Oanthium.] Lxx. kubiace^ (hiern). 139 



Stigma calyptriform, much exserted ; style pubescent (except the 

 variety). Fruit didymous or dimidiate, |-^ in. long ; albumen rumi- 

 nated ; embryo nearly straight. — Plectronia zanzibarica, Vatke in 

 Oesterr. Bot. Zeitschrift, xxv. p. 231 (1875). 



irile Xtand. Bongo-land, Schweinficrth ! 



IKCozamb. Bistr. Zanzibar Island, Pc^<?r5.' Hildehrandt ! Nazimoio, iiCir^' / 

 Var. glahristyle. Style glabrous. 



Blozamb. Bistr. Zanzibar and Mombas, Bojer ! Kirk! East Africa, Forbes! 

 right bank of Luabo, Kirk ! Liike Nyassa, entrance of Roangiva, Kirk ! 



15. C gracile, Hiern. Glabrous except the inflorescence, un- 

 armed. Branchlets slender, erect-patent, terete or at the extremities 

 somewhat compressed, alternate. Leaves oval, subacuminate, mu- 

 cronulate, more or less wedge-shaped at the base, chartaceous or thinly 

 coriaceous, rather paler beneath, 1^-4 by |— 2 in. ; lateral veins 

 about 4-G pairs ; petiole ^% in. ; stipules lanceolate-subulate, erect, 

 -^— I in. long. Flowers ^-^ in. long on short sparsely pubescent pedi- 

 cels, many together, in short rather dense repeatedly dichotomous 

 shortly pedunculate opposite or alternate panicles of 1-2 in. diameter. 

 Calyx-tube turbinate, sparsely pubescent ; limb small, 5-dentate ; teeth 

 ei-ect, hairy. Corolla glabrous outside ; throat bearded ; lobes 5, ovate, 

 glabrous. Anthers elliptical, pointed at both ends, rather longer than 

 the filaments. Disk puberulous. Style far exserted, glabrous ; stigma 

 calyptriform, much exserted. 



Xower Guinea. Angola, at Ambriz, Monteiro ! 



16. C. Keudelotii, Hiern. Branches subterete, rather slender, 

 puberulous and somewhat compressed towards the extremities. Leaves 

 oval-ovate, more or less acuminate, obtuse or somewhat wedge-shaped 

 at the base, thinly coriaceous, nearly glabrous, scarcely or slightly 

 paler beneath, 3-4 by 1^-2 in. ; lateral veins about 7-9 pairs, slender, 

 not conspicuous; margins narrowly sub-revolute ; petiole ^-f in. 

 puberulous ; stipules much apiculate from a deltoid base, inter- 

 petiolar, puberulous, \ in. long. Common peduncles (in fruit) ^ in. 

 long, puberulous, patent ; fruiting pedicels i— | in. long, rather numer- 

 ous ; bracteoles minute. Fruit obliquely subglobose or didymous, 

 glabrate, J in. long ; calyx- limb very small, glabrate, apparently pen- 

 tamerous, subpersistent near the base of the fruit or in the case of the 

 didymous fruits at the apex. Disk puberulous or glabrate. Albumen 

 of the seeds ruminated. — Canthium, sp. nova, Benth. in Hook. Niger 

 Fl. p. 410. 



Upper Guinea. Senegarabia, Heudclot ! 



17. C. polycarpum, Schiveiuf. 3£s.<!. in Herh. A tree 40 feet 

 high, with very slender stem and elongated distichous glabrous 

 angular unarmed erect-patent robust branches, forming a crown not 

 unlike that of a tree-fern. Leaves oval, acuminjite, obtusely narrowed 

 near the base, chartaceous, glabrous or with short scaitered curved 

 hairs on the midrib and the 7-8 pairs of lateral veins beneath, 3| -1-i 

 by lJ-2 in. ; petiole ^-^ in., glabroias or nearly so ; stipules ovate, 



