It looks like Armillaria mellea, but I can't say for sure.
You need to take a spore print, then you need to take detailed recordings of the general size and description of the pileus, the stipe, and the gills, you also must note the region the mushroom was found in, what season it was found, as well as the medium which the fungi was growing on, then take photographs of the fungi, good pictures of the pileus and gills, detailed pictures of the stipe and annulus (if annulus is present) and post these new detailed photographs with the accompanying information, and you will be MUCH more likely to find an identification.
Its NOT gymnopilus spectabilis if that's what your thinking...
I'm really burned out on fungi at the moment, and I have been researching other things, so sorry if I'm not very enthusiastic to provide a long detailed response, the last post before mine basically says it all.
(To take a spore print you must remove the cap, and set it face down on a blank piece of paper, allow the cap to sit undisturbed for at least 6 to 8 hours, I generally will place the cap on the paper (gills down), and leave it there until the next morning. When you remove the cap a "spore print" will be left on your paper. (Sometimes I will take 1/2 a piece of black paper and half a sheet of white paper and place the cap so it's resting with half its diameter on each color, this is for contrast or for light spored species ) ( spore prints can be taken and can be saved on aluminum foil as well )
(Its also good to have a microscope handy, when I was in the study of Panaeolus cinctulus, syn. Panaeolus subbalteatus and Panaeolina foenisecii fungi at times it was difficult to distinguish the spore prints colors from one another, one is Brown, the other is jet black, I was having issues by eye and had to place the spores under a microscope, one species has smooth spores, the other species spores have distinguishing "bumps", so this simple look under the microscope gave me a confirmed identity, you probably learned how to use a microscope in middle school, nothing here is any more complicated than that. )
-eg