I do a lot of fungi photography myself. They don't move around and aren't likely to sting either.
An important suggestion that was made to me in the past for close-up ohotography in the field is this:
Take the time to remove blades of grass or other debris from in front of the subjects and on them if you can without blemishing them. This one trick is easy and improves most close-up photos. Mushrooms are often a bit tender-skinned and scar easily so be careful.
I usually leave mine just as they are, unless I do just happen to have an obtrusive blade of grass or two as in the second photo. Good photos though and nothing beats a nice group of basidiocarps ("mushrooms," for the mycologically challenged).
I like the first but I find the oof grass a bit distracting in the second.
I normally carry tweezers and small scissors when out fungi shooting for this reason, sometimes a little paintbrush as well to brush off any distracting earth or whatever from the caps..