264 LXXII. COMPOSITE (OLIVER AND HipRN).  [Gutenbergia. 
amplexicaul, the lower ones narrowing to a sessile base. Capitula 
din, diam., on slender pedicels ranging up to 2 in., in a diffuse corym- 
bose cyme. Involucral scales lanceolate acutely acuminate, thinly 
cottony ; the outer ones narrower and shorter. Achenes 8-10-ribbed. 
Mozamb. Distr. At Tette, Peters! ‘ 
3. G@. nigritana, 0. § H. Erect branching herb of probably 
2-8 ft.; branches crisped-puberulous or thinly hirsute above, striae. 
Leaves oval-oblong, acute or broadly pointed, more or less obtuse at 
base, subsessile or very shortly petiolate, remotely denticulate, sparsely 
hairy often scabrid at length glabrate above, pubescent or subtomen- 
tose beneath, varying up to 3-4 in. long. Capitula oo-flowered parple 
nearly 4 in. diam. on peduncles varying to 2 in. the central often sub- 
sessile, in irregular ascending dichotomous paniculate cymes ; involu- 
cral scales ascending subappressed, outer and median lanceolate very 
acute rigid, inner nearly equalling the florets more broadly pointed or 
obtuse, glabrate or cottony. Achenes columnar equally or subequally 
and strongly 10-costate.— Ocospermumnigritanwm, Benth. FI. Nigrit. 425. 
Upper Guinea. Niger-land, 72. Vogel! Barter! Abbeokuta, Jrving! 
Var. scabra. Leaves scabrid, hirsute-tomentose beneath, heads cottony, Yomba, 
Niger, Barter! 
4. G.? macrocephala, 0. § H. Erect herb of probably 
2-4 ft. with terete striate thinly pubescent ascending branches. 
Leaves alternate ovate- or lanceolate-oblong acute subentire rugulose- 
scabrous above, reticulate and pubescent beneath, varying to 4-5 1 
long by 1 in. or more broad; petioles (of upper leaves) very pes 
Capitula many-flowered hemispherical, 3-1 in. diam. singly termina’ 
ing numerous long erect striate pubescent peduncles, forming 4 lax 
cymose panicle ; scales of involucre multi-seriate scarious loosely aPp- 
pressed denticulate nearly glabrous ; outer obovate broadly rounded an 
mucronate above, inner linear. spathulate and sharply acuminate abor. 
Receptacle naked. Achenes columnar terete slightly curved strong!y 
10-costate glabrous, callus-based. 
Upper Guinea. Abbeokuta, Irving ! 
5. @. polycephala, 0. § H. in Journ. Linn. Soc. Lond. eg 
95 (1876). Erect branching more or less hoary-tomentose her i 
stem terete striate thinly tomentose. Upper leaves sessile, lanceolate © 
ovate-lanceolate, 1-2 in. long, from an obtuse or cordate-amplexsih™ 
base, entire or subentire, glabrescent or scaberulous above, whits . 
tomentose beneath. Capitula small in diffuse cymose panicles, © 
slender peduncles varying to 4-3 in. Involucral scales appr : 
pauciseriate, outer shorter linear-lanceolate, inner oval-oblong 
3-nerved, acute or at length weathered and obtuse. Achenes. ager y 
longitudinally and subequally 10-12-costate, glabrous or with tht 
scattered short hairs. Cameron! 
South Central. With specimens from region of Lake Tanganyike, 
Mozamb. Distr. Kilwa and Monfia, Dr. Kirk! 
6. G. longipes, Sleetz in Peters Mossamb. Bot. 349. . Tall erect 
