Ceruana.] lxxtii. composite (Oliver and hiern). 305 



baceons, outer often leafy. Receptacle flat, tubercled, paleaceous, 

 paleas coriaceous linear exceeding the ovaries. Corolla of $ fl. nar- 

 row-tubular, mouth obliquely toothed or with a rudimentary ligule ; 

 of 5 fl- campanulate narrowed into tube. Anther-base obtuse entire. 

 Style- branches with lanceolate acute papillose appendices. Achenes 

 compressed or obscurely angled, crowned with a minute papillose- 

 setiform annulus. — Erect rigid herb. Leaves alternate toothed or 

 pinnatifid. Capitula erect, cymose, yellow. 

 Based upon the following species. 



1. C. pratensis, ForsJc. ; DC. Prodr. v. p. 488. Erect branched 

 hirsute or pubescent annual, 1-2 ft. high; stem strict or ascending; 

 branches terete faintly striate. Leaves obovate, rounded at apex, 

 pinnatifid or coarsely toothed, hairy on both sides, more or less nar- 

 rowed to a clasping sessile often auricled base, or petiolate, lower 

 1^2^ in. long ; upper shorter, sometimes lyrate or subentire. Capitula 

 ^-^ in. diameter, subsessile or on peduncles varying to 2 in., terminal 

 and leaf-opposed along the branches of dichotomous cymes, surrounded 

 at or near the base by 2 or more bracts equalling or overtopping the 

 heads. Scales of involucre herbaceous unequal ; outer rather exceed- 

 ing the disk, uni-biseriate, erect, hairy, lanceolate, acute ; inner about 

 equalling the disk, coriaceous, linear-oblong, acute. Paleee of recep- 

 tacle fimbriate-ciliate at base, slightly dilated above, exceeding ovaries. 

 Ray fl. 2-3-seriate. Achenes glabrous. Pappus minute, papillose- 

 setiform. — C. rotundifolia, Cass. Diet. xli. p. 128 ; C. senegalensis, DC. 

 I.e. ; Buphthahnum pratense, Vahl Symb. i. p. 75. 



Vpper Guinea. Senegambia, Perrottet ! 423; Niger, Barter! 

 Nile Xiand. Chart oom, Blue Nile, Upper Nubia. 2>r. Kotsch/! Dr. Brom field ! 

 Sennaar. Brocchi ; Cordofan ex Aschers. & Schweinf. Enum. p. 284. 

 Occurs also in Egypt. 



17. BRACHYCOME, Cass. ; Benth. et Hook. f. Gen. PI. ii. p. 2C4. 



Capitula heterogamous radiate ; ray-fl. 1-seriate, disk-fl. oo herma- 

 phrodite tubular. Involucre broadly campanulate or patelliform, 

 scales subbiseriate. Receptacle conical naked. Corolla of ray-fl. 

 ligulate, white or purplish, spreading or recurved in the following 

 species, much exceeding the involucre. Anther-base obtuse entire. 

 Style-branches with shortly ovate or deltoid appendices. Achenes 

 slightly compressed; pappus (or short paleaceous). — Erect or as- 

 cending herbs with single-headed scapes, or branching. Leaves alter- 

 nate, radical or cauline (entire) toothed or pinnatifid. Caj>itula 

 usually small or of medium size, pedunculate. 



A considerable genus, chiefly Australasian. 



1. B. mossambicensls, 0. ^' II. Decumbent or ascending 

 herb, \-\ ft. high, branching from the base, more or less hirsute with 

 spreading hairs. Leaves oblong or oblanceolate, pinnatifid with oblong 

 or lanceolate lobes or coarsely toothed, acute or obtusely pointed, 

 more or less attenuate to a clasping base, lower from 1^-3 in. long, 

 petiolate, upper shorter. Capitula hemispherical, many-flowered, 



VOL. III. 



