166 LEAFLETS OF PHILIPPINE BOTANY [Vor. I, ART.7 
Hook. Fl. Brit. Ind. 3; 306, 1881. Ceron Cat. Pl. Herb. 102, 
1892.—A widely dispersed old world species, with rigid stems. 
Leaves hispid, petioled, the lower opposite, the upper alter- 
nate, ovate, 3-nerved, crenately serrate. Heads peduncled; 
ligules yellowish white; bracts oblong, obtuse and rigid; ache- 
nes of the outer flowers triquetrous, somewhat curved. 
We are somewhat in doubt as to the identity of Walper’s 
specimen cited from Manila. B. rhomboidea Cass. is a weed, 
dispersed throughout the tropics of America, Africa, Asia and 
Australia, and much resembles the genus Eclipta. 
34. WEDELIA JACQ. 1 
Herbs or undershrubs, hirsute or scabrous, with opposite 
leaves. Heads heterogamous, axillary or terminal, yellow; 
ray flowers pistillate and fertile; disk flowers perfect, fertile y 
or the innermost sterile, tubular and 5-segmented; involuc- 
ral bracts in 2 series, outer 3 to 5, usually foliaceous, the 
inner ones dry; receptacle flat or convex; anther bases sub- 
entire; style arms of central flowers with acute hairy tips; 
achenes cuneate to oblong, thick, smooth or tubercled; pappus 
none, or sometimes with a few short scales or bristles. 
Species 50 to 60; tropical and subtropical of both 
the eastern and western hemispheres. 
1. W. biflora DC. in Wight Contrib. 18, 1840-56. 
Benth. Fl. Austr. 3; 539,1866: Fl. Hongk. Suppl. 20, 1872. 
F. Vil. Nov. App. 117, 1880, Hook. Fl. Brit. Ind. 3; 306, 
1881. Mart. in Nuov. Giorn. Bot. Ital. 15; 296, 1883. Ceron 
Cat. Pl. Herb. 102, 1892. Forbes and Hemsl. in Journ. 
Linn. Soc. Bot. 23; 433, 1888. Merr. Govt. Lab. Publ. 27; 55, 
1905. Hayata in Journ. Coll. Sci. Tokyo 18; Art. 8, 19, 1904. 
Wallastonia biflora DC. Prod. 5; 546, 1836. Mig. Fl. Ind Bat. 
2; 70, 1856. Benth. Fl. Hongk. 183, 1861. King and Gamb. 
Mat. Fl. Malay. Penin. 16; 42, 1905. W. calendulacea Less. 
in F. Vil. Nov. App. 117, 1880. Spilanthes peregrina — Bleo. 
Fl. Filip. ed. 1; 622, 1837. Stemmodontia biflora Linn. in 
Contr. Nat. Herb. 9; 337, 1905.—Sprawling or subscandent 
herbs. Leaves opposite long petioled, ovate, acuminate, 
dentate, 3 to 5-nerved from near the base, strigose especially a 
on the under surface. Heads upon axillary or terminal 
