Well id reference pics u find here and elsewhere of psychoactive mushrooms with the dried ones you get, before you ingest them of course, lol.
Have you tried hunting for shrooms? That may be more prommising than hoping u get the goods from a shifty charicter; but you never know till u know, he could be legit. And of course, blueing is not allways a clear indication but it helps.
Hope you discover the truth sooner rather than later; and if your too lazy, just put the emergency services on speed dial and chow down, hehehe.