A BIBLIOGRAPHY OF AFRICAN FRESHWATER ALGAE 
237 
NIGERIA d' British Cameroons 
Ehrenberg 1856. 
Hustedt 1943; 1952. 
Mills 1932. 
Thorold 1952. 
Wittrock & Nordstedt 1893. 
Wittrock, Nordstedt & I.ager- 
heim 1903. 
Zanon 1941a. 
AYASALAND 
Burkill 1897. 
Cunnington 1920. 
Dickie 1879. 
Müller 1895; 1903; 1904; 1905; 
1911. 
Schraidle 1899a; 1901a, 
1902a,b. 
West G. S. 1907; 1912(\ 
ORANGE FREE STATE 
Groves J. & Stephens 1933. 
Hutchinson, Pickford A Schu- 
urman 1932. 
Stephens 1948. 
PRINCIPE 
Leuduger-Fortmorel 1898. 
REUNION 
Jadin 1893; 1934. 
RHODESIA 
Northern 
Erlandsson 1928. 
Southern 
Cholnoky 1954b,d. 
Eyles 1916. 
Groves J. & Stephens 1926; 
1933. 
Marloth 1913. 
Rich 1935; 1937. 
Rieh & Pocock 1933. 
Rousselet 1944. 
Schinz 1906. 
West G. S. 1910; 1918. 
RODRIGUEZ 
Dickie 1877. 
SAN THOME 
De Toni G. B. 1890. 
De Wildeman 1889b. 
Hariot 1908. 
Henriques 1886. 
Leuduger-Fortmorel 1898. 
SIERRA LEONE 
Leuduger-Fortmorel 1898. 
O’Meara 1876. 
SOCOTRA 
Dickie 1888. 
Kitton 1884; 1888. 
SOUTH WEST AFRICA 
Borge 1899. 
Brun 1891. 
Dinter 1909; 1918-1929. 
Erlandsson 1938. 
Esmarch 1911. 
Magnus 1890. 
Nordstedt 1888; 1900. 
Reichelt 1904. 
Rich & Pocock 1933. 
Schinz 1896. 
Vogel 1955. 
West G. S. 1912a. 
SUDAN 
Brook 1952; 1954. 
Brook & Rzôska 1954. 
Daday 1910b. 
Ehrenberg & Hemprich 1831. 
Grunow 1870. 
Provvse 1954. 
Rzôska, Brook & Prowse 1955. 
Schweinfurth 1862. 
TANGANYIKA incl. Zanzibar, Ma¬ 
fia and Pcmba. 
Borge 1928. 
Cunnington 1920. 
Daday 1907; 191Ga. 
Erlandsson 1928. 
• Esmarch 1911. 
Goebel 1898. 
Hicronymus 1895. 
Hustedt 1922. 
Lemniermann*& Jahn 1911. 
Müller 1895a,b. 
