I don't know anything about plants in the Genus Amorphophallus (Voodoo Lily) so I can't offer any advice but you may be able to find information in the database that might help with your research. http://garden.org/plants/searc...
Just out of curiosity, why will you call your book The Flowers of Darkness?
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!