372 SYNANTHBKE^. 



leaves petioled, ovate-lanceolate, long-acuminate, remotely serrulate, triplinerved, less stri- 

 gose beneath than above ; pedimclea ternate ; involucrd. leaves oblong-lanceolate, longer 

 than the disk; ligules oblong, shortly 2-dentate, exserted ; achenium compressed-tetra- 

 gonal, smooth: crown short, denticulate- -Gymnopsis verbesiuoides, DC.!, ex specim. 

 lockh.—henMW 4"-3", petiole 5"'-3"' long ; heads 8'" diam.-^HAB. Trinidad !, Locih., 

 Cr. ; [Veraguas, Panama I, Venezuela], 



99. W. buphthalmoides, Gr. Shrubby, scabrous with strigose down ; leaves pe- 

 tioled, ovate-lanceolate or lanceolate, acuminate, serrate or subentire ; petiole hispid-ciliate ; 

 peduncles solitary, as long as the uppermost leaves ; involucral leaves longer than the disk ; 

 ligules obloHg, long-exserted ; achenia of the dish oblong-linear, biconvex, with an argute 

 margin, which is broader at the base, smooth, of the ray somewhat broader, obovate-oblong, 

 margined : crown short, lobed. — Anomostephium, DC. — Probably a common and variable 

 species, but the achenia in /8 and 7 are still unknown : in one instance I see triplinerved and 

 arch-veined leaves on the same branch. Leaves 5"-4" {-2") long ; heads 14"-10"' diam. 



a. Leaves 1-nerved, arch-veined, serrulate or subentire ; involucral leaves ovate-roundish^ 

 blunt. 



j8. antiguensis, Nichols, (sec. Wullschl.). Leaves broader, serrate, triplinerved and veiny; 

 involucral leaves elliptical, pointed. 



7. dominicemis. Leaves of a, but triplinerved ; involucral leaves elliptical-oblong, 

 pointed. 



Hab. Bahamas !, Swains. ; Antigua !, Finl,, Wullschl. (fi), Dominica !, Imr. (7), S, 

 Vincent !, Guild, (a, 7) ; [Guadeloupe !, in arid places, a, 7]/ 



Of the other West Indian Wedelia, which probably all belong to Cyathophora, W.fru- 

 tescens, Jacq., has sessile or subsessile leaves, and will perhaps include W. calycma. Rich., 

 acapulcensis, Kth., and IV, a^nis and lanceolata, DC. ; W. reticulata, DC, has uninerved 

 leaves and a thickish vein-net beneath them ; W. ambigua, DC, broad, triplinerved, long- 

 petioled leaves : the disk in this and in W. reticulata exceeds the involucre ; in W. Sieleri 

 (W. frutescens, Sieb. Mart. 201), from an imperfect specimen, the rays are included, and 

 ■ the triplinerved leaves villous beneath. 



30. MELANTHERA, Sich. 



Mead discoid, homogamous. Involucre 2-serial. Becepiacle convex, paleaceons. Style- 

 hranches hispidulous above, acute. Achenium compressed-angular, crowned with several 

 awns. — Scabrous perennial herbs; stem tetragonal; \Bmes opposite, serrate, petioled, tri- 

 plinerved ; heads peduncled, single or ternate, white : prominent column Hack, with ter- 



Z' 



100. M. deltoidea, Rich. Leaves deltoid or slightly hastate ; exterior involucral 

 scales ovate (or ovate-oblong), blunt ; paleee mucronate-acute. — Jacq. Ic. Ear. t. 583.-^ 

 Bidens nivea, Su>. Galea aspera, Jacq. M. Linnsei, Kth., Sieb. Mart. 203. — 2'-5' high ; heads 

 5"'-6"' diam. — Hab. Bahamas I, Swains. ; Jamaica I, Maef., M'Nab, Wils., Wullschl., a 

 common weed ; Dominica 1, Imr. ; Trinidad I, Sch., Cr. ; [Cuba ! and Mexico ! to Venezuela 1 

 and Ecuador I]. 



31. WULFFIA, Neek. 



Head radiate or discoid ; the ray-ilowers sterile. Involucre imbricate. Receptacle con- 

 vex, paleaceous. Stgle-brar^ches hispidulous above. Achenium somewhat fleshy, compressed- 

 tetragonal, naked. — Scabrous shrubs, often scandent ; leaves opposite, serrate, petioled : in- 

 ferior vein-pairs mA)re approximate to the leaf-base; heads peduncled, axillary and ter- 

 minal, ternate or solitary, yellow. 



101. AV. stenoglossa, DC. Branches subtetragonal j leaves ovate-lanceolate or 

 ovate, acuminate, shortly cuneate at the base, minutely hispidulous ; involucre appressei; 

 exterior scales ovate-lanceolate, bluntish, about half as long as the ray ; palese mucronate 

 at the incurved top, oblong. — W. capitata, Schultz Sip. I Tilesia capitata, Mey. Ess. I — 

 Leaves 6"-4" long ; heads l" diam. ; exterior scales of the involucre 4'" long.. — Hab. Do- 

 minica I, Imr., S. Vincent !, Guild.; Trinidad 1, ^cA. ; [Guiana I to Peru!]. 



102. W. havanensis, DC, Branches Bub-6-gonal j leaves ovate-oblong or ovate- 



