that one is call metallic mushroom.  the polyp looks like a ricordea but is more pointy rather than round like yuma ricordea,  waita minute...looking at the size..that couldn't be...so my conclusion is a giant green hairy mushroom (polyp is thicker than a regular hairy mushroom, like ricordea).  if this thing grow to about the palm of your hand...than it's the giant green hairy mushroom, but if it stay small then it's the metallic mushroom