Low herb in swamps with reddish glabrous stems and alternate linear obtuse leaves scarcely ½ in. long. Flowers minute, sessile, axillary. Fruits muricate. Bahr El Ghazal (Jur Ghattas). =THYMELÆACEÆ.= 138 =Gnidia Mittuorum= _Gilg._ Heather-like undershrub, 4-12 in. high; stems 4-angled. Leaves oblong or obl.-obovate, ½-1 in. long. Heads terminal, 7-10 flowered; involucral bracts 3-4, ovate, ¼ in. long. Flowers brownish-yellow; pedicels minute, bearing a tuft of white hairs; calyx under ½ in. long; lobes 4, minute; petals 4 inserted on calyx tube, scale-like; stamens 8, sessile in calyx-tube, _in 2 rows_. Bahr El Ghazal Prov. (Dar Fertit: Deim Adlan, Mittu: Deragoh). =G. Schweinfurthii= _Gilg._ Glabrous herb, 1-2 ft. high. Leaves scattered, lanceolate or oblong, ½-1 in. long. Flowers yellowish-brown in terminal heads of 15-25 fl., or in axillary 1-3 headed racemes; invol. bracts 4-5, ovate; calyx smaller than above. Bahr El Ghazal Prov. (Bongo-land: Sabbi). =G. apiculata= _Gilg._ Undershrub, 1½-3 ft. high. Leaves alternate, crowded, linear or narrowly elliptic, ½-2/3 in. long. Heads numerous, terminal, peduncled and lateral ones sessile, 10-15 flowered; invol. bracts 7-14 in 2 rows; calyx tube pubescent. Bahr El Ghazal Prov. (Niamniam-land: Gumango hills); Bahr El Jebel (Madi). 139 =Lasiosiphon Kraussii= _Meisn._ BURURU—Golo. Woody herb, 4-24 in. high. Leaves opposite, elliptic, lanceolate or narrow-ovate, ½-2 in. long. Heads solitary, terminal, many flowered; peduncles 1-4 in., velvety; invol. bracts 6-10, hairy; calyx yellow, hairy below, pubescent above, ½ in. long, 5-lobed; petals minute, scale- like; stamens 10, _in 2 rows_. Nuba Mts. Prov. (Heiban); Darfur Prov. (J. Marra 6,000-9,500 ft.); Bahr El Ghazal Prov. (Jur: between Kutshook Ali’s Zariba & the River Wau, between Pongo River & Jur, Dar Fertit, Golo Desert). The crushed roots are used for poisoning fish. It is also a virulent poison to man and animals. 140 =Arthrosolen chrysantha= _Solms-Laub._ Virgate, bushy, or heather-like undershrub, up to 2 ft. high. Leaves scattered, linear, ¾ in. long. Heads terminal, solitary, many-flowered; invol. bracts ovate to linear; pedicel with ring of hairs; calyx tube ½ in. long; lobes 4; petals 0; stamens 8 _in 2 rows_. Kordofan Prov.; Bahr El Ghazal Prov. (Dar Fertit). 141 =Dicranolepis Schweinfurthii= _Gilg._ Shrub or small tree. Leaves alternate, oblong or obl.-lanceolate, caudate-acuminate, 2-3 in. long, with yellow-brown hairs beneath. Flowers solitary, sessile, 1 in. long; calyx tube slender, lobes 5, ⅙ in. long; pet. 5, scale-like, forked; stamens 10, _in 2 whorls_. Drupe oval, ½ in. long. Belgian Congo (Niamniam-land: River Diagbe at Wando). =D. cerasifera= _Gilg._ Shrub. Leaves variable, ovate to lanceolate, acute or acuminate, 1-2½ in. long, hairy beneath. Flowers 1-2 together, not seen. Drupe smaller than a cherry, reddish. Belgian Congo (Niamniam-land: by Diamwonu River).