yill PREFACE. 



5. South Central. This includes the upper Zambesi from 

 the Victoria Falls, Lake Ngami, and a vast area as yet unexplored. 



6. Mozambique District. Under this general term are 

 included, not only Mozambique proper, but Zanzibar, Zambesi- 

 land, and the coast region southward to the tropic. 



The more important collections contained in the Kew Herbarium 

 from Upper Guinea are the following : — 



1 . The plants collected by Dr. Theodore Vogel and his assistant 

 Mr. Ansell, on the Niger Expedition, organized by the African 

 Civilization Society, in 1841, and which formed the basis of the 

 ' Flora Nigritiana ' of Dr. Hooker and Mr. Bentham, published in 

 1849. Besides the numerous specimens collected on the banks of 

 the Niger itself, this collection includes many from Sierra Leone, 

 Fernando Po, Accra, and other points touched at by the expedition. 

 These, of course, have been already published in the work 

 referred to. 



2. The very large collections made by Mr. Charles Barter, 

 attached to the Niger Expedition under Dr. Baikie, in 1857, 1858, 

 and 1859, together with some specimens, sent home b}^ Dr. Baikie 

 himself. 



3. The yet more important collections, made by Mr. Gustav 

 Mann, under the auspices of the Admiralty, in Fernando Po, 

 St. Thomas and Prince's Islands, Old Calabar, Cameroons 

 mountains, Corisco Bay, Rivers Muni and Gaboon, and the Sierra 

 del Crystal. 



4. Collections made, chiefly in the neighbourhood of Abbeo- 

 kuta, by the late Dr. Irving. 



5. A collection from Old Calabar and neighbourhood, made by 

 the Rev. W. C. Thomson, and transmitted to Kew by Professor 

 Balfour. Besides the above, the Kew Herbarium contains 

 valuable sets from Senegambia, collected bj^Heudelot and Leprieur, 

 communicated to Sir W. J. Hooker by M. B. Delessert, through 

 his curator, M. GuiUemin ; and a few collected by M. Bid j em, 

 communicated by Count Franqueville ; and from Sierra Leone, 

 collected by Don, Whitfield, iVIiss Turner, and others. 



