German botanist (1830-1901).
Gustav Friedrich Hermann Maass (2 December 1830 – 28 April 1901) was a German botanist who was a native of Brandenburg an der Havel. In 1848, he became an assistant to agriculturalist Hermann von Nathusius (1809–1879); further, from late 1849, he spent twelve-plus years in the military as an artilleryman in the 3rd Brandenburg Artillery Brigade, as a Brigadeschule instructor at Magdeburg and as an assistant to the brigade staff in Berlin. In 1862, he became a manager in the Magdeburgischen Land-Feuer-Societät in Altenhausen, a position he maintained until his death in 1901. In 1866, Maass was