Small tree; fruit 4-winged. Leaves sub-opposite, 3-5 in. long, ovate to elliptical, sparingly scaly above, densely so beneath. Flowers small in simple axillary spikes shorter than the leaves. Kassala Prov. (Gallabat); Fung Prov.; Mongalla Prov. (Sh. Tombé). =C. parvulum= _Engl._ & _Diels._ Undershrub from a woody rhizome. Leaves oblong, rounded at both ends, very mucronate, 3½ in. long, very strongly reticulate below, pubescent between the veins. Flowers few and clustered at the ends of the peduncle. Fruits broadly elliptic, with membranous wings 1 in. long, puberulous. Bahr El Ghazal Prov. (Dar Fertit). =C. paniculatum= _Vent._ Climber with large panicles of small scarlet flowers. Leaves with twisted stalks, elliptic, 5 in. long, 2½ in. broad, glabrous. Fruits suborbicular, with broad membranous wings about 1 in. across. Bahr El Ghazal Prov. (Mittu-land: Kuddu). =C. capituliflorum= _Fenzl._ Woody climber. Flowers in globose, densely woolly heads arranged in short terminal and axillary panicles, dull yellow. Leaves opposite or ternate, lanceolate, undulate 4-6 in. long. Fruit 1½ in. long; wings narrow, woody. Blue Nile Prov. (Fazoghli); White Nile Prov.; Bahr El Ghazal Prov. (Bongo-land); Bahr El Jebel (Madi). =C. molle= _R. Br._ Shrub or small tree; young leaves densely hairy. Bahr El Ghazal Prov. (between Biri River & Deim Zubeir). =C. racemosum= _Beauv._ Showy shrub, 20 ft. high. Young leaves and flowers carmine. Mongalla Prov. (Yei River). =C. mittuense= _Engl._ & _Diels._ Climber. Leaves oblong-elliptic, acute, about 4 in. long, 2 in. broad, thinly papery, glabrous. Flowers paniculate, with coloured leafy bracts, pale pink, tassel-like; calyx green; stamens carmine. Fruits obovate, with very membranous wings, about 1 in. across. Bahr El Ghazal Prov. (Mittu-land: by the Roah River). =C. near C. comosum= _Don._ Bahr El Ghazal Prov. (Niamniam-land: by the Nabambisso River). =C. aculeatum= _Vent._ SHEKHEIT (Fung), SHUHEIT (Dongola) & SHEHEIT (Kordn.) or SOGHEIT—Arab; MARTE (Dilling) & MINDIGIRI (Kadugli)—Nuba; REGA—Bari. Scandent shrub. Petioles of leaves persistent, forming decurved spines. Flowers rather small, white; calyx 5-lobed; petals 5; stamens 10; anthers orange. Fruit 4-5-winged. Dongola Prov. (Wadi Id El Murakh); Berber Prov. (Atbara River: Goz Regeb); Red Sea Prov. (Khors, Karora Hills); Fung. Prov. (Jongol’s Post); Blue Nile Prov. (Upper); White Nile Prov. (J. Arashkol); Kordofan, Darfur, Bahr El Ghazal & Mongalla Provinces. =C. platypterum= _Hutch._ & _J. M. Diels._ Climber with large panicles of reddish long, tubular flowers, about 1 in. long. Leaves oblong, rounded at the base, 6 in. long, glabrous. Fruits like “Honesty,” orbicular-obovate, broadly winged, about 1½ in. broad. Bahr El Ghazal Prov. (Niamniam-land: by the Nabambisso River). =C. sp. (cf. C. altum= _Guill._ & _Perr._). KUSI (J. Daier)—Nuba.