Kathy Willis on the side effects of effortlessly moving plants and seeds around the world.
BBC Radio 4 FM
Kathy Willis examines Charles Darwin's use of orchids as a scientific tool.
Kathy Willis explores the smuggling of rubber seeds from South America.
Kathy Willis examines the Victorian race to flower the Amazonian water lily.
How naturalist Joseph Hooker globally acquired species to build up the first maps of flora
BBC Radio 4
Out of the tragedy of the Irish potato famine in 1845, a new discipline in science emerged
How Kew's pressed plants collection established insights into plant relationships.
How plants proved a new route to political power and the growth of Britain's Empire.
Carl Linnaeus and a revolutionary grammar for plants.