You need to get a decent shroom identification book such as Psilocybin Mushrooms of the World by Paul Stamets.
ID by taking spore prints, check for bruising, gill colour, and other features etc.
I know little about mushrooms, but enough to know I'm not convinced by those.
To me they look like the common parasols you find in any field.
If you're looking for non-magic ones, well I guess you probably found some, but still you'll need a proper ID book, and if they're random mushrooms they're most likely nutritionally and medically useless, sorry!

P.s. also you should cut them at the bottom of the stem, not pull them out.
Everything I write is fictional roleplay. Obviously! End tribal genocide: www.survival-international.org Quick petitions for meaningful change: www.avaaz.org/en/
End prohibition: www.leap.cc www.tdpf.org.uk And "Feeling Good" by David D.Burns MD is a very useful book.