Laggera | LXXI. COMPOSITA. 557 
smaller capitula and narrower leaves than in the common one. No. 3900. 
A strict herb, 24 to 4 ft. high ; leaves in the living state glaucescent- 
green, rather rigid and spreading, rough ; flowers reddish. In the less 
dense wooded elevated parts of the Queta mountains, rather rare ; fl. 
and fr. middle of May 1856. No. 3901. An erect annual herb, 1 to 
33 ft. high, with nodding capitula and rosy flowers. In moist places at 
the outskirts of forests about Sange and Bango, abundant ; fl. and fr. 
July 1855. No. 3902. 
4, L, brevipes O. & H. in Oliv. Fl. Trop. Afr. iii. p, 327. 
AmpBaca.—A robust, dichotomously branched herb, 4 to 43 ft. high, 
with reddish flowers. In bushy places on the left bank of the Caringa 
stream ; fl. and fr. June 1855. No. 3905. 
GoLunco AxTo.—A tall biennial or triennial herb, 4 to 5 ft. high, 
branched from the base, the whole plant pleasantly aromatic almost 
like Melissa officinalis L. In moist places along the banks of the river 
Coango by the lower thickets, not abundant ; fl. not fully developed at 
the beginning of June 1856; fl. Aug. No. 3904. 
Huiiia.—A bright-green annual or biennial herb, 3 to 4 ft. high or 
exceptionally 6 ft. ; flowers purplish. In hilly places among rather tall 
bushes along the Catumba forests ; fl. April1860. Used as a medicinal 
plant by the negroes. No. 3903. 
23. PLUCHEA Cass. in Bull. Soc. Philom., (Feb.) 1817, p. 31; 
Benth. & Hook. f. Gen. Pl. ii. p. 290. Gynema Rafin. Fl. Ludov. 
p. 63 (1817). 
1. P. ovalis DC. Prodr. v. p. 450 (1836); O. & H. in Oliv. FI. 
Trop. Afr. iii. p. 328; O. Hoffm. in Bol. Soc. Brot. xiii. p. 23. 
Bumso.—A melancholy shrub, 3 to 4 ft. high ; branches erect- 
spreading, downy, winged with the decurrent leaves ; flowers yellow. 
In sunny rocky places scattered with trees, above Bumbo, in the ascent 
of the mountains of Serra da Chella, at an elevation of 2500 to 3000 ft. ; 
fl. and young fr. Oct. 1859. No. 3434. 
2. P. Dioscoridis DC., U.c.; O. & H., Lc., p. 329. 
Baccharis dioscoridis L. Cent. Pl. i. p. 27, n. 80 (1755), cf. 
Conyza odora ? Forsk. Fl. Aigypt. pp. lxxiii, 148 (1775). 
Ampriz,—A suffrutescent herb or even shrubby, with several stems, 
attaining 5 ft. in height, shortly branched towards the apex, remarkably 
and very agreeably aromatic ; capitula heterogamous, many-flowered ; 
the florets of the outer rows female, filiform, with truncate or more 
frequently tridentate ligules ; the central florets few, hermaphrodite ; 
anthers with acute rather long tails at the base ; achenes cylindrical, 
sulcate ; pappus uniseriate, rather livid, not scabrous. Heights of 
Ambriz ; fl. and fr. Nov. 1853. The true “ Quitoco” of the negroes. 
No. 3927. 
IcoLo E BENGo.—A shrub of 4 to 6 ft., rarely higher, branched from 
the base ; branchesand branchlets patent ; leaves rather limp, aromatic ; 
flowers violet-rosy ; styles of the central florets thick, rather bristly, 
their branches often cohering. In bushy places flooded in summer by 
the river Bengo, from Prata as far as Tandambondo, abundant ; fl. and 
fr. Sept. 1857. It appears that the Quitoco occurring in the coast 
region is a different plant. No. 3926. 
Loanpa.—Calumbo; fl. and fr. April 1858. Called “ Quitoco 
pequeno,” that is, small Quitoco ; believed to be the plant used there 
