COMPOSITAE AT5 
long, pinnately lobed, the lobes 2 or 3 on each side, ovate or oblong-ovate, 
sharply toothed. Heads yellow, peduncled, corymbosely panicled, 1.5 to 2.5 
cm in diameter. 
Cultivated only, fl. Jan.—Mar., and probably in other months. A native 
of China and Japan, now cultivated in most warm countries. 
*2. C. SINENSE Sabine. Manzanilla, Rosas de Japon (Sp.-Fil.). 
Similar to the preceding, but usually taller, the heads white or variously 
colored, with us up to 5 ecm or more in diameter, composed of numerous 
rows of ray-flowers. Perhaps only a form of the preceding developed by 
cultivation. ; 
Cultivated only, fl. Dec.—Feb., introduced from China or Japan. Culti- 
vated in all warm countries, exceedingly variable. 
*3. C. CORONARIUM L. T’ung hao (Chinese). 
An erect, glabrous, somewhat fleshy, slightly aromatic, branched, annual 
herb 50 cm high or less, the leaves auricled and clasping at the base, 10 
cm long or less, bipinnately parted, the lobes narrow, entire or toothed, 
thick, oblong to lanceolate, when fresh fleshy and brittle. Heads solitary, 
long-peduncled, terminating the branches, yellow, 2 to 3.5 cm in diameter. 
Cultivated by Chinese gardeners, fl. Feb—Apr. A native of the Medi- 
terranean regions, now cultivated in most warm countries, introduced in 
the Philippines from southern China. 
18. ENHYDRA Loureiro 
Spreading or ascending, branched, somewhat fleshy marsh-herbs with 
opposite, oblong to lanceolate, sessile, toothed leaves. Heads axillary, 
sessile, solitary. Involucral bracts 4, large, foliaceous, green, in 2 opposite 
pairs, longer than the heads. Ray-flowers male, in several series, the 
ligule very small, broad, 3- or 4-toothed. Disk-flowers perfect, fertile, or 
the innermost sterile, the limb tubular, 5-fid. Receptacle convex, the scales 
enclosing the flowers and achenes. Achenes oblong, compressed; pappus 
none. (Greek “growing in or near water.’’) : 
Species about 6, tropical and subtropical, 1 in the Philippines. 
1. E. fluctuans Lour. 
A prostrate, spreading, annual herb, the stems somewhat fleshy, 30 cm 
long or more, branched, rooting at the lower nodes, somewhat pubescent. 
Leaves sessile, linear-oblong, acute or obtuse, 3 to 5 cm long, base usually 
truncate, margins somewhat toothed. Heads solitary, axillary, sessile, the 
outer pair of involucral bracts 1 to 1.2 cm long, ovate, obtuse, the inner 
pair somewhat smaller, the heads, excluding the bracts, less than 1 cm in 
diameter, the flowers white or greenish-white. Achenes enclosed by the 
rigid receptacle-scales. 
In open marshy places, not common, fl. March-Apr., and probably in 
other months; of very local occurrence in the Philippines. India to China 
southward to Malaya. 
19. ECLIPTA Linnaeus 
Strigose or hirsute, erect or prostrate, slender or coarse, annual herbs. 
Leaves entire or toothed, opposite. Heads small, axillary and terminal, 
white, peduncled, heterogamous, rayed. Involucre green, ovoid to broadly 
campanulate, the bracts few, 2-seriate, the outer ones broad, the receptacle 
