Mycorrhizal Relations began 460 million years ago, a movie by PixelSoft Films http://www.pixelsoftfilms.com/index.php?option=com_content&task=view&id=36&Itemid=47 Requires Adobe Flash Player http://www.adobe.com/products/flashplayer/ or http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash
Richard, Thank you very much for finding this short film. I just finished watching it and it was great. Please keep up your research. You provide a wealth of information for all of us maple and plant lovers. Sam