Mushrooms Around The Yard

Collybia dryophila aka Gymnopus dryophilus in Shrewsbury?  The spore shape and size says it is not!  Growing on a pile of oak leaves.  About 3" high.  The cap of the larger is 2".  Stem hollow, a bit tough.  I would not call it brittle.  Lincoff states that Oak-loving Collybia is the one that hosts Collybia Jelly aka Christiansenia mycetophila. 



Bottom of stem.

The spore print was white.  Spore size about 10 microns.  They look spiked or warted.