Olive Mary Hilliard

Olive Mary Hilliard (née Hillary, 4 July 1925 – 30 November 2022) was a South African botanist and taxonomist. Hilliard authored 372 land plant species names, the fifth-highest number of such names authored by any female scientist.

Hilliard was born in Durban on 4 July 1925. She attended Natal University from 1943 to 1947, where she obtained an MSc and later a PhD. She worked at the National Herbarium in Pretoria in 1947-48 and was a lecturer in botany at Natal University from 1954 to 1962. In 1963 she became curator of the herbarium at Natal University and a research fellow. Her special fields of interest were the flora of Natal and the taxonomy of Streptocarpus, Compositae and Scrophulariaceae.

In 1964 she formed a professional and personal collaboration with Brian Laurence Burtt (1913-2008) who played a large part in the revitalising of a moribund Royal Botanic Garden Edinburgh. Their collaboration resulted in numerous papers and three books, Streptocarpus: an African Plant Study (1971), The Botany of the Southern Natal Drakensberg (1987), and Dierama: The Hairbells of Africa (1991).

Hilliard died on 30 November 2022, at the age of 97.