The leaves are occasionally mixed with those of the true Senna. =C. holosericea= _Fresen._ Shrubby and velvety. Leaflets 5-8 pairs, ovate to oblong, 1 in. long. Racemes shorter than the leaves. Pod 1½ in. long, broadly falcate. Red Sea Prov. (Khor Seterri, South of Suakin); Bahr El Ghazal Prov. (Jur Ghattas). =C. didymobotrya= _Fres._ Shrub, 10 ft. high. Leaflets 8-16 pairs, oval-oblong, apex rounded, mucronate, base obliquely rounded. Racemes 5-12 in. long, from upper axils, flowers packed at first in imbricate, caducous bracts. Pod linear-oblong, 3-4 in. long. Bahr El Jebel (Madi). =C. acutifolia= _Del._ SENNA or SENNA EL RIF (N. Kordn.) & SENNA MEKKA—Arab. Undershrub. The flat pod has no crest on its side. Leaflets 4-5 pairs, oval to lanceolate, acute. Racemes from axils of upper leaves, much longer than the leaves; pods broadly oblong, slightly curved, without crest on the sides, ab. 2 in. long. North Sudan; Red Sea Prov.; Khartoum Prov.; Blue Nile, Darfur & Kordofan Provinces. The pods and leaves constitute the true Alexandrian Senna of commerce. =C. Absus= _Linn._ HABBAT EL AIN (N. Kordn.) & HAB EL AIN (Port Sudan)—Arab. Erect annual, 1-2 ft. high, covered with bristly glandular hair. Leaves small; rachis swollen at the base and with a gland between every one of the 4 pairs of leaflets, which are broadly oval or obovate-oval; pod 1-2 in., hairy, linear, ab. ¼ in. broad. Kassala Prov. (Gallabat); Fung Prov. (Jongol’s Post); Kordofan Prov.; Upper White Nile Prov.; Bahr El Ghazal Prov. (Jur Ghattas). The seeds are used for ophthalmia and the ringworm. =C. mimosoides= _Linn._ Shrubby. Leaflets very small, linear, unequal sided, usually 10-80 pair; flowers yellow; pod linear, ab. 2 in. long, slightly pilose. Kassala Prov. (Gallabat); Fung Prov. (Jongol’s Post); Kordofan Prov. (El Obeid & Tekele); Bahr El Ghazal Prov. (Shambé); Darfur Prov. (Kulme). =C. nigricans= _Vahl._ SURIB (N. Kordn.)—Arab. Erect herb, up to 5 ft. high, somewhat similar to above. Leaflets small, 8-18 pair; flowers very small. Pod linear, ab. 2 in. long. Kassala Prov. (Gallabat); Khartoum Prov.; Fung Prov. (Harun); Kordofan Prov. (near Rahad); Nuba Mts. Prov. (J. Eliri); Bahr El Ghazal Prov. (Bongo-land: Addai, Niamniam-land); Mongalla Prov. =C. goratensis= _Fresen._ Shrub or small tree. Leaflets 7-9 pairs, oblong to obovate-elliptic, rounded both ends, pubescent, 1½ in. long, with inter-petiolular glands. Flowers corymbose, crowded at ends of branches; petals yellow, large, unequal. Pods constricted, up to 4 in. long. Blue Nile Prov. (Upper); White Nile Prov.; Nuba Mts. Prov.; Mongalla Prov. (near Gigging). 270 =Bauhinia fassoglensis= _Kotschy._ KARAUERAU—Arab; PAJ (Bahr El Ghazal)—Dinka & Jur; USIN—Golo; KORA—Hameg. Scandent shrub. Leaves bilobed, like a camel’s foot, up to 4½ in. broad. Flowers in leaf-opposed or terminal racemes, 1 ft. long; calyx strongly keeled; cor. white; stamens 10, of which usually only 2 perfect.