That is a nice green. Don't think it is in scoly family. Could be trachyphyllia geoffroyi. Generally don't see that shade of green as the only color. Nice piece.
Thanks Tab. I fell I love with it a week ago but walked away. I came back a week later and it was still there so it went home with me. It actually expanded about 1/3 more than it was in the lfs tank. The color is even more stunning in person but I can tell you what you see in the picture, is pretty close to what your see in my tank. The pic just doesn't quite have the glow.
After looking up that name, I think you nailed it.