Thought this might be fungi related?

In an area we cleared for camp there are pioneer species coming back in to cover the dirt. This was an interesting spot and I am not sure what I am seeing.

1. The dirt is fairly hard packed around the area, but inside the circle it is loose and crumbly. Almost like worm castings.

2. There are small plants growing around the circle but not in it.

3. A plant from last year has died and dried up in the center of the circle. (brown)

4. It is hard to see but at the top right (about 1 oclock to three oclock) of the circle ,there appears to be some sort of fungi that has dried to a whitish grey color.

Any thoughts?

I see a dandelion, I see a celery-like seedling, I see a mustard gone to seed, I don't anything that looks like fungi. If you pick that dried up white crust and shake it, do spores blow off of it?

Miles - looks like it could be dried "dog vomit slime mold" (such a tasty name). This will grow on moist carbon materials. It's usually yellow when it's "active" (also leading to the name "scrambled egg slime mold") When it either gets too hot or too dry, this slime mold tends to dry into hard little pancakes that are greyish or tannish in color. I get this mold a fair bit where my drip irrigation systems meets my woodchip mulch. When dried, the pancakes are like little Frisbees.