Viiex.] CI. VERBENACE^ (baker). 331 



5-foliolate; leaflets distinctly stalked, oblong, 4 in. long, 2 in. broad, 

 shortly acuminate, narrowed to the base, entire, scabrous above, tomen- 

 tose beneath. Cymes long-stalked, axillary, dense ; pedicels short, 

 pubescent ; bracts linear-subulate. Calyx campanulate, pubescent, 

 |-J in. long ; teeth very short and broad. Corolla-tube pubescent, a 

 little longer than the calyx. Stamens scarcely exserted. 



Wrile Xiand. British East Africa ; Uganda, common, Scott-Elliot, 7252 ; 7411 ! 



nCozamb. Dlst. German East Africa : Kageyi, on Lake Victoria, Fischer, 

 476 ! Uzinja, Stuhlmann, 3576 ; Kimsani Plateau, Stuhlmann, 3894 : Mwanza, 

 Stuhlmann, 4137, 4184. 



58. V. Buchneri, Gurke in Engl. Jahrh. xviii. KJG. A shrub; 

 branches finely tomentose upwards. Leaves long-petioled, 5-foliolate ; 

 leaflets very shortly stalked, obovate, 4-5 in. long, apex shortly cuspi- 

 date, narrowed to the base, pubescent above, densely feiTugino- 

 tomentose beneath. Cymes long-stalked, axillary, lax ; branches 

 ferrugino-tomentose ; pedicels long ; lower bracts lanceolate. Calyx 

 campanulate, \ in. long; teeth lanceolate-deltoid, acute. Corolla-tube 

 rather longer than the calyx ; anticous lobe cuneate, deeply dentate. 

 Stamens shortly exserted. 



Xiower Guinea. Angola : Kassambo, Buchner, 574. 



13. AVICENNIA, Linn. ; Benth. et Hook. f. Gen. Plant, ii. 1160. 



Calyx short, 5-partite, not accrescent ; segments oblong, imbricate. 

 Corolla<-tube short, funnel-shaped ; limb patent, usually 4-lobed, rarely 

 5-lobed. Stamens 4, inserted at the throat of the corolla-tube ; filaments 

 short, filiform ; anthers ovoid, with parallel cells. Ovary with a 4- 

 winged central axis, imperfectly 4-celled ; cells 1-ovuled ; style short, 

 bifid at the stigmatose apex ; ovules pendulous from the central axis. 

 Fruit capsular, compressed, 2-valved. Seed by abortion usually solitary ; 

 coats of the ovule imperfectly developed ; cotyledons longitudinally 

 folded ; radicle inferior, villous ; plumule growing out before the seed 

 falls, as in Rhizophora. — Shrubs or trees. Leaves opposite, entire, 

 coriaceous, petioled. Flowers small, aggregated in globose heads, each 

 flower subtended by a bract and a pair of bracteoles. 



Species 3 or 4, inhabiting the tropical shores of both hemispheres. 



Corolla-lobes white, pubescent inside . . . .1. A. africana. 



Corolla-lobes bright yellow, glabrous inside . . . 2. A. officinalis. 



1. A. africana, P. Beauv, Fl. Owar. i. 80, t. 47; Schaiver in DC. 

 Prod. xi. 699. A shrub or tree, reaching to a height of 40 ft. Leaves 

 lanceolate or oblong-lanceolate, 3-6 in. long, 1-1 i in. broad at the 

 middle, acute or obtuse, narrowed gradually to a short petiole, very 

 coriaceous, dull green above, clothed with thin whitish or drab tomentum 

 beneath. Spikes produced from the axils of the leaves and forming a 

 small terminal panicle ; peduncles finely tomentose ; bracts broad, ovate. 

 \-\ in. long. Calyx-segments small, oblong. Corolla-lobes as long a.s 

 the tube, white, pubescent on both surfaces. Style ^a-^V ^^' ^^^g- 



