AvcvusT 16, 1906] MANUAL OF THE PHILIPPINE COMPOSITAE 129 
with lyrately pinnatifid leaves, the lobes rounded. Heads 
usually solitary, leaf opposed, upon recurved peduncles. Bracts 
of the involucre obtuse, pubescent, thin and strongly retic- 
ulate above the middle; corolla tubes slender, the outer 
ones bifid, the inner ones 2 to 4-segmented, the central 4 
to 6-cleft; achenes compressed, smooth, the pappus hairs fine, 
united at the base into a persistent cupular ring. 
DISTRIBUTION: 
Tropical Africa, Asia and Japan. 
Luzon: 
Arayat, Province of Pampanga, March 1903, Merrill 
1471. 
Manila, April 1902, Merrill 26. 
12. MYRIACTIS LESS. 
Erect annuals. Leaves alternate, toothed. Heads loosely 
panicled or solitary, homogamous, white, with a yellow disk; 
ray flowers 2 to many seriate; pistillate fertile, small, ligulate; 
ligules spreading or revolute; disk flowers 5-segmented, tubular, 
perfect; involucre semispheric; bracts few seriate, narrow, 
scariously margined; receptacle broad, convex, naked; anther 
bases obtuse; style arms of perfect flowers narrow, flattened, 
with lanceolate tips; achenes compressed, margined; pappus 
none. 
Species 2 to 5; one in the Philippines, the others in Asia 
and Africa. 
1. M. humilis Merr. in Philip. Journ. Sci. 1, Suppl. 3; 234, 
1906.—Erect or decumbent herbs with many divaricate 
branches, 1 to 2 dm. high, the stems and branches strig- 
ose but soon becoming glabrous. Leaves chiefly from the 
basal portion of the stems and branches; membranous blades 
usually alternate or branch opposed, sparsely strigose on both 
sides, ovate in outline, 1 to 3-lobed, the terminal lobe usually 
largest and coarsely dentate; petioles slender, 1 to 3 cm. 
long. Heads solitary, upon slender peduncles, terminal or 
axillary, subtended by small bracts a trifle below the base 
of the head, 8 mm. in diameter, 6 mm. high; involucral 
bracts all equal, numerous, 4 mm. long, with thin margins, 
