herbs ; leaves undivided; heads usually corymbose, 

 yellow or whitish. 



154 T frutescens, P. Br. Shrubby, glabrescent ; leaves shortly petioled, lanceolate- 

 u, I *• „i„t„ « Pntire- corvmbs leafy; involucre 1 -serial i scales 8, fdiaceous, ob- 



oblong, ,dent,culate or ent re ™£™ D ^' one8 , vheaium tepering below the to 



long-linear, ciliate, with a tew exterior auceaoui j . , JT, , . «; , , .,* „ 



Br Jam. t. 33./. 1.— Inula Trixis and Pcrdicium radiale, £.—4-5 high, leaves 1J -4 . 



