Key to Gilled Fungi

1. Basidiocarp sessile or with a lateral stem............................................................................Group A

1. Basidiocarp with a central to eccentric stem

    2. Volva present, annulus absent............................................................................Volvariella bombycina

    2. Volva absent, annulus present or not

        3. Annulus absent on upper portion of stipe

            4. Edge of gills even

                5. Gills conspicuously decurrent to subdecurrent..................................................Group B

                5. Gills free or if attached, not decurrent

                    6. Spore print white to buff or pinkish-salmon ..................................................Group C

                    6. Spore print purple-brown to black............................................................. Group D

            4. Edge of gills notched or toothed like a saw or appearing eroded or torn

                7. Spore print pinkish or white

                    8. Spore print pinkish, cap bluish to violet, gill edges dark blue-black........... Leptonia serrulata

                    8. Spore print white, cap brownish-grey, streaked with dark, radial fibers; gills white,
                        may appear torn or eroded; white rhizomorphs at base of stalk...........Megacollybia platyphylla

                7. Spore print buff, cap pinkish-brown to brown, smooth; gills pinkish brown...Lentinellus omphalodes

        3. Annulus present on upper portion of stipe.......................................................................Group E