Spring Agrocybe - Agrocybe praecox species cluster - dark brown spore print
Unknown mushrooms - dark brown spore print
The whitish material along the margin of the cap are remnants of the tissue the covered the gills before the cap fully opened (called a partial veil). A lot of species in the genus Psathyrella show this feature. They were also pretty tough, becoming even tougher upon drying. Mushrooms in the genus Psathyrella tend to be fragile. Maybe a species of Psilocybe. Though the genus name, Psilocybe, refers to the lack of a veil on the cap. Plus no blue staining which many species show.
Entoloma sp? - Pinkish Brown spore print
Unknown Mushroom - White spore print
Unknown mushroom - no spore print obtained
Lesson for the day - quality, not quantity; too many mushrooms, too few field notes.