Psyllocybe is a genus of fungi known for its small, often colorful mushrooms. These fungi are primarily found in temperate and tropical regions, growing in various habitats, including grasslands and forests. They play a crucial role in the ecosystem by decomposing organic matter and forming symbiotic relationships with plants. Some species within the Psyllocybe genus contain psychoactive compounds, particularly psilocybin, which can induce altered states of consciousness. These mushrooms have been used in traditional rituals and modern therapeutic settings. However, their legal status varies widely across different countries and regions.