Here is a great website for info about orchids:
This website has tons of downloadable floral wallpaper, including orchids:
http://www.flowerpictures.net/wallpaper/wallpaper.htm
Lastly, thanks to these websites for providing the images used in Purple Orchids:
Heckeroth Orchids: Paphiopedilum, Miniature Cattleya, Lycaste
Island Style Orchids, Tropical Flowers & Tropical Plants
