Woody perennial with appressed white hairs. Leaves alt., lanceolate or oblong-lanceolate, up to 2-3 in. long. Spikes lax, sometimes up to 6 or 9 in. long; cor. ab. ⅙ in. long, densely pubescent outside; nutlets 4. Red Sea Prov. (Khor Tamanib, Erkowit & Wadi Omareg). =H. zeylanicum= _Lam._ UM MANAKHIR (N. Kordn.), DAFARA (Egypt)—Arab. Woody perennial. Leaves alt., linear or lin.-lanceolate, 1-3 in. long, with bulbous-based hairs. Spikes lax, finally 6-9 in. long; cor. ¼ in. long, lobes 5, caudate-acuminate; nutlets 4. Red Sea, Khartoum, Blue Nile, & Kordofan Provinces. =H. indicum= _Linn._ Erect pilose annual. 1-3 ft. high. Leaves opp. and alt., ovate, sinuate, up to 4 in. long; petiole 2 in. long, narrowly-winged, spikes usually simple, ab. 5 in. long; cor. 5-lobed, lilac or white. Fr. deeply 2-lobed, each lobe with a short bidentate beak and made up of 2 nutlets. Fung Prov. =H. pallens= _Del._ Erect annual, 2 ft. high, branching, grey-woolly. Leaves ovate, up to 2 in. long. Spikes simple or forked in a terminal, sometimes leafy panicle; cor. white, ¼ in. long; nutlets 4. Red Sea Prov. (21° N.L.); Dongola Prov. (Omda); Berber Prov. (El Damer); Khartoum Prov.; Blue Nile Prov.; Kordofan Prov.; Upper White Nile Prov. (Sobat mouth); Darfur Prov. =H. ovalifolium= _Forsk._ RHIMTA (Meshra El Zeraf)—Arab; AGANAMA (Meshra El Zeraf)—Dinka. Widely-branched, silky, pubescent herb. Leaves alt., obovate or elliptic, ⅓-1 in. long. Spikes numerous, dense, finally 2-3 in. long; calyx minute, 1 lobe broader; cor. small; nutlets 4, hispid. Halfa Prov.; Kassala Prov. (Gallabat); Berber Prov.; Khartoum Prov.; Blue Nile Prov.; White Nile & Upper White Nile Provinces (Geteina to Sobat mouth); Kordofan & Darfur Provinces. =H. europæum= _Linn._ KEREIRA (Blue Nile) & DUKHAN EL AZABAT—Arab. Erect herb, with short whitish hairs. Leaves alt., oblong-rhomboidal. Spikes dense, finally lax and 2 in. long; fl. minute, very hairy; nutlets 4, rugose. Blue Nile Prov. (Gezira). Eaten by goats. =H. pterocarpum= _Hochst._ & _Steud._ Slender short herb, densely hispid. Leaves alt., oblong, small, crisped on the margin. Scorpioid spikes short, dense; fl. 5-merous; calyx lobes free nearly to base, ¼ in. long; cor. small; nuts glabrous, cohering in pairs, winged. Red Sea Prov. (near Erkowit). =H. arbainense= _Fresen._ Short, much branched perennial with soft whitish hairs. Leaves alt., ovate or oblong, small. Spikes dense, finally 2-3 in. long; calyx glandular-hairy; cor. tube exserted. Nutlets 4, rugose, glabrous. Coast of Nubia. 603 =Trichodesma physaloides= _A. DC._