Red Sea Prov. (near Suakin); Kassala Prov. (Gallabat); Berber Prov.; White Nile Prov. (Wad Shellai). =A. arabica= _Willd._ SANT, SNUT or SUNT—Arab; ALLWI (Goz El Siada)—Dinka; LENG—Burun; GARAD (Tagele)—Nuba. Large tree with straight spines, up to 2 in. long. Flower-heads globose, yellow. Pods white, tomentose, much contracted between the seeds. Pinnæ usually 3-12 pairs with or without gland between lowest and, at times, 1 or 2 upper pairs; leaflets 10-30 pairs, linear-oblong. North Sudan; Blue Nile Prov.; Fung Prov.; White Nile (from 10° N.L. Northwards, rare South of Jebelein); Kordofan Prov.; Upper White Nile Prov. (Goz El Siada). =var. A. Adansonii= _Guill._ & _Perr._ Differs from above in the pods, which are not or hardly contracted between the seeds. Kordofan Prov. (El Obeid). The young bark yields a fibre. Timber hard, heavy, density 0.945 heartwood and 0.827 sapwood, durable, short fibred and somewhat brittle, resistant to water and white ants, used for construction work and boat building, building, etc. The pods, called GARAD by Arabs, as well as the bark, used for tanning, a decoction is administered in dysentery. The pods are also used as a dye. The gum, although inferior to that of _A. Verek_, is an article of commerce; that from India is known as “Ghatti gum.” =A. verugera= _Schwfth._ KŪK—Arab; ABELAINY (Dilling), KWEILE (J. Eliri) & KUSSI (Kadugli)—Nuba; SHEBIL—Hameg; PUKULI—Bari; KOG (Kaka), TEP (Mongalla), TIP (Renk) & TIPAGOK (Bahr El Ghazal)—Dinka; TIAP—Shilluk; TEF—Nuer; DAGLIE—Zande. Very large tree with grey-white bark and with straight, white spines, 1½ in. long. Pinnæ 7-14 pair, leaflets 20-30 pairs. Flowers globose, white, about ¾ in. across. Pod up to 6 in. long, slightly curved, flat, thick, ¾ in. wide, green. Kassala Prov. (near Kassala); South of Lat. 13° N. Wood white, not durable. The qualities of the gum have yet to be investigated. =A. nubica= _Benth._ EL UT or AUD & LAOT—Arab; GAMEROT—Rashida; ANJERA (J. Daier), MAIN (Dilling), UNGUS (Tagele) & MA (J. Ghulfan)—Nuba; ANAN (Renk) & KONYAI (Kaka)—Dinka; AFIAD—Shilluk. Obconical shrub with spines ab. ½ in. long, somewhat recurved. Pinnæ 3-12 pairs with or without 2-3 minute sessile glands; leaflets 6-15 pairs, small, oblong. Pod linear-oblong, narrowed at each end, almost narrowly-winged, yellowish, 2-3 in. long. Flowers in globose heads on 1-3 axillary peduncles. Kassala, Red Sea, Blue Nile, White Nile & Kordofan Provinces. The bark is used for tanning. The bast yields a good fibre. =A. etbaica= _Schwfth._ ARRAD or GARRAD—Hadendowa and Rashida. Small tree; extremities at first red-brown; stipular thorns straight, short. Pinnæ 3-6 pairs, without glands; leaflets 14-30 pairs. Peduncles 3-5 in each axil, bearing rather few-flowered globose heads. Pods linear, compressed, almost straight, brown, glabrous up to 3½ in. long. Red Sea Prov. The bark is used for tanning.