Arent pieczarki also mushrooms?
They are. Seems that they are also the only mushrooms that are deemed edible by most English language natives ;)
Anyway, added. Of course I won't start adding every type of mushrooms right now, but this one should definitely be accepted.
BTW, all mushrooms are edible... but some only once ;)
Excellent humor, thanks !
In Russian, Nie jedim griby