Fri 2014-03-07 
What is probably Diatrypella quercina growing on a twig from an oak tree (Quercus sp).
I took the following specimen:
This yielded the following spores (magnification x600, field width 86um):
These are strongly curved and about 9 x 2um which agrees well with the "strongly curved, 8-12 microns long, 2-3 microns wide" given here at Pilzbestimmer.de.
First photo and specimen taken in Whiteknights Park, Reading, UK, on 2014-02-22.
Wed 2014-03-05 
A grey crust fungus, probably Peniophora cinerea, growing on a fallen beech branch (Fagus sp).
I took the following specimen home with me:
It yielded the following spores (magnification x600, field width 86um):
These are about 9.5 x 3.5um which is at the large end of the range 7-9(-10) x 2.5-3.5um given for Peniophora cinerea given here at MycoBank.
First photo and specimen taken in the Wilderness, Whiteknights Park, Reading, UK, on 2014-03-02.
Thu 2014-02-27 
Tremella mesenterica growing on a branch from a broad-leaf tree.
I took the following specimen home with me:
And it yielded the following spores (magnification x600, field width 86um):
The large ellipsoidal spores are about 13.5 x 9um which agrees well with the range 10.0–16.0 x 6.0–9.5um given for Tremella mesenterica here. The numerous small spores may be contamination from the green lichen that covered most of the branch.
First photo and specimen taken in Whiteknights Park, Reading, UK, on 2014-02-15.
Tue 2014-02-25 
Cramp balls fungus, Daldinia concentrica, growing on the end of a decaying beech log (Fagus sp).
Photo taken in the Wilderness, Whiteknights Park, Reading, UK, on 2014-02-15.
Thu 2014-02-20 
An unidentified yellowish crust fungus on a branch fallen from a beech tree (Fagus sp).
I took this specimen home with me:
This yielded the following spores (magnification x600, field width 86um):
These are about 13 x 6um.
First photo and specimen taken in the Wilderness, Whiteknights Park, Reading, UK, on 2014-02-15.
