Uapaca.] cxxii. euphorbiace^ (hutchinson). 639 



Vpper Guinea. Cameroons: Prewj.«, 1171 ! Mudatis, 23. Bipinde, Zen/Erer, 



3007 ! Lolodorf, Staudt, 275 ! 



8. U. Heudelotiiy Baill. Adansonia, i. 81. A tree up to 60 ft. 

 high ; brarichlets sulcate, glabrous. Leaves oblong - oblanceolate, 

 rounded or very obtusely pointed, acutely cuneate to the base, 2^Q in. 

 long, 1J-2J in. broal, somewhat coriaceous, margins slightly undulate, 

 glabrous and dull on both surfaces; lateral nerves 10-1 o on each side, 

 looped some distance from the margin, raised on the lower surface ; 

 tertiary nerves reticulate, lax, distinct below; petiole slender, ^-l^ in. 

 long, often sulcate, glabrous. Male flower-heads crowded at the ends of 

 the branchlets, solitary ; peduncles glabrous J-| in. long. Bracts of 

 the involucre elliptic or obov.tte, up to 4 lin. long and 2 lin. broad, 

 membranous, glabrous. Calyx deeply lobed, glabrous ; lobes unequal. 

 Stamens 5 ; tilaments glabrous. Ruditnentary ovary columnar, 

 truncate, erect, glabrous. Female flowers axillary or arising above 

 the axils, mostly solitary, pedunculate; peduncles thick, terete, j in. 

 long. Involucre 5-6-partite, lobes c;iducous. Ovary 2-4-celled. Fruit 

 ellipsoid, acute, glabrous, crowned by the slender persistent styles. — 

 Miill. Arg. in DC. Prodr xv. ii. 490 ; Pax in Engl. Jahrb. xxxiv. 371 ; 

 De Wild. Miss. E. Laurent, i. 128. (7. Marquesiiy Pax in Engl. Jahrb. 

 xxiii. 522, xxxiv. 371. 



Upper Guinea. Senegiimbia, Heudelot, 836! Sierr.i Leone: by Kabele River, 

 Nii:ia, and common on the Tulla Hills and FHlal)a plnteau, 3500 ft., Scott-Elliot, 

 4925 ! 4946 ! 5150 ! Ivory Coast: shore of the lagoou at Dabow, Chevalier, lfil99 ! 

 Lagos: near L&gos, Molonet/ ! Foster, 'i ! Awon River, "Rowland! Nii^eria: Nnpe, 

 river-bank, Barter, 1151 ! near the liver at Ode Obha, Foster, 169! Old Calabar: 

 near the river, Mann, 2268! Cameroons : Bipinde, Zenker, 1227! 1551! 1631! 

 1724 ! Johann AlDrechtshohe, Staudt, 652 ! Tibati, Ledermnnn, 2365 ! 



Soutb Central. Lunda; Lulua, Po^^e, 2981 633,674! 



Var. ? acuminata, HatchixMion. Leaves shortly acuminate. 



Upper Guinea. Cameroons: Barombi, Preuss, 81 Johann-Albrechtshohe, 

 Staudt, 577! 



9. U. Bossenge, De Wild. Etudes Fl. Bas- et Moy&n- Congo, ii. 271, 

 t. 70, figs. 1-4. A much -branched tree ; branchlets glabrous when 

 mature. Leaves obovate, obtuse or rounded at the apex, somewhat 

 cuneate at the base, 4-6J in. long, Ij— 2J in. broad, glabrous on both 

 surfaces; Utt-ral nerves 10-12 (m ench side ; stipules soon falling off; 

 petiole |-l J in. long. Male flower-heads axillary ; peduncle J-J in. long. 

 Involucral bracts obovate, 5 lin. long, 4 lin. broad, glabrous. Calyx 

 glabrous, subentire or undulate. Filaments glabrous. Rudimentary 

 ovary glabrous, gradually widened into a flat top, reaching the top of 

 the calyx-tube. Female flowers not known. 



Soutb Central. Belgian Congo : near Eala, Laurent, 128. 

 Native name " bi-ssenge." 



10. U. nitida. Mull. Arg. in Flora, 1864, 517. A shrub or tree 

 up to 50 ft. high; trunk erect, up to 18 in. in diam. ; head spreading. 

 Leaves crowded towards the ends of the branchlets, oblong-elliptic or 



