CARDUACEAE. 451 



at the top; pappus cup-like, toothed or divided, or obsolete. [Commemorates 

 George Wolfgang Wedel, 1645-1721, Professor at Jena.] About 50 species, of 

 warm-temperate and tropical regions. Type species: TVedelia fruticosa Jaeq. 



Herbaceous, prostrate with erect branches, nearly glabrous, some- 

 what fleshy. 1. W. trilobata. 

 Erect, shrubby, strigose-hairy. 2. W. bahamensis. 



1. Wedelia trilobata (L.) Hitchc. Eep. Mo. Bot. Gard. 4: 99. 1893. 



Silpkium trilobatum L. Syst. ed. 10, 1233. 1759. 

 Wedelia carnosa L. C. Rich, in Pers. Syn. 2: 490. 1807. 

 Stemmodontia trilobata Small, Fl. SE/u. S. -1262, 1340. 1903. 



Herbaceous, prostrate or with ascending branches, sparingly strigose- 

 pubescent, often rooting at the nodes, 3-10 dm. long. Leaves somewhat fleshy, 

 elliptic to obovate, 2-12 cm. long, obtuse or acute at the apex, dentate, often 

 s-everal-lobed, narrowed or cuneate at the base, triplinerved and pinnately 

 veined, sessile or nearly so; peduncles solitary in the upper axils, 2-14 cm. 

 long; involucre 7-12 mm. long, its bracts oblong-obovate, foliaceous; rays 

 about 10, bright yellow, 10-15 mm. long; achenes 5 mm. long, tuberculate. 



Moist places along the coast, New Providence : Florida ; West Indies ; Hon- 

 duras to Colombia. Trailing Wedelia. 



2. Wedelia bahamensis (Britton) O. E. Sehulz, in Urban, Symb. Ant. 7: 106. 



1911. 



Stemmodontia bahamensis Britton, Bull. X. Y. Bot. Gard 4: 126. 1905. 



Perennial, erect, densely strigose-pubeseent all over, pale green, 6-10 dm. 

 tall, the branches striate. Leaves lanceolate to ovate, 5-12 em. long, 1.5-3 cm. 

 wide, acute to long-acuminate at the apex, narrowed at the base, rather firm 

 in texture, sparingly low-serrate or entire, 3-nerved above the base, the short 

 stoutish petioles mostly not over 1 cm. long; heads solitary or 2 or 3 together, 

 on erect peduncles 2 or 3 cm. long; outer bracts of the involucre oblong to 

 ovate-oblong, apiculate or acutish, about 9 mm. long, faintly many-nerved, a 

 little longer than the inner; rays bright yellow, oblong, 1 cm. long or less, 

 emarginate, about 3 times as long as wide ; achenes linear, appressed-pubes- 

 cent, at least 3.5 mm. long. 



Coastal thickets, coppices and scrub lands, Andrns, New Providence and Eleu- 

 thera to Caicos and Grand Turk. Endemic. Recorded by Grisebach, Dolley and 

 Hitchcock as W. buphthalmoides Griseb. Bahama Wedelia. Rong-iu-sh. Erro- 

 neously called Marigold. Catesby, 1 : pi. 92. 



23. XIMENESIA Cav. Icon. 2: 60. 1793. 



Pubescent caulescent herbs, with alternate or sometimes opposite, simple, 

 toothed or somewhat laciniate leaves, and solitary or few, radiate showy 

 peduncled heads. Involucre rather flat, of narrow spreading bracts. Recep- 

 tacle convex, chaffy. Kay-flowers pistillate, fertile, numerous, the rays yellow. 

 Disk-flowers numerous, perfect, fertile. Anthers somewhat sagittate at the 

 base. Style-branches with slender pubescent appendages, Achenes flat, 

 winged. Pappus of short and straight awns. [In honor of Joseph Ximenes, 

 a Spanish botanist.] About ( sperms natives of America, the following typical. 



