Colour is accurate
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Wood Blewitt looks likely.
I couldn't find anything looking like this in Phillips - frustrating. I now see that although his text says they start bluish-lilac, the photos only show brownish specimens so I missed it.
Paul Seligman. Flickr: http://www.flickr.com/photos/paul_seligman_cardiff/collections/721576087...
Lat/Lng: 52.2046, -2.3862
OS grid ref: SO737563