Identification keys to Amazonian ferns
The main online key contains information on roughly 250 species of ferns that occur in lowland Amazonia. It is a multi-entry key, so the questions about the plant do not need to be answered in order. Just pick the questions that you find easy to answer and ignore the rest. All species are illustrated, so you can take a shortcut and check the photos of any species at any stage.
A separate key is provided for the genus Triplophyllum. More single-genus keys will be added in the future.
The pictures used to illustrate the keys were provided by Gabriela Zuquim, Hanna Tuomisto, Gabriel
Moulatlet, Michael Sundue, Robbin C. Moran, Glenda Cárdenas, Kari Kaunisto and Denise
The project was funded by the Academy of Finland.
The current key is an updated and expanded version of:
Zuquim, G., Tuomisto, H., Prado, J. & Costa, F.R.C. (2011) Identification key to the ferns of Uatumã - central Amazonia.