On line keys and databases
More and more information is nowadays being presented on internet. The sites presented here are all developed by or in close cooperation with the NHN or one of its branches.
Trees of Sungai Wain
Malesian Orchid Genera Illustrated
Interactive Key to Malesian Seed Plants
Tree Guide of the Guyanas
Climbers of Guyana
Plant diversity of the Guyanas
Flora of the Guianas
Amazon tree diversity
Macaranga and Mallotus from Borneo
Euphorbiaceae from Malesia
Euphorbiaceae from Thailand
Symplocos of the Old World
Rice fields weeds
Flora Malesiana index of collectors
George Clifford Herbarium
Petrus Cadé Herbarium
Guide to seed lists 1800 - 1900
