174 COMPOSITE. [Boltunia. 



me. The latter (including C. ciliata, A. Gray) have the setose pappus of Aster, although 

 short, and should all perhaps be reunited with that genus. 



1. B. indica, BentJi. Eoot-stock slender and creeping, or perhaps an- 

 nually reneAved by stolones. Stem 1 to \\ ft. high, divaricately branched, 

 somewhat scabrous. Leaves oblong-lanceolate, mostly entii'e and smaU, the 

 lower ones often broader, with a few coarse or small and glandular teeth. Heads 

 terminatmg the slender leafy branches. Involucres about 3 lines diameter ; 

 the bracts rather broad, in 2 or 3 rows, with slightly herbaceous tips. Pappus- 

 scales very minute, slightly connected at the base, aU aristate ; the 2 or 3 

 longest sometimes half the breadth of the achenes. — Asteromaa indica, Blume ; 

 DC. Prod. V. 303; Miq. PI. Ned. Ind. ii. 29. Hisutsua cantonieusis, DC. 

 Prod. vi. 44. Hisutsua serrata. Hook, et Am. Bot. Beech, p. 265. 



Hongkong, Hance. Apparently common about Canton, and extending to Loochoo in the 

 north and Java in the south, but in some instances said to be introduced. I do not find, 

 even in the Java specimens, the achenes 4-angled as described by Miquel, nor the scales of 

 the pappus setaceo-multifid as described by DC. and others. That can only be said of the 

 pappus taken as a whole. 



11. ASTER, Linn. 



Plower-heads heterogamous. Plorets of the ray ligulate, in a single series, 

 spreading, not yellow. Disk-flowers numerous, hermaphrodite. Involucral 

 bracts imbricated, in 2 or more series. Receptacle flat, usually honeycombed, 

 but not chaffy. Achenes usually compressed. Pappus of numerous, often 

 unequal, scabrous capillary bristles. — Herbs mostly perennial. Leaves alter- 

 nate or radical. Heads corymbose or paniculate, rarely racemose or solitary. 

 Eay white, purple, or blue. 



A considerable genus, widely distributed over the northern hemisphere, especially abundant 

 in North America, and extending also into the hilly or temperate regions of the southern 

 hemisphere. 



Flower-heads hemispherical, on peduncles as long or longer than them- 

 selves. 



Heads simple, on long peduncles. Involucral bracts acute . . . \. A. striatus. 



Heads corymbose. Involucral bracts obtuse 2. A. trinervius. 



Mower-heads turbinate-campauulate, nearly sessile. 



Involucral bracts acute Z. A. hrevipes. 



Involucral bracts obtuse 4.-4. baccharoides. 



1. A. striatus, Cliamp. in Kew Journ. Bot. iv. 233. Stock perennial. 

 Radical leaves obovate or oblong, 1^ in. long, contracted into a stalk at 

 the base, sprinkled with a few long hairs. Stems divaricately branched, 

 scarcely a foot long, rough with short spreading hairs. Stem-leaves few, 

 narrow, and mostly stem-clasping and erect. Plower-heads hemispherical, 

 few, on long peduncles, forming an irregular spreading panicle. Involucral 

 bracts acute, thin on the edge, in about 2 or 3 series. Style-appendages rather 

 broad. Achenes hairy. Pappus-bristles nearly equal. — BoUhujeria triclio- 

 carpa, DC. Prod. v. 263. 



Hongkong, Champion, Wright ; and on the adjacent continent. Not known out of S. China. 

 Its nearest ally is perhaps A. altaicus, Willd., which has not been found nearer than Amoy. 



2. A. trinervius, Roxb. ; Bon, Prod. Ft. Nep. p. in. Stock peren- 

 nial. Stems erect, 1 to 3 feet. Leaves ovate to obovate or oblong, acute. 



