Thank you very much for your reply!
My idea was to detect it with an app first, and if it turns out to be an eatable one, to check it additionally with some local expert as I'm also terrified of possible incorrect identification and all that might cause, not even to mention the chance of deadly outcome.
However, thank you very much for your concern! I appreciate it a lot!
!ALIVE
!PIZZA
!LUV
!PGM