This charming little Marcgravia is a smaller species, capable of producing larger leaves in terrarium conditions but most often keeping the 1/4 leaves. Foliage is a nice scalloped shape with purple new growth. As the plant matures, it will take on a purple-green.
*note* there are two species of Marcgravia in the images shown here. Only the small, purple-green one is sp. Peru. The larger, solidly green one is rectiflora. They could not be separated for the picture 😉