Fungus in pot plant

Fungus in pot plant

Observation - Fungus in pot plant - UK and Ireland. Description: Is this going to kill the pot plant or is it going to improve the soil? The soil is a mix of commercial compost and re-cycled brown field containing coal slag and clay with part digested green waste. I can look into the stem and gills if this is needed.

Is this going to kill the pot plant or is it going to improve the soil? The soil is a mix of commercial compost and re-cycled brown field containing coal slag and clay with part digested green waste. I can look into the stem and gills if this is needed.

I am adding some more pictures of it now it has faded showing the under side.