unidentified mushrooms

Description:

Three withered light brown mushrooms with dark brown cap centers, cap diameter ~ 15 mm. Gills were dark brown.

Habitat:

Suburban area on tropical upland plateau.

Notes:

Spotted in a grassy area next to a parking lot. I think I probably spotted these mushrooms past their prime. I expect had I spotted them a day or two earlier, the cap color would have been white, or cream.