Herb, 2-3 ft. high, pubescent. Leaves ovate, 2 in. long, crenate, the upper sessile. Racemes long, lower whorls distant, subtended by large leaves; bracts many, linear, ¼ in. long; calyx ¼ in., teeth 5, ribs 15; cor. under ½ in., violet-blue, lower lip 3-lobed, central one largest; st. 4. Red Sea Prov. (Erkowit & Has Has). =N. ballotæfolia= _Hochst._ Pubescent herb. Leaves ovate, 1-1½ in. long, crenate, sessile. Racemes as above; bracts linear, large; calyx ¼ in.; cor. tube longer than calyx, lower lip ⅛ in. long, 3-lobed, central lobe largest. Darfur Prov. (J. Marra 9,200-9,500 ft.). 719 =Scutellaria Schweinfurthii= _Briquet._ Perennial, 1 ft. high. Leaves lanceolate, subsessile, slightly hairy. Racemes long, lax, whorls 2-flowered; fr. calyx ¼ in., upper lip orbicular, reflexed, lower shorter; cor. ⅓ in., lips ⅙ in. long, lower deflexed. St. 4, upper pair 2-celled, lower 1-celled. Bahr El Ghazal Prov. (Jur, Kutshuk Ali’s Zariba, & Mittu at Ngame). 720 =Otostegia tomentosa= _A. Rich_ Pubescent shrub. Leaves subsessile, very small, thick, oblong, crenate, white-tomentose beneath. Fl. axillary, whorled, sessile, bracteate; calyx-tube funnel-shaped, 10-ribbed, ⅓ in. long, lower lip orbicular, upper small crenate; st. 4. Red Sea Prov. (Erkowit). =O. repanda= _Benth._ BALUD & BASADEM—Hadendowa. Pubescent shrub. Leaves petioled, ovate, 1-2 in. long, crenate. Fl. axillary, whorled; bracts subulate; calyx ⅓ in. long, upper lip small, ovate, lower orbicular, crenate, ⅓ in. broad; cor. white, longer than calyx. Red Sea Prov. (21-22° N. Lat., Has Has & Erkowit); Darfur Prov. (Zalingei & J. Marra: Niurnya 6,500 ft.). =O. scariosa= _Benth._ Pubescent shrub; branches 4-angled. Leaves petioled, broadly ovate, up to 1 in. long, crenate. Fl. axillary, in distant whorls, bracts many subulate; flower as above. Darfur Prov. 721 =Leucas nubica= _Benth._ Pubescent herb. Leaves ovate, up to 2 in. long, crenate. Whorls many, distant, many-flowered; bracts large, linear, ciliate; calyx tube ⅙ in. long, ribs and teeth 8-10, teeth linear-subulate; cor. tube ⅙ in. long, lips 2, small, lower 3-lobed; st. 4. White Nile Prov. (J. Arashkol); Kordofan Prov. (Katul Gombara). =L. inflata= _Benth._ Densely white-hairy, branched perennial. Leaves subsessile, suborbicular, crenate at tip, ½-1 in. long. Whorls numerous, 6-10 flowered, the upper approximate with reduced leaves; bracts minute; calyx campanulate, inflated ⅙ in. long, villous, teeth deltoid; cor. ⅓ in. long, upper lip villous at tip. Red Sea Prov. (21° N. Lat. J. Waratab, Khor Tamanib & Sinkat). =L. martinicensis= _R. Br._ Branched annual, 2-3 ft. high; branches pubescent. Leaves thin, oblong, crenate, hairy up to 3 in. long. Whorls dense, distant, bracts large, subulate; calyx ⅙-¼ in. long, hairy, throat oblique, teeth unequal, subulate; cor. small, deciduous.