I am not experienced with mushrooms, and I hope you still have the species sample that you took. While searching online, I found that MycoKeys is a website/plugin for identifying fungi. It requires you to know where you found it, what it feels like, size of cap (measured), color, cap surface, veil, and a few other identifying features. Some of these can be observed from a picture but having a hands-on observer (you) will probably help identification. Here is a picture to explain some of the terminology:
The diagram when performing identification on the website is more detailed.