Looks like mold/fungus that is growing out of that rotten green colored flake.
Maybe a dead bug thats been taking over by mold.
Or maybe some spider mite webbing.
It doesn't look like cystolith hairs to me
Cystolithic hairs are very small. While on your picture the 'hairs' are very large and uneven in length. One is even extremely large running right above it. (I don't think thats an animal or a human hair. It has the same colour and diameter of the other white 'hairs'. Animal and human hair will show much thicker under the microscope and not with the exact same colour.)
Left: Trichome Right: Cystolithic hair