=PORTULACACEÆ.= 87 =Portulaca quadrifida= _Linn._ Prostrate, fatty herb. Flowers yellow. Leaves opposite, oval, numerous, fleshy. Joints and flower-heads bristly. Red Sea Prov. (Karora); Kassala Prov. (Gallabat); Khartoum, Upper White Nile & White Nile Provinces. =P. oleracea= _Linn._ RIGLA—Arab. The Purslane. Succulent annual with obovate or oblong-spathulate, alternate, fleshy leaves. Flowers in clusters, few together, yellow, open during a short time in the morning. Common everywhere. Wild in various parts, e.g., Red Sea, White Nile, Bahr El Ghazal & Mongalla Provinces. Used as a vegetable and salad, the seeds are demulcent, diuretic and slightly astringent. =P. Erythraea= _Schwfth._ Fleshy; leaves obovate-cuneate, about 1 in. long. Flowers axillary, sessile, solitary. No locality given (fide Mrs. Crowfoot). =P. foliosa= _Kern._ Herb, woody below. Leaves fleshy, terete. Flowers yellow, solitary or in few-flowered heads, with numerous setæ. Bahr El Ghazal Prov. (Mvolo near Rōl River). 88 =Talinum Caffrum= _E._ & _Z._ Small herb, woody below, somewhat succulent above. Leaves linear- lanceolate. Flowers axillary, solitary or in pairs, yellow. Mongalla Prov. (Sh. Tombé). =T. cuneifolium= _Willd._ DANAB EL TUT (Meshra El Zeraf)—Arab; KUGATABBA—Bongo. Undershrub. Leaves thick. Flowers carmine; capsules size of a pea, thinly crustaceous, nodding; seeds numerous. Fung Prov. (Jongol’s Post); White Nile Prov.; Kordofan Prov. (J. Dago & Barku); Bahr El Ghazal Prov. (Niamniam-land). =T. crassifolium= _Willd._ Small herb, woody below. Leaves fleshy, elliptic or oblanceolate-oblong. Flowers red in terminal, few-flowered panicles. Red Sea Prov. (coast). =POLYGONACEÆ.= 89 =Oxygonum atriplicifolium= _Martelli._ Herb; stem slender, pubescent on one side. Leaves alternate, deltoid to lanceolate, ¾ in. long; petiole ¼ in. long, dilated into a membranous sheath (_ochrea_), with long hairs. Racemes 6 in. long; bracts like ochreæ enclosing 2-3 flowers; per. minute, pink, 5-lobed, becoming 3-spined in fruit; stamens 8; styles 3. Flowers polygamous. Red Sea Prov.; White Nile Prov. (J. Arashkol); Kordofan Prov. =var. sinuatum= _Baker._ Leaves thicker, pinnately lobed. Red Sea Prov. (Khor Tamanib); White Nile Prov. (Hillet Abbas); Kordofan Prov.; Darfur Prov. (Kulme); Mongalla Prov. (Bor & Mongalla). 90 =Polygonum plebeium= _R. Br._ Prostrate herb with short internodes. Leaves alternate, linear-oblong, ¼ to ½ in. long; ochreæ membranous, white, lacerate. Flowers clustered 2-5, axillary; per. white, small, 5-lobed; stamens 8. Fr. trigonous, shining. Khartoum Prov.; Banks of the Nile; Fung Prov. (Jongol’s Post). =P. serrulatum= _Lag._ Slender procumbent annual, 2-3 ft. long. Leaves lanceolate, acuminate, 3-4 in. long, subsessile; ochreæ bristly. Spikes several to a stem; 1½-2 in. long; bracts ciliate; per. pink, minute; stamens 6-8, styles and nut as above.