The first book illustrated with photography. Pioneering India's sugarcane crop. The discovery that genes move about within chromosomes.
These are all achievements made by women botanists in the 18th, 19th and 20th centuries.
The Wellington Botanic Gardens has a new display on at the Treehouse celebrating women in botany from across the globe who made historic advances in their field.
Reg Harris, a botanist and a guide at the Gardens who put together the display, joins Emile Donovan.