Blackening waxcap?

Blackening waxcap?

Observation - Blackening waxcap? - UK and Ireland. Description: Growing on short grass where sand dunes border a rocky bit of coast. The fully backened cap makes me think it is H. conica but the stem, which shattered and felt gooey when I picked it, appears to be hollow and looks more like H.conicoides.

Growing on short grass where sand dunes border a rocky bit of coast.

The fully backened cap makes me think it is H. conica but the stem, which shattered and felt gooey when I picked it, appears to be hollow and looks more like H.conicoides.