Mycena lux-coeli is a bioluminescent species of fungus in the family Mycenaceae. It was first discovered in 1954 on Hachijō-jima where it is widely found, and decades later was found on multiple islands in Japan.
Hachijō-jima island is also home to the bioluminescent mushroom species, Mycena chlorophos. The local name for these mushrooms is hato-no-hi, literally "pigeon fire".
References
Oba, Y., Haneda, Y., & Teranishi, K. (2023). The luminous fungi of Japan. Journal of Fungi, 9(615). https://pmc.ncbi.nlm.nih.gov/articles/PMC10302135/