40 LXXI. COMrOSlT.T. 



Porbantlai- (Tvatliiawar), Coolce ! — Distrib, India (W. Himalaya, Paujab, W. Penin- 

 sula) ; Tropical Africa. 



31. BLAINVILLEA, Cass. 



Erect branched scabrid or villous herbs. Leaves opposite or the 

 upper alternate, petiolate. Heads small, subsessile or peduncled, ter- 

 minal or axillary, beterogamous, rayed or subdisciform, yellow ; ray- 

 flowers 2 , fertile, 1-2-seriate ; disk-flowers ^ , fertile. Involucre 

 ovoid-campanulate or at length subglobose ; bracts few, slightly un- 

 equal, the exterior herbaceous, the inner passing into the paleaj of the 

 receptacle. Receptacle small, subconvex, furnished with rigidly mem- 

 branous folded or concave palese. Corollas of 5 flowers either ligulate 

 with small spreading ligules 2-3-toothed, or slender with a short irre- 

 gularly or subregularly 2-3-fid limb ; corollas of g flowers regular, 

 tubular, with an enlarged or campanulate shortly 5-fid limb. Anther- 

 bases obtuse, entire. Style-arms of ^ flowers narrow, flattened, with 

 acute or subobtuse appendages. Pappus of 2-5 unequal (sometimes 

 subpaleaceous) bristles connate at the base. Achenes truncate, those of 

 the ray triquetrous or dorsally compressed, those of the disk laterally 

 compressed or obtusely 3-4-angled, — Disteib. Tropical regions of the 

 whole world ; species about 10. 



1. Blainvillea rhomboidea, Cass, in Diet. Sc. Nat. v. 29 (1823) 

 p. 494. Annual, 1-2 ft. high, hispidly hairy. Stem striate, subterete ; 

 branches numerous, ascending, scabrous. Leaves If -3 by 1-2 in., 

 ovate or ovate-lanceolate, alternate or opposite, acute, creuate-serrate, 

 hispidly hairy, 3-nerved, base cuneate ; petioles ^-| in. long, hairy. 

 Heads ^-| in. in diam., in erect terminal cymes ; peduncles variable in 

 length, slender, hairy. Outer invol. -bracts herbaceous, ovate-oblong, 

 subacute, pubescent ; inner slightly larger, passing into the palea? of the 

 receptacle, subscarious, rigid, broadly oblong, pectinate at the truncate 

 apex, longitudinally striate with green nerves, pubescent, persistent 

 after the fall of the fruit. Ray-flowers very short and inconspicuous ; 

 ligules yellow or whitish, bifid. Pappus of a few unequal acute scales, 

 rarely short bristles. Achenes of the ray cuneiform, triquetrous, slightly 

 curved, g in. long ; achenes of the disk triquetrous or compressed, 

 cuneiform, pubescent, nearly straight, -^ in. long. Jackson, in Index 

 Kewen. v, 1, p. 310. Blainvillea latifolia, DC. in Wight, Contrib. 

 (1834) p. 17; Dalz. & Gibs. p. 127 ; Hook. f. PI. B. L v. 3, p. 305; 

 C. B. Clarke, Comp. Ind. p. 135; Trim. PI. Ceyl. v. 3, p. 37; Woodr. 

 in Journ. Bomb. Nat. v. 11 (1898) p. 649 ; Aitch. Pb. & Sind PI. p. 75. 

 — Plowers : Aug.-Sept. 



Dkccan: Pooua, Coo/ic\, IVoodivw]; EowcUian jungles 10 miles W. of Pooua, 

 Kanitkar\ Sind: Stocks b-s. Aitch. — Distiub. Tlirougliout the greater part of India; 

 Ceylon, Java, Africa, America, and Australia. 



32. \VEDELIA, J acq. 



ll<^i'bs or uudershrubs, scabrid-j)ubes(.'eiit or liirsute. Leaves opposite, 

 usually toothed. Heads axillary or tern)inal, heterogaiiious, rayed, 

 yellow; ray-flowers $, fertile ; disk-flowers ^, fertile or the inner 

 sterile. Involucre ovoid, campanulate, or subhemispheric ; bracts sub- 



