Marcela Mora, Tom Croat, Simon Mayo, Anna Haigh, Laura Reynolds and Lucinda Lay have produced a number of keys which we've put on the main CATE site (here - http://www.cate-araceae.org/media?class=eu.etaxonomy.cdm.model.descripti...)

I've extracted the character / state lists from the African and Philodendron Keys and put them here http://spreadsheets.google.com/pub?key=tZhVt3Jzoc1iOD2AEyqcnow&output=html

You're more than welcome to use these lists in your own projects (please cite the original authors if you do use them). If you would like to add a list of your own, or add comments, characters, or states to the list, please let me know and I can add them or better still, I can help you add them yourself. And of course, if you have a key, interactive or otherwise, that you would like to put on the CATE site, get in touch.

Cheers,
ben
(b.clark@kew.org)