Aroiders: For those of you who have been discussing Xanthosoma in recent days I can concur that it is a taxonomic mess. I would encourage you to bring into cultivation as many species as possible and demand collection data where possible. This will be instrumental in a proper understanding of the genus. Dr. Sue Thompson is working on Xanthosoma but still has a long way to go to fully know them and I suspect that she has been reluctant to come forward in this discussion to avoid being bombarded with questions that no one can yet answer. I would further encourage you to send her material to cultivate because studying them alive is essential. Sue is on aroid-l. She works at the Carnegie Museum. Tom