285 
“A quarter of a century Pp aa the three volumes of the 
‘Flora of Tropical Africa’ issued by Professor Oliver from the 
fourth edited by myself. N othing more was claimed for the former 
than that they were a ‘repertory’ of what was known of ae vegeta- 
tion of the time, imperfect as that knowledge was. Dr. Stapf in a 
memorandum in the ‘Kew Bulletin’ for 1906 (pp. 239, 240) has 
brought out in a 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 already room for a sup- 
plement 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 confidently 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 staff to add further to our know- 
ledge 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 at: the regions into which the area 
of the F mito is divided, reference may be made to the preface to the 
seventh volu 
‘* The Farther collections made use of in “ae present volume and 
not previously acknowledged are as follows 
“J, Upper Guinea.—Aug. Chevalier, ak 5 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; R. E. 
Dennett, H. Dodd, G. C. Dudgeon, J. H. J. F arquhar, Dr. 
Lamborn, J. C. Leslie, T. D. Maitland, Mr. and Mrs. P. A. Talbot, 
EW: Thomas, A. H. Unwin, and J. L. Williams, Southern 
Nigeria; Dr. J. M. Dalziel, Col. E. J. Lugard, <i A. C. Parsons, 
B. E. B. Shaw, and C, C. Yates, Northern Nigeri 
“Tl, Norra pokes —Aug. Chevalier, Shui Region, Dar- 
-banda, French Congo, & 
“TIT. Nite Lanp. De. R. E. Drake-Brockman and R. J. 
Stordy, Southern Abyssinia; A. F. Broun, Sudan; M.S. Evans, 
ee and C. B. Ussher, Uganda; KH, Battiscombe, M. S. 
Evans, &. ee Ipin, D. E. Hu tchins, H. Powell, and W. 38. 
Rouiledye British Bast Africa. 
‘IV. Lower Guinea.—J. Gossweiler and 8 ap G. Wellman, 
Angola; E. E, Galpin, German South-West A 
“Vv, Sourn CrntraL.—Rev. F, A. seen and F, Thonner, 
—— Congo. 
ye © MozamBique Distr.—J. T. Last, Zanzibar; M. T. 
eee W. HJ ohnson, and J. Stocks, Portuguese East Africa ; 
M. Purves, Nyasaland; Mrs. O. Colville, E. E. Galpin, Miss 
L. S. Gibbs, Rev. a F. C. Kolbe, H. G. Mundy, and Rev 
Fk, A Rogers, Rh 
he set eotdinl xtkorowlsa te are due to Professor I. B. 
Balfour, Monsieur G. Beauverd, Professor A. Borzi, Dr. J. Briquet, 
Monsieur H. Courtet, Dr. A. Engle * r. J. W. C. Goethart, 
an J. A. Henriques, Professor H. Lecomte, Dr. C. A. M. Lind- 
, Dr. C. H. Ostenfeld, Professor R. Pirotta, Dr. A. B. Rendle, 
Profeste = Sabine, Professor E. Warming, Dr, R, Wettetein, 
