Lucid Phoenix Player
The Lucid Phoenix Player is a program that plays interactive 'dichotomous' identification keys in your web browser.
A Phoenix key can be thought of as a tree-like arrangement of questions. Depending on the answers given to the questions at each branch point, a user of a Phoenix key follows a path through the key, eventually arriving at an answer (an entity or taxon in the key). To try a Phoenix key click on the 'Demo Keys' link in the right hand side menu.
Lucid Phoenix Player
Download trial 
FAQs
Player help
Demo keys
Licensing the Lucid Phoenix Player