We found these flowers’ growing in bunches from a vine growing along the banks of a tropical river in Guatemala. The flowers are quite hardy and waxy. Before they bloom out they resemble small custer of bananas.
Sorry, the internet at the marina has been down. No unfortunetly this is the only picture that came out in our moving boat. But... I believe it has been identified. After more searching I came across a picture that is what we saw, Mucuna Sloanei. That picture shows it clearly so I am confident this was the plant!