Great plant hunters
The striking arum lily has been known to European horticulture since at least the 1660s and is one of the world's most iconic and widely known plants.
Famous as the rat-trapping pitcher plant, Nepenthes rajah has some of the largest pitchers in the genus Nepenthes.
St Helena olive disappeared from the wild in 1994 and became extinct in 2003 when the cultivated seedlings and cuttings succumbed to fungal infections.
Native to China, handkerchief tree was once considered to be the Holy Grail of exotic flora, and seeds were first sent to England by the legendary botanist Ernest Wilson in 1901.
The Eastern Cape giant cycad originates from South Africa, is long-lived and slow growing, and is popular as an ornamental plant.
Darwin's fungus is a parasitic, golf ball-like fungus that was named in honour of Charles Darwin, who collected it in Tierra del Fuego during his voyage on HMS Beagle in 1832.
Native to west tropical Africa, Gardenia nitida is a small tree or undershrub with woody fruits and strongly-scented flowers.
Breadfruit is a tall tropical tree with divided leaves and large green to yellow fruits with an edible, starchy, white or cream-coloured flesh.
Clinging to an unstable cliff on a sharp mountain ridge, four tiny plants of the Ascension Island parsley fern, thought to be extinct for over 50 years, were discovered by conservation biologists in 2009.
When Charles Darwin was sent a specimen of the Madagascan Christmas star orchid in 1862, he predicted that since the nectar was at the bottom of the long flower spur, a pollinator must exist with a tongue as long...