The article highlights the fines that mushroom pickers in the Moscow Region, Russia, can face for collecting or destroying species listed in the Red Book of Russia, a publication aimed at protecting endangered flora and fauna. While over 60 mushroom species are included in the Red Book, only two grow in the Moscow Region. The fines, ranging from 2.5 to 5 thousand rubles for individuals, are enforced to preserve these endangered species, which are threatened by deforestation and recreational activities. However, the article also points out potential misidentification of red-listed mushrooms by pickers and raises concerns about the inclusion of common mushroom species in regional Red Books, which could lead to fines for innocent pickers. It also discusses the potential criminal liability for collecting the matsutake rowan, a mushroom, and the negative impact on the mycelium caused by digging up these fungi.