please follow the website. It is useful to identify mushroom.

http://www.mushroomexpert.com/

Good website that Dr Partha share it.

try getting some spores and try to ID in a good Microscope

It is one of the species of Macrocybe. Note that additional photos of the underside and stalk base are needed for identification of most mushrooms. In this case, you would need to know if there are scales on the stalk (stipe) and whether there is a pseudosclerotium (a tuber-like growth) at the base. See the attached publication and key.

If it has a long subterranean stipes connected to an old termite nest, it could be a Termitomyces sp. A spore print would help.

Please follow Dr. Lodge's recommendations to improve your chances of an accurate identification.

I considered Termitomyces but the margin of the cap and the flesh of the pileus seem thick, which is more like a Macrocybe than Termitomyces, but certainly worth checking.

This mushroom was grown in the wooden log at the backyard.

Then Macrocybe is the most likely genus.

You should upload more pictures. It could be useful for a macroscopical identification of the mushroom.

It looks like Macrocybe for me.

I am not sure that the agaric is really a Macrocybe species (rather a Termitomyces ?)

But the most important macro and microdata are missing.....