Brittle flesh?
Y — Does it bleed?
.. Y — Lactarius sp.
.. N — Russula sp. most likely (get a spore print)
…. no spore print — likely Macowanites
…. white — likely Russula
…. something else — dunno
N — Waxy thick gills?
.. Y — Hygrophorus and Hygrocybe more likely (spore print pale)
.. N — Clitocybe fairly likely (spore print pale)
.. If spore print dark, dunno