Calvoa sessiflora

This pretty Melastomaceae has freckled leaves and a tendency to create little beads of moisture on its leaf surfaces.  At first it may look like pest damage, but it is not.  Other Melastomes sometimes to this as well, including Monolena primulifolia.  C. sessifolia can develop into a small bush around 18?, but is easy to trim back to a smaller size.  I can’t seem to find out much about this one! One online source said it is from Central Africa, but I cannot find any publications documenting its origins.