Another orange fungus, this time probably Nectria peziza, growing on a rotting branch from a broad-leaf tree.
I took the following specimen:
This yielded the following spores (magnification x600, field width about 86um).
The spores are about 17 x 6um which is slightly longer than the 12-15 x 5-7um given for N. peziza spores at Rogers Mushrooms.
I also found the following ascus (also x600 and field width 86um):
This is about 80 x 8um which agrees well with the 75-90 x 8-10um given for N. peziza asci at Rogers Mushrooms.
First photo and specimen taken in the Wilderness, Whiteknights Park, Reading, UK, on 2013-12-30.