German botanist (1878-1960).
Eugen Otto Wilhelm Ruhland (7 August 1878 – January 5, 1960) was a German botanist and plant physiologist. He served as a professor of botany at the universities of Tübingen and Erlangen. Ruhland was born in Schleswig where his father was a government official. After studies at Köllnisches Gymnasium in Berlin, he went to the University of Berlin in 1896. He received a doctorate in 1899 and habilitated in 1903. He then lectured at the University of Berlin and simultaneously worked on the family Eriocaulaceae and contributed to Adolf Engler's volumes on plants (volume 13). In 1911 he joined the