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Philipp Wilhelm Albrecht Zimmermann (23 April 1860, in Braunschweig – 22 February 1931, in Berlin) was a German botanist.
He was a Professor of Botany at several different Universities (such as Leipzig and Tübingen).
He was a botanist and collector of fungi and spermatophytes, who worked in Indonesia and Tanzania from 1902 to 1919. He moved to Indonesia in 1896 and studied applied botany. In 1902 he moved to Africa to join the Amani Research Institute that was established that year. He returned to Germany after World War I in 1920. He wrote about the cultivation of coffee among other things related to botany, but most of his writings were destroyed during World War II.
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