=C. Holstii= _Stapf._ Tall tree; bark at first dark green, later whitish. Leaves opp., oblong to elliptic-oblong, up to 10 in. long. Infl. corymbose; cor. white with yellow centre; tube fleshy, up to ½ in. diam. and 1 in. long; lobes oblong, overlapping, 1 in. or more; anthers ½ in. long, sagittate, conniving into a cone. Berry globose, blackish-brown, 4 in. diam. Mongalla Prov. (Yei River). 438 =Adenium speciosum= _Fenzl._ Fleshy arborescent shrub, ab. 4 ft. high; trunk up to 2-3 ft. thick at base. Leaves in spirals and terminal fascicles, oblanceolate or linear oblong, often emarginate, 2-4 in. long, appearing with the flowers, coriaceous. Fl. in paired racemes; calyx 5-lobed, ab. ⅓ in. long; cor. carmine; tube funnel-shaped, ab. 1 in. long with 5 hairy lines inside; lobes 5, ab. 1 in. long or shorter, spreading; anthers 5, sagittate, conniving at the top by long hairy appendages as long as the tube. Fr. 2 spindle-shaped follicles 5-7 in. long. Fung Prov. (J. Akaro & Fazoghli); Nuba Mts. Prov. (J. Hedra, Rashad); Mongalla Prov. =A. Hongkel= _A. DC._ SIM, SIM AHMAR or SHAGAR EL SIM (Baggara)—Arab; DAGARAG (Tagele), NARURAI (J. Eliri) & TUMU (Kadugli)—Nuba. Stumpy arborescent shrub, 6-10 ft. high, with fleshy stem and branches, not unlike a miniature Baobab. Leaves appearing after the flowers, obovate-oblong, 3-4 in. long. Cymes 2-10 flowered; cor. carmine, much as above, somewhat smaller. Nuba Mts. Prov (on rocks). The juice is said to be used for poisoning arrows; hence its Arabic name. =A. obesum= _R._ & _S._ Arborescent shrub, 3 ft. high. Leaves oblanceolate, rounded and mucronulate at the tip, 3-4 in. long, 1-1½ in. broad, puberulous below. Flowers on leafless branches. Corolla tube 1¼ in. long, pubescent. Darfur Prov. (Jebel Marra). =ASCLEPIADACEÆ.[4]= 439 =Cryptolepis oblongifolia= _Schlechter._ Erect shrub. Leaves opp. or ternate, narrowly lanceolate to oblong- elliptic, ½-2 in. long. Cyme subaxillary, 3-16 flowered; cor. yellow, minute. Fr. 2 spindle-shaped, spreading follicles. Mongalla Prov. (Yei River); Bahr El Ghazal Prov. (Niamniam-land). =C. sp.= Shrub 2-4 ft. Leaves lanceolate, acute, 1½ in. long, ⅓-⅔ in. broad, glabrous. Fruiting carpel divergent, 3 in. long. Bahr El Ghazal Prov. (Bongo-land to West of Tonj River). 440 =Tacazzea venosa= _Decne._ =var. Martini= _N.E. Br._ Erect or twining shrub with milky juice. Leaves opp. or whorled, lanceolate, 2½-5 in. long, glabrous above, tomentose beneath. Panicles axillary, 1½-4 in. long; sepals minute, broadly elliptic; cor. lobed nearly to base; lobes oblong, ¼ in. long, overlapping; coronal lobes linear, divided ab. half way down into 2 filiform segments. Follicles 2, lanceolate 2-3 in. long. Kassala Prov. (Gallabat: Matamma). =T. apiculata= _Oliv._ SHAG EL FIL, HALLEYU, ABU LEBBEN & ARKALA—Arab.