<< but we were wondering if >there a website that says species x, y, z are generally found in the Amazon >Basin, while in SE Asia, the following are found. >> Arizona Aquatic Gardens has basic continental locations on the plants they sell. For some of the info, you have to look at their color photo album. <A HREF="http://www.rosemart.com/aq-gardens/">http://www.rosemart.com/aq- gardens/</A> Bob Dixon