Oyster Mushroom in Town

Oyster Mushroom  in Town

Observation - Oyster Mushroom in Town - UK and Ireland. Description: I came across this layer of mushrooms growing about 4 foot off the ground next to a busy road - hence the sooty colour but otherwise it would be white. It was oddly growing out of the rust of a metal shutter (or so it appeared - there was no wood or bric

I came across this layer of mushrooms growing about 4 foot off the ground next to a busy road - hence the sooty colour but otherwise it would be white. It was oddly growing out of the rust of a metal shutter (or so it appeared - there was no wood or brick). Thanks to all who identified them.