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P K E F ACE 



TiiE first Section of Volume V was published in 1012. The 

 second Sectioij now at last completed^ fell under the shadow of 

 the Great War, Two Parts w^ere, however, issued in 1915 of 

 which the contents had been slowly maturing. Of these the 

 Thjjmrliieacem were contributed by Mr. C. H. WiaauT, A.L.S., the 

 Penseacese by Miss Edttii Layako Stephens, B.A., of the Botany 

 Department, South African College, Capo Town, the Lorontliaccse 

 hy Mr. T. A. Sprague, F.L.S., and the Santalacese by Dr. Hill, 

 F.R.S., the Director of the Royal Botanic Gai'dens, Kew. The 

 vast order Eu^thorhirtcpw, wdiich bulks so largely in South African 

 vegetation, required prolonged study; the genus Euj>horhia was 

 undertaken by Mr. N, E. Brown, A.L.S., who is an authority 

 without a rival on Succulent Plants, and Sir Davtd Puain", 

 Treas. B.S., divided, with Mr. John Hutciiin'Son', F.L.S., the 

 remaining genera. Eor the present part, Mr. N. E. Brown also 

 undertook Urficaeese and Mr. Hutchinson Mi/ncacese as well as 

 the genus Ficus. The Betidaetse and Sallcinese are contributed by 

 Mr. S. A. Skan. 



During the remainder of the War, work on the Flora was in 

 abeyance, but in 1920 a third Part was published not without some 

 difficulty. The cost of printing had enhanced greatly. Part HI 

 contained nine sheets and these " have cost within a few shillings 

 of the total cost of Parts I and II," which aggregate twenty-four 

 sheets. 



The preface to Section 1 commemorated the loss of many whose 

 generous assistance and co-operation have made the preparation of 

 the Flora possible. Two more — and, as will be seen below, both 

 coiitributors of material — must be added to the obituary list. 

 Hknkv Hakold Welch Pearson, P.R.S., Harry Bolus Professor 

 of Botany in the South African Culloge, and Hun. Director, 

 National Botanic Gardens, Cape Town, died on 3rd November, 

 1916 (obituary notice and bibliography, Kew Bulhiin^ 1916, 

 pp. 271^281). Sir Isaac Bayley Balfour, KB.E., F.R.S., Pro- 

 fessor of Botany in the University of Edinburgh, died 30th 

 November, 1922 (obituaiy notice and bibliography, Ke.o Bidleiin, 

 1923, pp. 30-35), 



For the limits of the regions under which the localities are 

 cited, reference may be made to the Preface to Vol. VI ; for the 

 maps which have been used to tlic Preface and Section 1 of VoL V. 



