Hydrolea.] LXXXVIII. HYDROPHYLLACEiE (baker and brown). 5 



4. H. floribunda, Kotschy & Peyr. PI. Tinn. 22, t. $,fig. B. Stems 

 glabrous, erect, branched in the upper part. Leaves linear, narrowed 

 at the base, glabrous, \-2h in. long, I-3— 2^ lin. broad. Panicle oblong 

 or subcorymbose, 6-8 in. long, 2|-4 in. broad, with ascending branches 

 |— 4 in. long, ending in dense many-flowered cymes, which are usually 

 rather crowded, glabrous in all parts. Pedicels 1-4 lin. long. Sepals 

 1-|— 2 lin. long, ovate lanceolate, acute. Corolla blue; lobes 3 lin. long, 

 about 1^ lin. broad, elliptic-ovate, subobtuse. Staminal- filaments 

 1^-2 lin. long, filiform, with a cross-shaped dilatation at the base, the 

 arms of which have a dorsal upcurved auricle ; anthers about 1^ lin. long. 

 Hypogynous disk conspicuous, § lin. in diam., 5-crenate. Styles 2 lin. 

 long. Capsule ellipsoid, 1| lin. long. 



Wile Land. Bongo : banks of the River Jur, Tinne. Dar Fertit : by the 

 Nguggu River, a tributary of the River Kura, Schiveinfurth, iii., 131 ! 



5. H. graminifolia, A. W. Benn. in Joum. Linn. Soc. xi. 277, 

 t. 1, fig. 12, Perennial (Barter). Stems creeping and rooting at the 

 base, then erect, 2-4 ft. high, 2-3A lin. thick, straight, simple, branched 

 only at the inflorescence, hollow, glabrous. Leaves 2-3^ in. long, 1-2A 

 in. broad, linear, acute, narrowed at the base, glabrous, erect, those at the 

 base of the flowering branches gradually smaller and reflexed. Panicle 

 3-8 in. long, oblong or corymbose, rather compact ; branches ascending 

 ■|-4 in. long, naked below, ending in dense many-flowered cymes, 

 glabrous or most minutely puberulous on the pedicels and calyx. 

 Pedicels 1-4 lin. long. Sepals 1|— 2 lin. long, lanceolate or narrowly 

 ovate-lanceolate, acute. Corolla intense blue ; lobes 3-4 lin. long, 

 1^-2 lin. broad, elliptic or elliptic-ovate, rounded at the apex. Staminal- 

 filaments 2 lin. long, filiform, with a deltoid-ovate or broadly rhomboid 

 dilated base ; anthers 1^-1 J lin. long. Hypogynous disk rather in- 

 conspicuous, scarcely A lin. in diam. Styles 3 lin. long. Capsule 

 globose or ellipsoid, 1J-2 lin. long. 



Upper Guinea. French Guinea : Sulimania; Erimakuna, in wet mud, Scott- 

 Elliot, 5235! Northern Nigeria : Nupe; swamp near Jeba, Barter, 888! 



Order LXXXIX. BOKAGXNEJE. (By J. G. Baker, with 

 additions by 0. H. Wright.) 



Flowers hermaphrodite, usually regular. Calyx inferior; tube 

 campanulate, often very short ; lobes usually 5. Corolla gamopetalous ; 

 tube campanulate, funnel-shaped or cylindrical ; often furnished at the 

 throat with gibbosities or small scales ; lobes usually 5, imbricate. 

 Stamens as many as the corolla-lobes, inserted in or at the throat of 

 the corolla-tube ; filaments filiform ; anthers dehiscing longitudinally, 

 various in shape. Disk annular or obsolete. Ovary superior of two 

 cells with two ovules in each or four lobes with one ovule in each ; 

 style inserted at the apex of the ovary, or between the lobes, simple or 

 once or twice forked ; ovules erect or nearly horizontal. Fruit 

 indehiscent or breaking up into four nutlets. Seeds erect, oblique or 



