50 Lxx. RUBiACEvE (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 ; 1^5^ by ^2 J in., shortly petiolate ; 

 stipules hairy, usually of one central lanceolate- subulate segment of 

 ^-^ 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 

 |— J in. long. Corolla-tube more or less bearded. Capsule ^-^ in. 

 long. — Otomeria^ sp., T. Thoms. in Speke, Joum., App. p. 636. 



ZTortli Central. Monbuttu-land, Schweinfurth ! (Corolla crimson outside, 

 pink inside.) 



xrile ]band. Open ground at Madi, Speke and Grant! 691 (Corolla pink except 

 the inside, which is white) ; Niamniam-land, near Bendo, Schweinfurth ! 



3. O. dllatata, 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 f— li 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, \-^ in. long; long lobe 

 |— § in. Corolla bright scarlet. 



Upper Guinea. Niger, swampy places, in Northern Nupe, Barter f 



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 2J by ^ in. ; stipules of about three 

 needle-shaped setse. Spikes 3-13 in. long. Flowers j in. long, 

 dimorphic. Calyx-tube ribbed in fimit, ^— ^ in. long ; long lobe \—^ in. 

 long. 



Kower Guinea. Congo, Chr. Smith ! Burton ! (Wild Diamba.) 



Probably the second species of Neurocarpcea (Pentas) which is the fourth new 



genus of Rubiaceae mentioned by Brown in the appendix to Tuckey's Congo, page 



448 (1818). 



12. DimCHLETIA, Klotzsch ; Benth. et Hook. f. Gen. 

 Plant, ii. p. 66. 



Calyx-tube small, campanulate ; limb developed into an oblique 

 dilated reticulated shallowly concave entire or lobed lamina, at length 

 whitened. Corolla-tube elongated, slender, usually hirsute inside ; 

 limb 5-lobed, valvate in aestivation. 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 or 

 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. 



