Inocybe magnicarpa Takah. Kobay.

オオコブミノトマヤタケ

  This is very big Inocybe and the pileus diameter reaches sometimes 11cm and stem length 18cm.  

   I found this Inocybe in beach forest of Mt. Fuji at September.                          Identified by Dr. Takahito Kobayashi
   Cheilocystidia :  Pleurocystidia are also same shape and size.
  Caulocystida Spore : 7-10/5-7.2 micro meter