Spotting

Description:

picked one small and one medium specimen which are first two measurements in ranges. third measurement in range is guess at larger specimen. Cap: diam: 3-5.5-16cm height 1.2-1.5-? cm. shape of cap: convex to flat, many bigger ones with negative curvature. surface is light brown, lightening in age. slightly damp. margin is entire. interior cap flesh is white 6mm think at thickest in 5.5x1.5 specimen. smells is like Agaricus bisporus. gills: free to adnexed. close. gill edge wavy. light brown. partial gills between full ones. stem: 5-9-? cm thickness: 1-1.4-? cm. slightly lighter than cap colour. uniform thickness. highly twisted and surface split in one example (to be able to root with cluster) bottom few cm is harder, black and rooting. interior flesh white, not hollow. no ring no volva.

Habitat:

in cespitose clusters under oak. at least three clusters.

Notes:

I had prepared a cap for spore prints but it was cleaned away before I could check print.