Spectacular Rustgill

Spectacular Rustgill

Observation - Spectacular Rustgill. Description: Tight group of large yellowy-orange mushrooms growing in wood chips near shrubs on a traffic island. Caps up to about 11 cm across, with holes where something (slug?) had been eating them revealing dull yellowish flesh. The caps were a patchwork of orang

Tight group of large yellowy-orange mushrooms growing in wood chips near shrubs on a traffic island.
Caps up to about 11 cm across, with holes where something (slug?) had been eating them revealing dull yellowish flesh. The caps were a patchwork of orange-brown, yellow and white patches (maybe as a result of being nibbled?). They were convex but almost flat. A few drops of KOH on the cap turned very dark reddish brown.
The stems were fused together at the base and were pale at the top, had a distinct rust-brown ring peeling downwards and were covered in yellow fibres, especially towards the base. The specimens I brought home had stem measuring 5 cm tall, 1.2 cm diameter at top and about 1.8 cm at base.
The gills were yellowish-brown and slightly decurrent. They looked more orangey after being in the house for a few hours.
A fragment of gill tasted quite bitter. The mushrooms smelt pleasantly mushroomy.
Cystidia (not sure where on the gills they were from) were shaped like skittles with a little knob at the top.
The basidia were 4-spored. The spore print was a rich brown colour. The spores were more or less oval with roughened edges and surfaces, brown in Melzer's reagent and measured 8-10 x 5-6 microns (based on sample of 60 spores, discarding highest and lowest measurements).