futurenets, The plant in your photo is the
Split-Leaf Philodendron (Monstera deliciosa)
Excuse the not so great image below but I cut a stem from my Monstera deliciosa plant and tried to annotate the different parts. Do you recall if the leaf you planted had a thick piece of stem attached? It doesn't need to be a large piece, just a small portion may be all that's needed for roots to form but if all you planted was a single leaf with only the leafstalk (petiole) attached and not part of the plants stem, I don't think it will take root. Please keep us posted on the outcome!
