Partridge Berry

I thought this was mountain cranberry but I'm unsure; it seems like the plants grow together in clusters and the berry appears to be on the top of each stalk. Growing in mixed woods with many hemlock, white pines, oaks, maple and hickory. Each berry has two hole like opening on top of it; the insides are white and starchy looking with multiple tannish looking seeds. The berries are the size of small blueberries. The plant itself it short and doesn't really grow to far off the ground.