Core Insights - The article highlights the ecological significance of lichens, particularly the species growing in Gaoting Mountain, which serve as indicators of air quality and environmental health [1][2] - The collaboration between fungi and algae in lichens demonstrates a unique symbiotic relationship that allows them to thrive in extreme environments [1] - Gaoting Mountain is recognized as a vital urban green space in Hangzhou, with a forest coverage rate exceeding 85%, contributing to biodiversity and environmental monitoring [2] Group 1 - Lichens, such as the one described, are a symbiotic complex of fungi and algae, providing resilience in harsh environments [1] - The presence of lichens is sensitive to air quality, making them effective bioindicators for pollution levels [1] - Gaoting Mountain is referred to as a "natural oxygen bar," highlighting its importance for urban ecology and air quality [1] Group 2 - Since 2022, a team led by Zhou Yong has been conducting biodiversity surveys in Gaoting Mountain, discovering various fungal species [2] - The initiation of a lichen-specific survey revealed the presence of valuable species, including the lichen mentioned in the article [2] - The establishment of the Gaoting Mountain Nature Center aims to educate the public about the local ecosystem and promote environmental awareness [2]