Melanthera| LXXI. COMPOSIT#. 581 
BARRA DE BENGO.—In swampy places by the river Bengo; fl. and 
fr. Dec. 1853. No. 3544. 
GotunGo Attro.—By thickets and in the less dense forests ; roadway 
near Menha-Lula; fl. and fr. July 1855. No. 3545. - In bushy 
wooded parts of Sobato de Mussengue; fl. andfr. May 1856. No. 3546. 
MossaAMEDES.—Florets golden-yellow. In sandy thickets at the 
river Bero; fl. July 1859. The ovary of the disk-florets is more 
rounded than in the three previous Nos, No. 3548. 
3. M. monocheta Hiern, sp. n. 
A scabrid herb, more or less branched, 1 to 33 ft. high, 
apparently annual; stems angular, sulcate, pallid, suberect or 
subscandent and loosely rambling among shrubs, mostly dichoto- 
mous ; branches opposite or alternate; leaves ovate or the upper 
ones lanceolate, acuminate or pointed at the apex, obtuse or more 
or less wedge-shaped at the base, opposite or sub-opposite or the 
upper ones alternate, membranous, dark green in the dried state, 
above rough and scattered with whitish deciduous short strigose- 
hispid hairs, paler sometimes sublepidote and similarly strigose- 
hispid beneath, unequally serrate-dentate, occasionally lobulate at 
or near the base, 2 to 4 in. long by 1+ to 23 in. broad; petioles 
ranging up to + or # in. long, hispidulous ; capitula heterogamous, 
radiate, subhemispherical, + to 3 in. long, on hispidulous peduncles 
ranging up to about 3 in., terminal and subterminal, together 
forming broad rather lax terminal leafy cymes; involucral scales 
free to the base, rather loosely imbricate, sub-biseriate, the outer 
ones lanceolate-oblong, foliaceous, entire, obtusely pointed, hairy 
on the back, about } in. long, nearly flat ; the inner ones rather 
narrower, more acute, nearly as long and less foliaceous ; flowers 
homochromous, yellow; ray-florets ligulate, female, fertile, sub- 
uniseriate, + in. long; the ligule oval, 2 in. long by 4 in. broad, 
marked with several slender nerves, minutely trifid at the apex, 
the ovary compressed, puberulous, subtruncate, on one side 
furnished with an arista; disk-florets multiseriate, hermaphrodite, 
4 or nearly + in. long (including the exserted style); the corolla 
about + in. long, tubular, shortly 5-lobed ; anthers about equalling 
the corolla-lobes, style slightly thickened upwards to its appendage 
at the apex, ecaudate and obtuse at the base, branching ; style- 
branches somewhat compressed, with an ovate appendage ; ovary 
as in the ray-florets but rather larger; achenes 4 in. long, 
obpyramidal-oblong, 3- or 4-gonal, muriculate verrucose or nearly 
smooth, turning dusky, truncate and hispidulous at the apex with 
the remains of the nectary in the centre; pappus consisting of a 
single caducous scabrid arista, the points of attachment of which 
for the several florets form a spiral arch; receptacle convex, 
furnished with palee; the palez folded and embracing the florets, 
about =3, to + in. long, dry, subscarious, obovate and whitish 
below, acuminate and yellowish above, hairy along the line of fold 
at the back, ciliate along the upper half, marked with several 
parallel longitudinal lines, persistent. 
Loanpa.—An annual, subscandent herb. In thickets near Quicuxe ; 
