Excellent and very informative article! If I ever get tired of hybridizing aroids, I might try hybridizing the tropical Crepe Myrtle (Lagerstroemia speciosa) with some as described in this article. I'm guessing either no one has tried it yet or they did try but didn't get success. In any event, that wouldn't stop me as I've tried crosses many times and met with failure until one day - success! "When in doubt, do the cross!"