PREFACE. 



striking way the immense progress it has made in the interval. "For 

 every three species then known, five species have since been added." 

 There is therefore ah^eady room for a supplement to the first three 

 volumes of more than equal bulk. It would not be becoming for me to 

 lay the burden on Kew. But it may be hoped that if, as may be con- 

 fidently expected, it is able to complete the *' Flora of Tropical Africa " on 

 the lines already laid down, substantial encouragement will not be 

 wanting from H.M. Government to enable the Kew stafi' to add further 

 to our knowledge of the vegetable resources of a portion of the earth's 

 surface in which as a nation we have so large a stake. 



For the amended definition of the regions into which the area of the 

 Flora is divided, reference may be made to the preface to the seventh 

 volume. 



The further collections made use of in the present volume and not 

 previously acknowledged are as follows : 



I. Upper Guinea. — Aug. Chevalier, French Guinea ; C. E. Lane- 

 Poole and C. W. Smythe, Sierra Leone ; Aug, Chevalier, Ivory Coast ; 

 J. Anderson, R. W. Brent, T. F. Chipp, A. E. Evans, A. C. Miles, 

 and H. N. Thompson, Gold Coast; K. E. Dennett, H. Dodd, G. C. 

 Dudgeon, J. H. J. Farquhar, Dr. Lamborn, J. C. Leslie, T. D. Mait- 

 land, ]Mr. and Mrs. P. A.' Talbot, N. W. Thomas, A. H. Unwin, and 

 J. L. Williams, Southern Nigeria ; Dr, J. M. Dalziel, Col. E. J . 

 Lugard, Dr. A. C. Pardons, B. E. B. Shaw, and C. C. Yates, Northern 

 Nigeria. 



II. North Central. — Aug. Chevalier, Chari Ilegion, Darbanda, 

 French Congo, &c. 



III. Nile Land. — Dr. R. E. Drake-Brockman and 11. J. Stordy, 

 Southern Abyssinia ; A. F. Broun, Sudan ; M. S. Evans. II. Fyffe, and 



C. B. Ussher, Uganda ; E. Battiscombe, M. S. Evans, E. E. Galpin, 



D. E. Hutchins, H. Powell, and \V. S. Iloutledge, British East Africa. 

 lY. Lower Guinea. — J. Gossweiler and Dr. F. G. Wellman, Angola ; 



E. E. Galpin, German South-West Africa. 



Y. South Central. — Ilev. F. A. llogcrs and F. Thonner, Belgian 

 Congo. 



YI. Mozambique Distr.— J. T. Last, Zanzibar ; M. T. Dawe, \V. H. 

 Johnson, and J. Stocks, Portuguese East Africa ; J. M. Purves, Nyasa- 

 land; Mrs. 0. Colville, E. E. Galpin, Miss L. S. Gibbs, Rev. Dr. F. 0. 

 Kolbe, H. G. Mundy, and Rev. F. A. Rogers, Rhodesia. 



The most cordial acknowledgments are due to Professor I. B. Balfour, 

 Monsieur G. Beauverd, Professor A. Borzi, Dr. J. Briquet, Monsieur 



