PREFACE IX 



some of the more commonly employed alternative terms applied 

 to particular organs have been added in brackets after those 

 adopted in this work, so as to assist the student in correlating them 

 correctly. 



The account of the CycadacecB calls for a word of explanation. 

 It was hoped that this might have been prepared by Sir W. T. 

 Thiselton-Dyer, F.R.S. Circumstances have unfortunately frus- 

 trated the hope that his exact and extensive knowledge and his 

 practised judgment in dealing with the members of this interesting 

 and important order could be utilised in full. The work, none the 

 less, is still largely his. The material in the herbarium at Kew, 

 on which the account here printed is mainly based, has been arranged 

 and annotated by him with such care and critical insight that the 

 task of preparing that account has involved little moi'e than the 

 drafting of co-ordinated descriptions of the various genera and 

 species. 



In addition to those whose assistance has been acknowledged in 

 previous volumes of this work and whose collections have been 

 made use of in the preparation of the present section, thanks are 

 due to the following for material from the areas mentioned in each 

 case : — 



I. Upper Guinea. — M. Pobeguin, French Guinea ; N. W. 

 Thomas, Sierra Leone ; A. C. Miles, Gold Coast ; C. 0. Farquharson. 

 Southern Nigeria ; E. W. Foster, P. H. Lamb, A. J. Richardson, 

 and T. Thornton, Northern Nigeria. 



III. Nile Land. — E. Chiovenda, Eritrea ; R. E. Massey, 

 Abyssinia and Soudan ; R. E. Drake-Brockman, Somaliland ; 

 R. A. Diimmer, T. D. Maitland, W. R. Rutter, and J. D. Snowden, 

 Uganda ; E. Brand, W. J. Dowson, and A. Linton, British East 

 Africa. 



IV. Lower Guinea. — H. H. W. Pearson, Angola, Damaraland 

 and Great Namaqualand. 



VI. Mozambique Distr.— A. F. Appleton, Mrs. 0. Craster, 

 R. E. Fries, and S. Schonland, Rhodesia. 



For the loan or gift of types and other material thanks are also 

 due to Mr. A. Baudon, Professor A. Bertolini, Dr. A. Fischer von 

 Waldheim, Professor H. Lecomte, Dr. A. B. Rendle, and Professor 

 H. Schinz. 



The regions into which the area of this Flora is divided are defined 

 in the preface to Volume VII. For the detailed topography the 

 third edition the " Spezial-Karte von Africa," published at Gotha 



