It is confusing; I've had two types over the years and years ago I had both at the same time and although both were Pellionia, they were quite different! My photos are both now at the database location for Procris repens.
This one was originally labeled Pellionia daveauana (Watermelon Begonia) and had small pointed leaves with pale central bands and brownish-green margins.
This one was originally labeled Pelliionia daveauana (Satin Pellionia) and had larger, broader, silver green leaves with dark veining and rounded leaf tips. I think I still have some of this one around here somewhere.
