vl PREFACE, 
Nyasaland; E. C. F. Allen, T. Gardner, Lord Kesteven and F. W. 
Sykes, Rhodesia. 
Once more I must record my acknowledgments of the aid given 
me by Assistants in the Herbarium of the Royal Botanic Gardens; to 
Mr. C. H. Wright, A.L.S., in preparing the manuscript for the press 
and in checking the proofs; and to Mr. N. E. Brown, A.L.S., for 
working out the geographical distribution. 
For the detailed topography the third edition of the “Spezial- 
karte von Afrika,” Gotha: Justus Perthes, 1893, has been chiefly 
used, 
Wt Toe 
Kew, March 31, 1906. 
