White Nile Prov. (J. Arashkol); Kordofan Prov. (Obeid, Taiara); Bahr El Ghazal Prov. (Jur: Jur Ghattas); Darfur Prov. (Kulme). It is eaten as a vegetable. =ACANTHACEÆ.= 666 =Thunbergia affinis= _S. Moore._ Woody herb, 6-7 ft. high. Leaves opp. as in all this family, ovate, acuminate, 4½ in. long; pet. ¾ in. with 2 thorns at base. Fl. solitary, enclosed by 2 ovate bracteoles, giving a false appearance of a calyx, 1¼ in. long; calyx lobes 5 dotted with white scales; cor. tube yellow, 1¾ in. long; lobes violet, ½ in. long. Caps. 1 in. long, beaked. Bahr El Ghazal Prov. (Niamniam-land); Belgian Congo (Niamniam-land: Naporruporru River). =T. annua= _Hochst._ Hairy marsh herb. Leaves oblong-lanceolate, 4 in. long, sessile. Fl. solitary on short peduncle; bracteoles 2, ovate, keeled; cor. white (?), tube ½ in. long; lobes 5, ⅛ in. long; st. 4, anthers with 2 spurs at base. Caps. beaked. Fung Prov. (Jongol’s Post); White Nile Prov. (J. Arashkol); Kordofan Prov. (Abu Gerad). =T. annua= _Hochst._ =var. Ruspolii= _Burkill._ More hairy. Leaves subtruncate at base; bracteoles hirsute. Upper White Nile Prov. (Meshra El Zeraf). =T. hispida= _Solm._ Hispidly white herb; stems 4-angled. Leaves elliptic-oblong, 1 in. long. Fl. solitary; bracteoles 2, ovate-acuminate; cor. white, lobes 5; st. 4, anthers 2-spurred below. Caps. 1 in. long, glandular. Fung Prov. (Roseires); Upper White Nile Prov. (Sobat River: between Abwong and Nasser). =T. alata= _Boj._ Climbing, pilose herb. Leaves ovate sagittate or hastate, 2½ in. long; pet. 1-2 in. long, winged. Fl. solitary on 2 in. long peduncles; bracteoles ovate, 1 in. long; cor. tube claret-coloured 1/5 in. long; lobes 5, yellow to white, ab. ½ in. long; anthers 4, 2 upper ones 1-spurred, 2 lower 2-spurred. Caps. ¾ in. long, seeds 4. Bahr El Ghazal Prov. (Niamniam-land: Nabambisso River); Mongalla Prov. (Yei River). =T. Schweinfurthii= _S. Moore._ Strigose herb. Leaves narrowly lanceolate, 2½ in. long, hastate. Fl. solitary, peduncles ab. 1 in. long; bracteoles ovate-lanceolate, white with green veins. Cor. 1¼ in. long, lobes small; st. 4, 2 anthers 1-spurred. Bahr El Ghazal Prov. (Jur: near Zeriba Kutshuk Ali). 667 =Elytraria crenata= _Vahl._ Dwarf pubescent herb. Leaves alt., crowded near the base, 2-7 in. long, spathulate or oblanceolate, crenate or sinuate. Scapes several, 2-9 in. high, covered with small bracts; spikes simple or compound; bracteoles 2; calyx 4-partite; cor. white or pale blue, ⅓ in. long, 2-lipped, 5-lobed. Caps. ovoid, ⅙ in. long. Belgian Congo (Niamniam-land: by the Yuru River). 668 =Nelsonia campestris= _R. Br._ Small villous, diffuse herb. Leaves opp., elliptic, variable in size. Spikes 1-3 in. long imbricated; bracts ovate; bracteoles 0; cor. usually pale lilac or white, 2-lipped, 5-lobed; st. 2. Caps. oblong, ¼ in. long.