50 LXX. RUBIACEA (HIERN). [ Otomeria. 
at base. Branches hispid or pubescent or glabrescent. Leaves ellip- 
tical, usually narrowed at both ends, especially towards the base, hairy 
at least on the veins beneath ; 14-51 by 4-23 in., shortly petiolate ; 
stipules hairy, usually of one central lanceolate-subulate segment of 
3-4 in. and two lateral smaller subulate segments. Spikes terminal, 
solitary or branched, a foot long or more. Flowers #-1 in. long, 
shortly pedicellate, dimorphic. Calyx hispid or glabrate, the long lobe 
34 in. long. Corolla-tube more or less bearded. Capsule }-4 in. 
long.—Otomeria, sp., T. Thoms. in Speke, Journ., App, p. 636. 
Worth Central. Monbuttu-land, Schweinfurth! (Corolla crimson outside, 
pink inside.) ; 
Mile Land. Open ground at Madi, Speke and Grant! 691 (Corolla pink except 
the inside, which is white); Niamniam-land, near Bendo, Schweinfurth ! 
3. O. dilatata, Hiern. Erect robust herb, 2 ft. high. Stem more 
or less hirsute. Leaves ovate-lanceolate from a broad nearly rounded 
base, narrowed to a rather obtuse apex, hirsute or nearly glabrous; 
2-4 by 2-1} in., shortly petiolate; stipules of about three narrowly 
lanceolate or subulate hirsute or ciliate teeth. Spikes 6-12 in. long. 
Flowers 1 in. long. Calyx-tube in fruit ribbed, 1-2 in. long; long lobe 
$2 in. Corolla bright scarlet. 
Upper Guinea. Niger, swampy places, in Northern Nupe, Barter ! 
4, O. lanceolata, Hiern. Somewhat shrubby, branched, glabrous 
or glabrescent in most parts. Branches rather slender, stiff. Leaves 
lanceolate, mostly acute, attenuate at the base into a short petiole, 
sub-fasciculate, ranging up to 2} by 4 in.; stipules of about three 
needle-shaped sete. Spikes 3-13 in. long. Flowers 3 in. long, 
otmorphic. Calyx-tube ribbed in fruit, 3} in. long ; long lobe }-} mm. 
ong. 
Lower Guinea. Congo, Chr. Smith! Burton! (Wild Diamba.,) 
Probably the second species of Newrocarpea (Pentas) which is the fourth new 
ee of ow mentioned by Brown in the appendix to Tuckey’s Congo, page 
448 (1818). 
12. DIRICHLETIA, Klotzsch; Benth. et Hook. f. Gen. 
Plant. ii. p. 56. 
Calyx-tube small, campanulate; limb developed into an oblique 
dilated reticulated shallowly concave entire or lobed lamina, at length 
whitened. Corolla-tube elongated, slender, usuaily hirsute inside ; 
limb 5-lobed, valvate in estivation. Stamens 5, inserted at the throat 
of the corolla, included or exserted ; anthers linear-oblong. Disk fleshy- 
Ovary 2-celled; style filiform; stigma bipartite; ovules numerous. 
Fruit oblong, costate, attenuate at the base, dicoccous.—Glabrous oF 
pubescent undershrubs with subterete branches, opposite shortly 
petiolate leaves, tricuspidate or 3—5-setose very shortly sheathing 
stipules, corymbose cymes, and often dimorphic flowers. 
A small genus peculiar to Eastern Africa and to Madagascar. 
ee 
