いのししきのこでしょう
猪苓舞茸でしょう
inoshishikinokodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ちょれいまいたけ

1. Probably phellinus igniarius and maitake.

Polite
Presumptive
Conjecture
Usually Written in Kana