I think this is his 3rd time blooming it in as many years. The first year Don took to the Museum of natural history and science for display. It was a big hit, sort of speaking. He also tried to cross pollinate with the Huntington Gardens plant but it didn't take either way.
I had to look up the etymology of the name of this genus, and it actually did mean, what I, a bit hessitantly, thought: "Amorphophallus (from Ancient Greek amorphos, "without form, misshapen" + phallos, "penis", referring to the shape of the prominent spadix)".
Wouldn't then Am. titanum litteraly translated be: the misshapen, titan **** (pardon my french!)? And Am. mossambiciensis: ditto from Mozambique (Zimbabwe)? I somewhat wish I could delete the images forming on my inner screen!
I guess, the vultures where attracted by the sweet scent of the flowers (sweet...that is, if you are a vulture!)?