G.H.Otth

Gustav Heinrich Otth (2 June 1806, Bern – 8 November 1874) was a Swiss mycologist and military officer. He was the brother of naturalist Carl Adolf Otth (1803-1839).

Known for his taxonomic research, Otth described Pucciniastrum, a genus of rust fungi within the family Pucciniastraceae. He was the binomial author of a number of species within the genus Peronospora.

The fungi genus Otthia (Nitschke ex Fuckel) is reportedly named after his brother, naturalist Carl Adolf Otth.

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