Sun 2013-11-03 
The asexual fruiting bodies of a Nectria sp, probably a member of the Nectria cinnabarina group of species (see here for a recent account of this group). They were growing through the bark of a recently felled broad-leaf tree.
The sexual fruiting bodies look like small raspberries:
The two forms do sometimes grow together:
Photos taken above Hutton Village, near Guisborough, North Yorkshire, UK, on 2013-09-12.
Sat 2013-11-02 
A female Sargus bipunctatus (Diptera: Stratiomyidae).
The following photo shows the reddish front part of the abdomen which is only present in the females of this species:
And this photo of a different female (taken a week earlier) shows the two white spots (headlamps) between the eyes:
These white spots are present in both males and females.
Photos taken in Whiteknights Park, Reading, UK, on 2013-09-18 (the first two) and 2013-09-10 (the last one.
Fri 2013-11-01 
What I think is dyer's mazegill fungus, Phaeolus schweinitzii.
The underside looks like this:
Photos taken at the top of Bousdale, near Guisborough, North Yorkshire, UK, 2013-09-14.
Wed 2013-10-30 
A yellow disco fungus, probably Bisporella sufurina.
I took this specimen home with me and from it obtained the following spores:
With magnification x600 the image width is about 86um so these spores are about 8 x 2.5um. This matches the range 8-11 x 2-2.5um given for B. sufurina here and is distinctly smaller than the 9-14 x 3-5um given for the commoner Bisporella citrina here .
First photo and specimen taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-10-26.
