278 



Sierra Leone Copal is obtained from this tree (Kew Bull. 1888, 

 p. 281) ; valued 1909 at 6±d. to Is. lid. per lb. (Col. Rep. Misc. No. 63, 

 1909, p. 171). 



The gum copal industry of Sierra Leone is stated to have been for 

 some years past on the decline, and with a view to its re-establishment 

 the Government in 1909 were taking steps to raise and distribute on 

 a large scale young plants for planting out in Government Reserves 

 and various parts of the Protectorate (The Sierra Leone Govt. Gaz. 

 Nov. 20th, 1909, p. 715). 



Bef. — "Some observations on the Copals of Western Africa," 

 Daniell, in Pharm. Journ. [1] xvi. 1857, pp. 367-373 and pp. 423-426. 



" Observations on the Origin and the Geographical distribution of 



the Gum Copal in Angola," Welwitsch, in Journ. Linn. Soc. ix. 1867, 

 pp. 287-302. " Copals de L'Afrique occidentale," (0. Guibourtiana, 

 Bth.), in Gommes, Resines, De Cordemoy, in Ann. L'Inst. Col. 



Marseille, vi. fasc. 2, 1899, pp. 113-123. " Copal Resin from Sierra 



Leone," in Col. Rep. Misc. No. 63, 1909, pp. 175-176. 



There are no specimens of Copaifera from Nigeria in the Kew 

 Herbarium, but the genus is of interest here as producing the true 

 " Balsam of Copaiba " in Brazil (C. Lansdorffii, Desf.), Venezuela 

 and Cent. America, &c. (C. officinalis, L.), British Guiana ((7. Martii, 

 Hayne, and C. guianensis, Desf.) &c. ; as well as the " Sierra Leone 

 Copal " mentioned above, " Inhambane " or " Mozambique Copal " 

 (C. Gorskiana, Benth.), " Accra Copal," " Congo Copal," and possibly 

 other African Copals are obtained from the species of this genus. 



CYNOMETRA, Linn. 



Cynometra Mannii, Oliv. Fl. Trop. Afr. II. p. 317. 



Old Calabar ; Lagos. 



Wood close grained and heavy (Moloney, For. W. Afr. p. 337) ; has 

 a specific gravity 0*9219 = 57*6 lbs. per cubic foot. 



Bef — Cynometra Mannii, Harms, in Notizbl. App. xxi. No. 2, 

 1911, pp. 35-39. 



BURKEA, Hook. 



Burkea africana, Rook, f ; Fl. Trop. Afr. II. p. 320. 



Ill— Hook, Ic. PI. tt. 593-594 ; Warburg, Kumene Exped. p. 245, 

 f. 98 (habit) ; Transv. Agric. Journ. iii. t. 10 (habit) ; Engl. & Drude, 

 Veg. Erde, ix. p. 436, f. 371 ; p. 597, f. 516 (habit). 



Nupe ; Banks of Guarara River. 



Yields a gum, Gold Coast (Dudgeon, Herb. Kew). The gum is 

 described as occurring in semi-transparent tears— pale yellow to red- 

 dish-brown, of fair quality but inferior to that of Acacia Senegal. 

 It would probably be saleable at about 15s. or 16s. per cwt., and if 

 possible to collect it cheaply might be worth some attention (Col. 

 Rep. Misc. No. 63, 1909, pp. 153, 154). Wood good for wagons and 

 cabinet work (Rhod. Agric. Journ. viii. 1910, p. 208). 



Bef. — " Burkea africana, Hook.," in Les Vegetaux Utiles de 

 l'Afrique Trop. Franc. Chevalier, Perrot et Gerard, iii. pp. 82-84. 



Erythrophloeum, Afzelius. 



Erythrophloeum guineense. Don ; Fl. Trop. Afr. II. p. 320 pro. parte. 



III. — Guillem. Perr. Rich. Fl. Senegamb. t. 55 (Filloea suaveolens) ; 

 Ralph, Ic. Carp, t; 9, f. 2 ; Bertoloni, PI. Mozambique (Mem. Accad. 

 Inst. Bologna, ii. 1850) p. 10, t. 3 (Mavea fiidicialis) ; Engl. & Prantl, 

 Pflan. iii. pt. 3, f . 75 D-F ; Ann. Inst. Col. Marseille, 1907, pp. 172, 



