Tardavel| LXIX. RUBIACEA. 505- 
several longer sete ; flowers in. long, numerous, sessile, crowded 
in terminal subterminal and axillary dense bracteolate clusters ; 
bracteoles narrowly linear, acute, ciliate, falling short of the 
calyx-limb; calyx % to } in. long, somewhat compressed; the 
tube ciliate when young; the limb 2 in. long, 2-lobed; the 
segments opposite, pubescent on the back, ciliate, equal linear- 
lanceolate ; corolla-tube very slender, 2 in. long, cylindrical, 
glabrous ; the lobes 4, hairy outside, ciliate near the apex, ovate, 
zo in. long, valvate in the bud; the throat glabrous; stamens 4, 
glabrous, nearly as long as the corolla-lobes, exserted; filaments 
longer than the oblong anthers ; style glabrous, filiform, reaching 
the anthers ; stigma small, capitate, papillose, obscurely bilobed ; 
fruit § in. long besides the two persistent calyx-lobes, dicoccous ; 
the cocci dehiscing from the apex. 
Pungo ANDONGO.—In neglected fields of Phaseolus, near Muta 
Lucala and Quisonde, abundant ; fl. and fr. March 1857. No. 32386. 
Houi11a.—No notes. Fl. Simple, or nearly so, 2 to 6 in. bigh ; 
flowers rather smaller. Probably a form of this species. No. 3227. 
This species differs from 7. scabra by its longer slender corolla-tube. 
6. T. aprica Hiern, sp. n. 
An erect or ascending, sub-scabrid, annual herb, 4 to 12 in. high ; 
simple or branched from the base; stem and alternate branches 
slender, often purplish, scabrid with whitish short hairs above ; 
upper branches few or lax; middle internodes mostly longer 
than the leaves, the lower and uppermost ones shorter; leaves 
opposite, linear or nearly so, acute or pointed and apiculate at the 
apex, slightly or scarcely narrowed, or in the case of the upper- 
most ones at the base of the inflorescence dilated at the base, 
sessile, glabrate or scattered with short stiff whitish hairs, rather 
rough, pale grey-green above, yellowish or purplish green 
beneath, sub-erect’ except the uppermost ones at the base of the 
inflorescence, 3 to 12 in. long, uni-nerved; the margins cartilagi- 
nous, thickened, a little rough ; stipules adnate to the bases of 
the leaves, sheathing, terminating in a few or several more or 
less prolonged sete, glabrous and shining inside ; flowers about } 
in. long, very numerous, slender, sessile or subsessile, in hemi- 
spherical bracteolate terminal heads of 3 in. in diameter with the 
one or two uppermost pairs of spreading leaves and their stipules 
forming a kind of involucre ; bracteoles filiform, not exceeding 
the calyx; calyx narrow, compressed, ;; in. long; the tube 
small, glabrous except some scattered minute scales; the limb 
bipartite; the segments green, opposite, equal, } in. long, 
narrowly linear-lanceolate, acute, ciliate; corolla white-violet- 
coloured, salver-shaped ; the tube slender, 53, in. long, glabrous ; 
the throat glabrous ; the lobes 4, lanceolate, glabrous except a 
few sete outside near the tip, j; in. long, valvate in the bud, 
spreading in the open flower; stamens 4, exserted; filaments 
minutely puberulous, inserted at the top of the tube of the 
corolla between its lobes, longer than the narrowly oblong anthers ; 
disk fleshy, cushion-shaped, glabrous; style filiform, minutely 
