Hi,
Found these on open grassland and my first thoughts were
Psathyrella.
Provided this is the case, could anyone suggest a possible species [I know that's probably asking a lot without microscopic analysis]. Obviously, feel to correct me if barking up the wrong genus.
Spore print - dark
Gills - adnate, dark
Cap - conical, hyrgrophanous, darkening at margins.
Odour - unremarkable


Cheers, Simon