Upper White Nile Prov. (Kodok). =C. Rothii= _Oliv._ MURDU (Baggara), & SH’AIBEIT (Fung)—Arab; MUARTA (Dilling)—Nuba; RIADI—Bari; RIAT (Bor)—Dinka. Thorny climber or small tree. Leaves elliptic-oblong, often emarginate. Flowers white, in axillary fascicles, up to 6 flowers. Fruit globose, somewhat pointed, about 1 in. across, turning red when ripe. Upper White Nile Prov. (Kodok, Renk, Melut); Mongalla Prov. =C. erythrocarpa= _Isert._ Thorny climber. Fruit scarlet, hexagonal, about size of a walnut. Leaves elliptical, obtuse. Flowers axillary, solitary, 2 in. across. Bahr El Ghazal Prov. (Mittu-land: Kuddu, Bongo-land: Baiko). =C. aphylla= _Roth._ =C. decidua= _Pax._ TUNDUB—Arab; SAROP—Hadendowa; KAMRE (J. Daier), & SHIMEIL (Dilling)—Nuba; NANGOT—Shilluk. Shrub or small tree, spiny and generally leafless. Flowers pink; fruit size of a small cherry. Widely distributed north of Lat. 13° N., also occurs in Bahr El Ghazal Prov. The fruit (Arabic, HUNBUG) is edible, the plant is considered useful for boils, eruptions, swelling and affections of the joints. 35 =Boscia octandra= _Hochst._ MOKHEIT & UMKHEIT (Darfur)—Arab; FOG (Renk)—Dinka; ATOKA—Golo; DEB (Ghabat El Arab)—Nuer; ARAY—Jur. Shrub or small tree. Leaves more or less oval, thick and dark coloured; flowers sub-umbellate or racemose, sweet scented. Fruit globose under ½ in. diameter. Stamens 8-20. Widely distributed south of Lat. 16° N. The fruit, called KURSAN by Arabs, is edible; an emulsion of the leaves is used as an eyewash. =B. angustifolia= _A. Rich._ TIRLING (J. Daier)—Nuba. Tree or shrub. Flowers greenish, fragrant. Leaves coriaceous, narrow, lanceolate, oblong or obovate. Fruit globose, under ½ in. diameter. Stamens 6-9. Kordofan Prov.; Whole Sudan through Kordofan. =B. firma= _Rad._ Woody shrub with crowded fasciculate, narrowly oblong elliptic leaves, 1½ in. long, ½ in. broad, very strongly reticulate below. Racemes very short. Fruits sub-globose, very small. Fung & Kordofan Provinces. =B. salicifolia= _Oliv._ SAHAI (Kordn.), TILEITILLA (N. Kordn.), KARAUERAU (Baggara), & SESIFAN (Fung)—Arab; KOLWAKAI (J. Eliri)—Nuba. Shrub or a straight, graceful tree. Leaves elongate-linear or lanceolate, 2-5 in. long. Flowers in axillary racemes; stamens 6-14. Fruit ellipsoid-globose, ¾ in. long, shortly stipitate. Fung, White Nile, Kordofan, Darfur & Bahr El Ghazal Provinces. 36 =Courbonia virgata= _A. Brongn._ KARKADAN (Mongalla), KURDAN (Baggara)—Arab; DAYA—Bari; ABRO—Golo. Glabrous, glaucous shrub or undershrub, with leafy, virgate branches; flowers axillary, solitary; petals 0. Leaves glaucous, elliptical to ovate. Fruit globose, about 1 in. diameter. Red Sea Prov.; Berber Prov.; Blue Nile, Fung, White Nile, Kordofan & Bahr El Ghazal Provinces. The ashes of leaves and stem are used as a substitute for salt. Fruit edible. =C. decumbens= _A. Brongn._