The original mushrooms looked like they may have been up for some time, and got into a state were they were already hard to identify confidently. The patina of mould didn’t help.
Growing in the gap between a garden wall and the pavement, this a a cut-leaved dead nettle. It’s not actually a nettle, and “dead” in that it doesn’t sting.
Growing on a tree stump, and contributing to the recycling of its material, sulfur tuft mushrooms. There’s a chance these can be found through the winter, with a bright colour which makes them easier to spot.