caption death_date death_place birth_place nationality field birth_date known_for image article_title author_abbrev_bot name
robert brown in 1855 10 june 1858 17 england dean st , soho square , london , montrose , scotland scottish botany 21 december 1773 brownian motion robert brown -lrb- botanist -rrb- . jpg robert brown -lrb- botanist -rrb-
 r.br . robert brown
robert brown -lrb- botanist -rrb-

robert brown -lrb- 21 december 1773 -- 10 june 1858 -rrb- was a scottish botanist and palaeobotanist who made important contributions to botany largely through his pioneering use of the microscope .
his contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming ; the observation of brownian motion ; early work on plant pollination and fertilisation , including being the first to recognise the fundamental difference between gymnosperms and angiosperms ; and some of the earliest studies in palynology .
he also made numerous contributions to plant taxonomy , including the erection of a number of plant families that are still accepted today ; and numerous australian plant genera and species , the fruit of his exploration of that continent with matthew flinders .
