SYNANTHERE^. 383 



53. LIABD5I, Ad. 



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

 longer. Ueeeptacle fmHinXUie. Style-brandies \as^\iu\o\is. .4 cAeKa'aOT cylindrical: pap- 

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

 heads yellow, corymbose or solitary. 



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

 ovale or ovate-oblong, bluatish, 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 imibellatus, L. Starkea, Fl— 1'-2' high; leaves 3"-4" long, some:what ^ 

 longer than the petiole. — Hab. Jamaica!, all coll., in the higher mountains; rCuba!, 

 Haiti]. ■ 



Tribe- II. LABIATIFLOMM.—Corollig i-lipped, or ligulate only in the ray. 



64. LERIA, DC. 



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

 -slightly imbricate, few-serial. Receptacle Tiakei.. Anthers t!a\ei. Style-iranches j>ahem- 

 -lous. Aehenium subcompressed : facets costate: summit tapering into a filiform beak; 

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

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

 usually purplish-straw-coloured. 



150. X. nutans, DC. Leaves lyrate: termjnal segment large, ovate-oblong; involncral , 

 scales lanceolate-linear, acuminate ; beah 2-3 tirnes longer than the aehenium. — SI. t. 150. ' 

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



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

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

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



151. Ii. dentata, Spreng. leaves spathulate or spathulate-lanceolate, tapering at tlie 

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

 again or twice as long as the aehenium. — Plum. Ed. Burm. i. 40./! 2. — Tussilago, L. 

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

 narrower than in the preceding, 4s"!-&" broad ; involucre 10"'-12"' long ; interior flowers 

 bisexual. — Hab. Jamaica I, Bist., Wullsehl., Manchester. . 



152. Ii. albicans, DC. Leaves spathulate-lanceolate, pointed, with a few, minute, i 

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

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

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

 •Brazil !]. 



153. Ii. pumila, BC. Leaves lyrate-spathulate ; terminal segment contracted into 

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

 beak shorter than the aehenium. — 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. 



Seax^ homogamous. Involucre 1-2-serial. Receptacle fimbriUate or naked. Anthers 

 tailed. Style-branches truncate. Aehenium suhcylindrical, tapering above or shortly 

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

 yellow or whitish. 



154. T. frutescens, P. Br. Shrubby, glabrescent; leaves shortly petioled, lanceolate- 1 

 oblong, .denticulate or eutia-e ; corymbs leafy ; involucre 1-serial : scales 8, foliaceous, obr 

 long-linear, ciliate, with a few exterior accessory ones : aehenium tapering below the top.— 

 Br. Jam. t. 33./. 1.— Inula Trixis and Perdicium radiale, i.— 4'-5' high: leaves li"-4', 



