Sun 2012-12-02 
What I think is a larva of the figwort weevil, Cionus scrophulariae (Coleoptera: Curculionidae). It was on a figwort plant (Scrophularia sp) growing beside the top lake.
This is probably another:
Photos taken in Whiteknights Park, Reading, UK, on 2012-09-06.
Sat 2012-12-01 
Orange slime mould fruiting bodies growing on decaying wood.
My microscope at x600 shows that the capillitium of these fruiting bodies consists of twisted strands with long tapered ends. This, combined with the orange colour, suggest the species is Trichia decipiens.
First photo taken in the Wilderness, Whiteknights Park, Reading, UK, 2012-11-30.
