10 MISC. PUBLICATION 4 01, U. S. DEPT. OF AGRICULTURE 



Orange Free State. Portuguese Guinea. Ruanda and Urundi. Senegal, 

 Spanish Guinea, and Togo. All of these, however, are covered by the 

 general floras of Africa — Flora Capensis. Flora of Tropical Africa. 

 Flora of West Tropical Africa — so far as their botany was known at 

 the time the works were written. The lists of species given by Engler 

 in Die Pflanzenwelt Afrikas should always be consulted for informa- 

 tion on the flora of these areas, as well as Chevalier's Enumeration 

 (1920) for the west coast region from Senegal to Calabar. 



On the whole, the principal countries in Africa most insufficiently 

 known or inadequately covered by published works are. to the north 

 of the Equator. *Rio de Oro. 2S Mauritania. Senegal. Portuguese 

 Guinea. French Guinea. Sierra Leone. Ivory Coast, Togo, parts of 

 French West Africa and French Equatorial Africa. Spanish Guinea. 

 Uganda. Kenya. "Eritrea. ^Ethiopia. ^French and ^British Somali- 

 land : and south of the Equator. *Xorthern Rhodesia. Xyasaland. *Mo- 

 zambique. *Bechuanalancl. and Orange Free State. A single compre- 

 hensive summary of the very extensive work done on the flora of the 

 Belgian Congo since the Durands' Sylloge of 1909 is also greatly to be 

 desired, as well as similar summaries for Algeria. Tunisia. Libya. 

 X.vasaland. and Uganda. 



Australasia.- 9 — The only general flora of Australia, that of Ben- 

 tham. is now over 60 years old. All the principal subdivisions 

 of Australasia, however, are provided with comparatively modern 

 lists or descriptive floras: New South Wales (Maiden and Betehe's 

 Census, 1916. and Moore and Betehe's descriptive Handbook, 1893) ; 

 Northern Territory (Ewart and Davies' keyed Flora, 1917) : Queens- 

 land (Bailey's descriptive Queensland flora. 1899-1902, and his Com- 

 prehensive Catalogue. 1913) : South Australia (Black's descriptive 

 Flora. 1922-29. as well as Tate's Census. 1889-95. and his keved Hand- 

 book. 1890) : Victoria (Ewart's descriptive Flora. 1930. and the Field 

 Naturalists 5 Club's Census. 1928-31) : Western Australia (Gardner's 

 unannotated Enumeratio. 1931) : New Zealand (Cheeseinan's descrip- 

 tive Manual. 1925) : Tasmania (Rodway's briefly descriptive Tas- 

 manian Flora. 1903). There are also a large number of substantial 

 local lists, and the flora as a whole can be regarded as more satisfac- 

 torily covered by published works than that of any equally extensive 

 division of the earth's surface except Europe. 



Insular floras. — Insular floras, from their compactness and aloof- 

 ness, seem to have had a peculiar attraction for botanists. 



Of the 17 Atlantic islands or groups of islands included in this 

 list, all are more or less well covered by existing lists, although only 

 one group (Bermuda Islands) has a modern descriptive flora. 



Of the 21 islands or groups of islands listed in the Indian Ocean. 

 the smaller islands as a rule are pretty well covered. Some of the 

 larger floras are comparatively old. Kurz's report on the Andaman 

 Islands dates from 1870 (with a subsequent nominal list by Kogers 

 in 1903), Baker's descriptive Flora of Mauritius from 1877 (with a 

 list of additions by Johnston in 1895). Balfour's Botany of Rodriguez 

 from 1879. Jacob de Cordemoy's Flora of Reunion from 1895, and 

 Kurz's Sketch of the Vegetation of the Xicobar Islands from 1876. 



2S Those marked with an asterisk are especially in need of floras. 



29 The term Australasia, as here used, refers only to Australia. New Zealand, and Tasmania, 

 the minor islands being listed under Insular Floras. 



