Riverside herb with small white flowers. Radical leaves linear- lanceolate or oblanceolate pinnatisect. Silicules cordate-reniform. North Sudan; Banks of the Nile; Red Sea. Prov. 51 =Enarthrocarpus lyratus= _DC._ RESHAD EL BAHR, SHILTEM, SHIRTEM, & SHILTAM—Arab. Herb; flowers yellow, streaked with purple. Radical leaves lyrate- pinnatifid. Siliquas nodulose, obtusely acuminate. Dongola Prov. (from Egypt). =E. pterocarpus= _DC._ Herb, scabrid below. Leaves lyrate-pinnatifid. Siliquas erect, linear- acuminate, with winged scabrid margins. Nubia. 52 =Zilla myagroides= _Forsk._ =var. microcarpa= _Oliv._ Shrubby, spiny herb, the spines terminating the branches. Flowers white or violet, solitary or racemose, silicules ovoid, beaked. Red Sea Prov., & Nubia. 53 =Raphanus sativus= _Linn._ FIGL—Arab. Horse Radish. Radical leaves lyrate. Flowers white, yellow or lilac. Siliqua 1-2 in. long, terete, beaked. Cultivated everywhere. The seeds, which yield an oil, are used in native medicine for their diuretic and laxative properties. The seed pods as well as the roots are eaten. =VIOLACEÆ.= 54 =Viola nubica= _Hutchinson_, n. sp. Small annual, 4 in. high. Leaves long-petiolate, spathulate-lanceolate, acute, 1¼ in. long, nearly ½ in. broad, very thin, subentire, glabrous; stipules subulate-filiform, entire, 2-lin. long; sepals broadly lanceolate, long-acuminate; petals ⅓ in. long; spur short and blunt. Capsule ¼ in. long. Red Sea Prov. (21° N., sea level to 3-4,000 ft.). 55 =Hybanthus enneaspermus= _Muell._—_Ionidium enneaspermum_ Vent. Erect or decumbent, much-branched herb, up to 2 ft. high. Flowers blue, purple or dull red, solitary, axillary. Fung Prov. (Jongol’s Post); White Nile Prov. (J. Arashkol); Kordofan Prov. 56 =Rinorea ilicifolia= _O. Ktze._—_Alsodeia ilicifolia_ Welw. Shrub or small tree. Leaves strongly spinulose-serrate, coriaceous shining above, 6-9 in. long. Flowers yellow, in narrow terminal, racemose panicles. Capsule 3-valved, coriaceous. Mongalla Prov. (Yei River). =R. oblongifolia= _Marq._ Large tree, buttressed at the foot. Flowers waxy-yellow, in terminal, many-flowered corymbose or pyramidal panicles. Leaves oblanceolate or obovate-oblong, 4-8 in. long. Petals contorted. Niamniam-land (Mbrwole, near the Yuru River & by the Diagbe River). =RESEDACEÆ.= 57 =Caylusea canescens= _St. Hil._ MUDDEYD & DENABA—Arab. Diffuse or ascending herb, more or less pilose. Leaves linear-lanceolate to lanceolate, undulate. Flowers small, in terminal bracteate racemes. Nubia; Red Sea Prov. (Suakin, Khor Tamanib & J. Shellal, 22° N. Lat.). =C. abyssinica= _Fisch._ & _Mey._ Erect herb, up to 3 ft. high, glabrous or thinly scabrid near the extremities. Leaves entire or 3-partite, linear-lanceolate or linear. Flowers small, numerous on terminal, spike-like racemes up to 1 ft. and more long. Red Sea Prov. (21° N. Lat., between sea level & 4,000 ft.).