Dutch botanist, physician and university professor (1825-1906).
Corneille Antoine Jean Abram Oudemans or Cornelis Antoon Jan Abraham Oudemans (7 December 1825 – 29 August 1906) was a Dutch botanist and physician who specialized in fungal systematics. Oudemans was born in Amsterdam, the oldest of seven children of his namesake teacher father and Jacoba Adriana Hammecker. A younger brother, Jean Abraham Chrétien became an astronomer and a nephew, Anthonie Cornelis, became a zoologist. Oudemans went to school in Weltevreden, Java, where his father taught and moved back to Amsterdam for classical studies. He then went to the University of Leiden where he rece