COMPOSITAE 475 



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.S 

 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 cm or more in diameter, composed of numerous 

 Tovfs 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. CORONAKiUM 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. EN HYDRA 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 Jiear water.") 



Species about 6, tropical and subtropical, 1 in the Philippines. 



1. E. fluctuans Lour. 



A prostrate, spreading, annual herb, the stems somewhat fleshy, SO 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 

 campaiiulate, the bracts few, 2-seriate, the outer ones.broad, the receptacle 



