Tardavel] LX1X, RUBIACEA. 503 
46. TARDAVEL Adans. Fam. Pl. ii, p. 145 (1763). 
Borreria G. F. W. Meyer, Prim. Fl. Esseq. p. 79, t. 1 (1818); 
K. Schum. in Engl, & Prantl, Nat. PAlanzenfam., iv. 4, p. 143(1891). 
Spermacoce L, f.; Benth. & Hook. f. Gen. Pl. ii. p. 145, p.p.; non L. 
1. T. stricta. 
Spermacoce stricta L. f. Suppl. Pl. p. 120 (1781); Hiern in 
Oliv. Fl. Trop. Afr. iii, p. 236; non L. Herb. Borreria stricta 
DC. Prodr, iv. p. 561, non p. 541; K. Schum., Jc. ; non Mey. 
Pungo Anponco.—An erect herb, with purple stem and violet- 
coloured flowers. In moist pastures amongst dense herbage, near 
Muta Lucala, on the right bank of the river Cuanza; fl. and fr. 
March 1857. No. 3244. An annual, erect, branched herb ; stem and 
branches bright-purple ; flowers white, turning bluish ; corolla tetra- 
merous, with the limb obtusely lobed. In moist grassy places by 
the river Cuanza, very abundant ; fl. and fr.1 May 1857. No. 3245. 
An erect, annual, patently branched herb, with small yellowish flowers. 
In sandy wooded places between Bumba and Condo; fl. and fr. 
15 March 1857. A small form. No. 3233. In damp wooded places 
near Lombe ; fr. March 1857. No. 3219. Anerect, branched, annual 
herb, 3 to 4 ft. high, with whitish-violet-coloured fugacious flowers. 
In herbaceous nearly dried up parts of the lake near Quibande ; 
fr. March 1857. No. 3220. 
All these Nos. are doubtfully referred to this species, the type of 
which I have not seen. The two first Nos. are clothed with horny , 
hairs on the upper part, and the last two have their stems smooth and 
their leaves also glabrous. 
2. T. huillensis Hiern, sp. n. 
An annual, erect or diffuse, much branched, hispid herb, 4 to 12 
in. high ; stems tetragonal, branched from the base; branches 
sub-erect or ascending, reddish below, green and hirsute-hispid or 
scabrid with whitish hairs above; leaves narrowly lanceolate or 
sub-linear, gradually somewhat narrowed towards both ends, obtuse 
and apiculate at the apex, sessile and adnate to the stipules at 
the base, more or less. spreading, rigid, pale-green on both faces, 
seabrid with short stiff whitish hairs above or glabrous, scabrid 
more densely beneath or the hairiness limited to the midrib; 
margins whitish, more or less revolute towards the midrib ; lateral 
veins few, slender, inconspicuous or obsolete; stipules adnate to 
the leaf-bases and so sheathing, hirsute-hispid at the back or 
obsoletely so, glabrous and shining inside, truncate, short, with 
several glabrous subulate or filiform sometimes reddish sete at the 
apex ; flowers white or slightly purplish, axillary, sessile, 4 to 3 in. 
long, crowded many together in axillary and terminal sessile 
subglobose bracteolate heads 3 to 4 in. long; bracteoles sub- 
acicular, about equalling the calyx or shorter ; calyx about } in. 
long, green ; the limb 2 in. long, somewhat hairy outside, glabrous 
inside, ciliolate, 4-partite; the segments lanceolate-linear, sub- 
equal, acute; corolla sub-salvershaped, milk-white or slightly 
purplish, glabrous except the ciliolate tips of the lobes, } to 3 in. 
long ; the tube 2 to + in. long ; lobes 4, ovate, ciliolate about the 
apex, valvate in the bud ; stamens 4, glabrous ; anthers exserted, 
