Collection location: Cook Co., Illinois, USA [Click for map]
Xerulas are Eastern mushrooms, with broad flaring caps, white gills and spores, and extremely long rooting stipes (the missing portion in this photo was sketched in by the photographer).
Xerula megalospora is on the right. It has a pale, orange-brown cap, an unadorned stipe and non-marginate gills. It also has very large, lemon to bean shaped spores.
These Xerulas were displayed at the Illinois Mycological Association 2006 Fungus Fair.