Venation on leaf at bottom left appears to vary from that on leaf at bottom right of photo 1. ?? 2 different plants? Smilax?
Agree with togata. There is at least one different leaf ..bottom left. Possibly Maianthemum bifolium? https://www.google.co.uk/search?q=M...Sw7AaqjYG4DQ&ved=0CAcQ_AUoAg&biw=1920&bih=967 Have a close look at the veins. Sorry cannot help with 2nd plant
I'll be interested to see the conclusive ID. I'm not having any luck coming up with something useful.