Ah, those are the pressed lees left behind after filtering the liquid—prized cakes poetically celebrated since antiquity as kobore-ume, or scattered plum blossoms, for their resemblance to fallen petals. (N1 lesson 227)
This is genuine wild black maitake! It's the phantom mushroom said to be named because whoever found it danced for joy. The mycelium spread deep underground has broken years of silence and burst into flower above ground all at once. (N1 lesson 195)