295 



found, and in the Northern Hausa States, though very little of the 

 gum is collected (Wallace, I.e. No. 551, 1907, p. 75) ; the bulk of the 

 product comes from N. Nigeria (Thompson, Col. Rep. Ann. No. 512, 

 1906, p. 20), and no Gum Arabic is collected within the limits of 

 S. Nigeria (idem, I.e. No. 554, 1908, p. 40, and Misc. No. 51, 1908, 

 p. 40). 

 >£ Ref. — "Acacia Senegal,' 1 in Med. PI. Bentley & Trimen, ii. No. 94, 



8 pages (Churchill & Son, London, 1880). "Acacia Senegal" in 



Med. Pflanzen, Kohler, i. 5 pages. "Acacia Senegal," in Diet. 



Econ. Prod. India, Watt, i. 1889, pp. 55-60. " Acacia VereJc" in 



Toxicologic Afric. Trop. Frang. ; De Rochebrune, ii. fasc. 1 (1898), 



pp. 175-177. " Gomme du Senegal," Heckel, in Ann. L'Inst. Col. 



Marseille, vi. 1899, pp. 18-29. " Acacia Senegal," Watt, in Agric. 



Ledger, No. 2, 1902, pp. 74-78. " Hashab tree (Acacia Verek)," 



Muriel in Indian Forester, xxviii. 1902, pp. 53-55 illust. " Acacia 



Senegal," in Les Veg. Utiles de l'Afr. Trop. Franc. Chevalier, Perrot 

 et Gerard, iii. pp. 57-60 (Challamel, Paris, 1907) ; " Egyptian Gum 

 Arabic Trade," in Bd. of Trade Journ. April 4th, 1907, pp. 12-13.— 

 " Acacia Senegal," in Bull. Imp. Inst. vi. 1908, pp. 29-60 ; Northern 

 Nigeria Gums, pp. 47-49, with analyses of samples from Bassa, Borgu, 



Geidam, Kano, and Bornu, p. 48. "Acacia Senegal," in Comm. 



Prod. India, Watt, pp. 16-18. 



Acacia Seyal, Delile ; Fl. Trop. Afr. II. p. 351. 



///. — Delile, Egypte, t. 52, f. 2 ; Hayne, Darst. Beschr. Gewiichse, 

 x. t. 30 ; Guimpel, Abbild. Beschr. t. 150 ; Nees von Esenbeck, 

 Plant. Med. Diisseld. t. 336 ; Wagner, Pharm. Medic. Bot, t, 179 ; 

 Berg. & Schmidt, Darst. & Beschr. Pharm. i. t. 6d ; Ralph, Ic. Carp, 

 t. 3, f . 7 ; Schweinf. in Linneae, xxxv. tt. 11-14 (A. fistula) ; Engl. & 

 Prantl, Pflan. iii. pt. 3, f. 66 (var. fistula) ; Engl. Pflan. Ost, Afr. 

 t. 20, f. G (pod) ; De Rochebrune, Toxicol. Afric. ii. fasc. 2, p. 201, 

 ff. 174-175 (pod & seed) ; Tropenpfl. 1901, p. 24 (habit) ; Sim, For. 

 Fl. & For. Res. Port. E. Afr. t. 35, f. B; Volkens, Notizblatt, App. 

 xxii. No. 3, 1910, p. 88, f. 13 ; Engl. & Drude, Veg. Erde, ix. f. 65 

 (var. fistula, branch with spines) ; f. 242 (habit). 



Vernac. names. — Dussa (Katagum, Datiiel); Karumga (Bornu, Bull. 

 Imp. Inst. 1910, p. 357); Talha (Arabic, Bull. Imp. Inst. I.e.) ; M'Salla ; 

 (Nile region, Grant) ; [M'Salla (Unyamesi) ; Seyal (Arabic) ; Talch 

 (Sudan); Mgunga, Nyika, M'piga-Kolubu (Mrima) ; Sofar (Arabic, 

 De Rochebrune'] ; Talh abiad, Soffar (Arabic [Kordofan], Bagu 

 (Hameg [Kordofan], Muriel, No. ij, Herb. Kew). — Suakim, Talca or 

 Talka Gum (Moloney, For. W. Afr. p. 345); Talh or Talha -inn 

 (Bull. Imp. Inst. vi. 1908, p. 37 ; Col. Rep. Misc., No. 63, 1909, p. 143, 

 144) ; Gomme Sennari, Gomme de Sennaar, Shittim or Shittar 

 Wood. 



Kouka [or Kuka], N. Nigeria (Fl. Trop. Afr. ii. p. 35J). 



Bure, near Lake Chad, N. Nigeria (Elliott, No. Ill, 1904, Herb- 

 Kew) ; Katagum (Dalziel, No. 47, Herb. Kew) ; Gorgoram, N. Nigeria 

 (Elliott, No. 163, 1904, Herb. Kew). 



Yields Suakim, Talca, Talha or Talk! gum arabic. This gnm in 

 commerce is usually classed as an inferior sort, bin it appears to bo 

 one of the principal Acacias yielding gum in the Nile region. 



The gum of M'Salla, according to Grant (Trans. Linn. Soc. xxix. 

 p. 68), is of a bright amber colour, flows freely from all wounds, and 

 as it dries becomes white and brittle like dried crumbs of bread. 



