New Fungi Species - Wood Mushroom (Agaricus sylvicola)

I have wondered why I have not seen more fungi from the Agaricus genus here - not even the relatively common Field Mushroom. In fact prior to this find the only Agaricus I have recorded is the relatively uncommon grassland species Agaricus comtulus. This Wood Mushroom was in the compost heap in the West Field and I am pleased to say I used my new found microscopy skills to help confirm the id including spore measurements.