Kordofan Prov.; Darfur Prov. (Kulme). 560 =Bidens pilosa= _Linn._ Annual, up to 5 ft. high. Leaves opp., ovate, mostly pinnately-lobed, blade 1-5 in.; petiole 2½ in. Capit. heterog., tipped with 2-4 barbed, spinose bristles, in a lax corymbose cyme; ray fl. white, ligulate, fem. or neuter; disk fl. yellow, hermaphr. Fr. an achene, ab. ½ in. long. Red Sea Prov. (Soturba, Coast); Kassala Prov. (Gallabat); Kordofan Prov. (Katul Gambara); Bahr El Ghazal Prov. (Jur Ghattas & Bongo-land, Gurfala); Darfur Prov. (Kulme & J. Marra). =B. bipinnata= _Schultz Bip._ Very similar to above, but leaves mostly bipinnately lobed. Achenes with 3-4 spinose barbed bristles. White Nile Prov. (J. Arashkol); Kordofan Prov.; Red Sea Prov. =B. Schimperi= _Schultz Bip._ Subscabrous herb, up to several feet high. Leaves opp., 2-3 pinnatisect or more or less 3-fid, 3-6 in. long, with scattered black dots. Capit. heterog., yellow, in lax corymbose cymes. Ray fl. fem. or neuter; ligule ½ in. long. Achenes with 2, sometimes 3 setæ. Red Sea Prov. (Suakin to Khor Tamanib). 561 =Chrysanthellum procumbens= _Pers._ Glabrous procumbent or erect herb, up to 1 ft. high. Leaves alt., multifid, up to 1½ in. long; petiole subamplexicaul 1½ in. long. Capit. heterog., cymose; ray florets fem. ligulate, small. Kassala Prov. (Gallabat); White Nile Prov. (J. Arashkol); Kordofan Prov.; Upper White Nile Prov. (Meshra El Zeraf, southwards); Bahr El Ghazal Prov. (Jur-land); Mongalla Prov. 562 =Cotula anthemoides= _Linn._ Low, hairy, much branched annual. Leaves alt., deeply subbipinnatifid, ⅓-¾ in. long. Capit. heterog., yellow, discoid, solitary terminal; outer fl. fem., minute, in several rows. Berber Prov. (Nile Cataract; near J. Gerri); Khartoum Prov. =C. cinerea= _Del._ SHIA (Port Sudan)—Arab. Pale green, villose herb, 1-6 in. high. Leaves alt., pinnatifid, obovate or spathulate in outline, ¼-¾ in. long. Capit. yellow, heterog., terminal; fem. fl. few minute or more usually wanting. Red Sea Prov. (Port Sudan); Kordofan Prov. =C. Kotschyi= _Benth._ & _Hook. f._ HARR (Khartoum)—Arab. Hoary prostrate herb, up to 12 in. high. Leaves alt., obovate- pinnatipartite, ¼-¾ in. long. Capit. heterog., yellow, terminal; fem. fl. few, minute. Berber Prov. (Shendi); Khartoum Prov.; Blue Nile Prov.; White Nile Prov. (Geteina); Darfur Prov. =C. abyssinica= _Schultz Bip._ Pilose annual, up to 1 ft. high. Leaves alt., bipinnatipartite, up to 1¼ in. incl. the petiole, which is as long as the blade and half clasping. Capit. heterog., yellow, on 6 in. long peduncles; fem. fl. in 1 row, minute. Upper White Nile. 563 =Gynura cernua= _Benth._ Puberulous annual, 2-3 ft. high. Leaves alt., upper ones auriculate- amplexicaul, ovate or laciniate-lyrate, irregularly dentate or lobed, lower ones petiolate. Capit. purple, homog., solitary, terminal, on 6-12 peduncles; invol. bracts 1-seriate; fl. all tubular, some of the outer with imperfect anthers.