This is a closeup of a leaf of Purple Prince (A. longiloba), it does;t have any serration or incised leaf margins at all but you can see the purple
This is one of my xAmazonicas (aka Polly)
This is my Alocasia sanderiana. Much more deeply incised than xAmazonicus
This is a planter with A. longiloba (aka 'lower' and 'grands') (the lighter grey-green one in back) and A. longiloba 'Purple Prince' (the rounder darker one) in front