Darfur Prov.; Bahr El Ghazal Prov. (Niamniam-land: Nabambisso River); Mongalla Prov. (Lado). =P. limbatum= _Meisn._ Perennial 3-4 ft. high. Leaves lanceolate, 3-4 in. long, subsessile, with stout adpressed hairs; ochreæ large, hairy sheathing below, deflexed above. Racemes 3 to a branch, 2-3 in. long; per. pink, minute; stamens 7; styles 2; nut lenticular, glossy, black. Kordofan Prov. (Rahad); Bahr El Ghazal Prov. (Jur Ghattas). =P. barbatum= _Linn._ Hairy perennial. Leaves lanceolate, acuminate, up to 6 in. long, subsessile, hairy both sides; ochreæ without limb. Spikes, 2-3 in. long; bracts bristly on margins, per. pink, minute; stamens 6-8; styles 3; nut trigonous. Kassala Prov. (Gallabat: Matamma); Fung Prov. (Fazoghli); Darfur Prov. (Kulme & J. Marra: Niurnya 6,500 ft.); Bahr El Ghazal Prov. (Jur Ghattas). A blue dye, like indigo, is said to be obtained from this plant in China and Japan. The root is used as an astringent and cooling remedy. =P. lanigerum= _R. Br._ Hoary aquatic herb, 4-5 ft. high. Leaves lanceolate, up to 9 in. long; ochreæ long, membranous, ciliate. Racemes dense, 1-3 in. long; bracts orbicular; per. ⅙ in. long; stamens 6; styles 2; fr. lenticular, black. Bahr El Ghazal Prov. (Meshra El Rek & Ghabat El Arab, Bongo: Zariba Agad Ngulfala); Mongalla Prov. (Kenissa, Yei River). =P. tomentosum= _Willd._ Tall aquatic herb, more fulvous than the above; stamens usually 7; bracts truncate, ciliate, otherwise as above. Fung Prov. (Fazoghli); Kordofan Prov. (Rahad); Upper White Nile Prov. (mouth of Sobat); Bahr El Ghazal Prov. (Niamniam-land: Bodumo swamps & Nabambisso River); Bahr El Jebel (Sudd); Mongalla Prov. Yei River). =P. senegalense= _Meisn._ Perennial, 4-5 ft. high. Leaves distinctly petioled, oblong-lanceolate, narrowed both ends, 2-8 in. long; ochreæ large, truncate, not ciliate. Racemes 2-3 in. long; bracts ovate, not ciliate; per. pale pink, minute; stamens 7; styles 2; nut orbicular, flattened, shining, blackish. Darfur Prov. (J. Marra, 6,500 ft). =P. acuminatum= _H.B._ & _K._ =var. microstemon= _Mart._ Pubescent herb. Leaves lin.-lanceolate, acuminate, 6 in. long, adpressed hairy on both sides; ochreæ bristly. Spikes dense, 2-3 in. long, 2-4 to a stem; bracts ovate, ciliate; per. pink, minute, 4-5 lobed; style bifid; nut lenticular. Bahr El Ghazal Prov. (Jur Ghattas). =P. glabrum= _Willd._ TIMSAHIYA (Khartoum)—Arab. Glabrous marsh herb, 3-4 ft. high. Leaves oblong-lanceolate, up to 8 in. long; ochreæ large, membranous. Spikes dense, 2 in. long; per. pink; stamens 6-8; styles 2; nut lenticular, orbicular. Nubia; Dongola Prov. (Saikot); Between Khartoum & Shendi; Blue Nile Prov. (Bagras, Dinder River); Fung Prov. (Jongol’s Post); White Nile Prov.; Kordofan Prov.; Darfur Prov. (J. Marra, Wadi Gindi 7,300 ft.); Bahr El Ghazal Prov. (Wau in Jur). An infusion of the leaves is used to relieve pain in case of colic. 91 =Rumex abyssinicus= _Jacq._