Zande „ 495 Krej „ 496 Indogo „ 496 Tuku-Tuku „ 496 Kaliko „ 496 Makraka „ 496 INDEX TO GENERIC NAMES 496 INDEX TO FAMILY NAMES 501 PREFACE In the Appendix of his Report on the Forests of the Sudan, published in 1901, Mr. C. E. Muriel, of the Imperial Indian Forest Service, gave a list of the more common trees and shrubs and of a few other plants, together with short descriptions and statements on their uses and economic value, also their Arabic and, where possible, the Hameg names. At the end of that year the Sudan Government gave me the appointment of Director of Woods and Forests. At that time only few of the volumes of the Flora of Tropical Africa had appeared and the earliest ones were already antiquated. During the numerous journeys taken by me in various parts of the Sudan, my wife and I were able to collect a large number of plants, making at the same time notes of their names in various languages of the Sudan, and their economic and other uses. I also received considerable help, as regards Golo names, from the late Mr. S. Skirmunt, then Deputy Inspector of Forests in the Bahr el Ghazal Province. By 1906 I had gathered sufficient material both from my trips and from the Kew Herbarium to draw up a rough “Catalogue of Sudan Flowering Plants,” giving short descriptions, a number of vernacular names and some economic and other uses, many of which were obtained from Watt’s Dictionary of Economic Products.[1] As it was somewhat hastily got up it was printed by the Sudan Government not for general circulation, but for the use of Sudan officials only. During the years which followed, up to my retirement in 1910, I was able to add to the list a considerable number of names both scientific and vernacular. I am indebted for the help I received, as regards Kordofan plants, to Mr. H. B. MacMichael, of the Sudan Civil Service, and, as regards the Red Sea littoral, to Mr. Cyril Crossland, at that time Marine Biologist to the Sudan Government.