394 LXXIII. COMPOSITE (OLIVER AND HIERN). [ Bidens. 
segments or simply trifid, ovate in outline, upper ones mostly 3-6 in, 
long including the petiole of 4-3 in.; lobes oval or the terminal one 
lanceolate, incise-dentate, mostly obtuse with an apiculate callus at 
the apex, usually scattered with blackish dots. Capitula 3-4 in. dia- 
meter in flower, lengthening in fruit and widening upwards, on pe- 
duncles or pedicels of 14-6 in., in a lax open corymbose cyme. Outs’ 
involucral bracts linear-spathulate, obtuse, pilose, }-# in. long, exceed- 
ing the inner oblong coloured ones. Ligule of the ray-florets yelow 
4 in. long. Achenesmuch compressed, striate, somewhat narrowed @ 
the truncate apex, }-4 in. long, with 2 or according to Schultz . 
times 3 suberect or spreading retrorsely barbed rigid sete, often tuber- 
culate.—B. Buchingeri, Schultz Bip. ex Schweinf. Beitr. Fi. Aithiop. 
p. 142. 
Mile Land. Abyssinia, Schimper! alt. 5-6000 ft.; Suakin to Hor Tamanib, 
Red Sea, Lord ! ; 
Mozamb. Distr. Rios de Sena, Peters! Lupata, Kirk! 
_ 5, B. Mneariloba, Oliv. in Trans. Linn. Soc. Lond. xxix. P. a 
t. 60. An erect glabrous herb, 14-24 ft. high, simple up yas 
branches of the inflorescence. Stem sulcate. Leaves bipinnatipa “oles 
1344 in. long, segments narrowly linear, some 1 in. long; petio of 
short, dilated, amplexicaul, somewhat ciliate. Capitula exclusive oF 
the rays nearly 1 in. diameter, inclusive 2 in., solitary on pasa 
peduncle 44 in. long and on shorter pedicels, forming small rire i 
minating the lateral branches. Outer involucral bracts about 10, ¥ and 
narrowly lanceolate, attenuate, more or less hispid-ciliate, lax, 8 us 
long, rather longer than the broader coloured alternating ata 
inner ones. Ligule of the pay-florets elliptic-obovate, yellow. vt ry 
compressed, glabrous, indistinctly striate, truncate at apex, 1pp 1 
with 2 erect retrorsely barbed sete. Fruit not seen.—Verbesina, D- % 
T. Thoms. in Speke Journ., App. p. 638. 
Wile Land. 4° 18'S. Lat., at Mininga, by cornfields, Speke and Grant! 
Bidens laciniata, Schultz Bip. in Schweinf. et Aschers. Enum, p. 283, from Sennaar, 
name only, is unknown to us, 
70. CHRYSANTHELLUM, Rich. ; Benth. et Hook. f, Gen. 
Pl. ii. p. 389. 
Capitula heterogamous radiate ; ray-florets ligulate usually smal 
Involucre campanulate or hemispherical, bracts 1-2-seriate, 80 a cle 
ovate or ovate-lanceolate, somewhat membranous. Scales of recep rate. 
oblong or linear obtuse plane persistent. - Anther-base eats. 
Style-branches subulate and papillose or setulose nearly from ag 0, 
Achenes oblong compressed, with a thick paler margin ; PaPP bifid 
or reduced to a minute epigynous disk.—Herbs, with alternate ™ 
leaves and small loosely cymose pedunculate capitula. 
A wide-spread genus of two or three species. 
