I purchased a plant at my local nursery. After I put it in the ground at home I noticed a weird lichen-like (?) plant growing at the base. I returned this to the pot it came in with some soil. It's now growing there albeit slowly. I have never seen anything like it. I tried researching it, but really don't know where to start. It is green and red, approximately 3 inches in diameter now, totally flat, rosette (floral) shaped (like many lichen), but feels more like a succulent. It has these cup-shaped growths on it and if you look closely (I used a loupe) there are little green plants (?) growing in them. What is it?