322 LXXITI. COMPOSITH (OLIVER AND HIERN). [ Blumea. 
26. BLUMEA, DC.; Benth. et Hook. f. Gen. Pl. ii. p. 289. 
Capitula heterogamous, many-flowered, disciform ; outer florets ? 
numerous, filiform; disk-florets hermaphrodite or sterile. Involucre 
hemispherical or campanulate ; scales pauci- or pluriseriate, usually 
scarcely rigid, narrow-linear; outer shorter. Receptacle naked. Co- 
rolla of 2 fl. tubular, filiform ; ligule 0 or rudimentary; of inner fl. 
tubular, 5-toothed. Anther-base tailed. Style-branches narrow- 
linear. Achenes subterete or angular, with basal callus; pappus unl- 
seriate, setiform.—Herbs. Leaves alternate from linear to elliptical or 
obovate, entire toothed or pinnatifid, often villous or pubescent. Ca- 
pitula usually hairy in corymbose or congested panicles. 
A large weedy genus of the Old World Tropics. ; 
Leaves auricled, often interruptedly decurrent . . . . ... I. B. aurita. 
Leaves not auricled nor decurrent. 
Softly pubescent at least above. Leaves obovate, attenuate at 
base. 2. 2. 1... ce ee ee 2. B. lacera. 
Glabrous or puberulous. Leaves linear or oblanceolate, upper _ 
rounded and clasping at base 2 eee ee 8B, abyssinica. 
1. B. aurita, DO. Prodr. v. p. 449. Pubescent or loosely pilose 
erect herb of 14-3 ft.; branches striate, leafy. Leaves alternate, mem- 
branous ; radical obovate or elliptical, unequally broadly toothed or 
pinnatifid toward the winged petiole ; cauline obovate-oblong or oblong; 
deeply toothed or pinnatifid or lyrate-pinnatipartite, acute or obtuse, 
sessile and auricled at the base, often interruptedly decurrent in 4 
double series of spreading lobes; 14-44 in. long. Capitula cam pant 
late, 3-4 in. diam., oo-flowered on unequal pedicels varying to 1; » 
long, in wide corymbose or diffuse terminal panicles. Scales of invo- 
lucre pluriseriate, narrowly linear-lanceolate, acutely acuminate ; outer 
ones loose, shorter, densely hirsute with white spreading hairs. ° 
ceptacle naked. Ray-florets filiform ; ligule 0. Anthers tailed at base, 
tips ovate-oblong, obtuse. Achenes thinly pilose, obscurely angule 
with small perforated callus. Pappus uniseriate, thin, white—° 
guineensis, DC. 1. c. excl. var. Erigeron stipulatum, Schum. et Thonn. 
Guin. Pl. 385. Conyza argentea, Perr. et Lepr. ex DC. 1. ¢. 0. ee 
neensis, Willd. sp. pl. iti. 1980. Pluchea Kotschy, Schultz Bip. : bh 
Hb. Kotsch. Nubic. n. 345. Laggera aurita, Schultz Bip. 1 Hp, 
Schimp. Abyss. sect. iii. n. 1769. ‘us! 
Upper Guinea. Senegambia, Leprieur / Niger, Baikie ! Sierra Leone, Af 
Wile Land. Abyssinia, Schimper! Hildebrandt! Sennaar, Kotschy ! NU 
Kotschy ! Mittu-land, Schweinfurth ! White Nile, Petherick! Schweinfurth ! 
Occurs also in Egypt, Arabia, Cape Verde Islands, Scinde and India. 
2. B. lacera, DO. Prodr. v. 436. Erect or ascending herb, softly 
pubescent or in some forms glabrate below, 4-4 ft. high ; stem a 
branches terete, faintly striate. Leaves alternate, obovate or aan 
late, obtuse, attenuate into the slender petiole, membranous, 5° cng 
puberulous or glabrescent, dentate or denticulate, 1-5 in. long; ij ra 
broad ; lower petioles ranging to 2 in. in length. Capitula pu'P, a: 
widely campanulate, }-4 in. diam., o-flowered, on unequal pedice 
