Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
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I would say it's almost certainly one of the Coprinus genus, but they're difficult when they start to go over like this.
In other posts of fungi, you'll see that pictures of stem and gill,knowledge of the habitat (especially nearby trees), odour, and colour changes are all important to put a name to one.
You need to add a scientific name - add a revised identification, then when a match appears for the common name you're typing, click on it (spaces and hyphens can cause confusion!). Then click "Get Recommended".
Many thanks for the useful tips about identifying fungus - didn't realise it could be so complicated, but that's why I am using iSpot - to learn! We just happened to see this in it's "pretty" state - it's now pouring with rain so I don't fancy venturing out, so I'll stick with the "Coprinus" but next time I come across a fungus I'll try and collect as much of the info you have listed to help ID it.
Revise the identification for this one - either Shaggy Ink-Cap or just a "Coprinus" without committing to a species.
Go for it!
And have fun using the site. We're all here to learn.
Lat/Lng: 53.0525, -2.1589
OS grid ref: SJ894505