In late March and early April, Japan can experience cold weather. Even this year, it rained and snowed a few days ago. In the Aokigahara Woodland area in Narusawa village and Kawaguchiko town in Yamanashi Prefecture, there was snow and the air was crispy.
Fresh green mosses on the surfaces of the tree roots and the fungus Perenniporia fraxinea on the tree bark in the Aokigahara Woodland, Kawaguchiko, Yamanashi, 4/02/2025
The fungus Perenniporia fraxinea was used be called Vanderbylia fraxinea (https://en.wikipedia.org/wiki/Vanderbylia_fraxinea).
FYI: Moss https://en.wikipedia.org/wiki/Moss