your thallose liverwort is Lunularia cruciata. Pellia spp. don't have the little pores over the upper surface and only this species has the half-moon shaped gemmae cups on the upper surface.
Your big flowering plant is a giant Hogweed - Heracleum mantegazzianum agg. - there is considerable debate over the identity and names of this group of rather invasive huge hogweeds. It is a bigger plant than our native species and the leaf lobes are more jagged and pointy.