Books by Henry Nicholas Ridley
Report on the botany of the Wo
Report on the botany of the Wollaston Expedition to Dutch New Guinea, 1912-13
Materials for a flora of the Malayan Peninsula
Malay plant names
Malay plant names
The Orchidae and Apostasiaceae
The Orchidae and Apostasiaceae of the Malay Peninsula
On the flora of the Eastern Co
On the flora of the Eastern Coast of the Malay Penisula
A monograph of the genus Lipar
A monograph of the genus Liparis