しいのとうかきのこだったら
椎の灯火茸だったら
shiino tōkakinokodattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of しいのともしびたけ

1. If it were a *shi no tomoshibitake*…; If it had been a *shi no tomoshibitake*…

Tara Conditional
Usually Written in Kana