Who knows a lot about African botany

I need some research on African flowers, that are ONLY native to Africa, nowhere else. I've been doing research everywhere, but it's nearly impossible to just find some pretty flowers- suitable for a romantic bouquet. I'd like tropical-looking or rainforest like flowers, please! Lilies, blossums, passion-flowers. All the flowers I've found on the Internet so far are just plain ugly. Any info or links or pics would be appreciated. :)

-Um.... P.S. THEY MUST BE NATIVE TO AFRICA! Thanks. :)

Blue lotus was highly admired by the ancient Egyptian Pharaohs.