👉 Glyptolenus is a genus of lichenoid fungi in the family Lichenaceae, which are known for their ability to produce large amounts of lignin. They are characterized by their thick, dense, and hard, often white or yellowish-brown, exudate that forms a protective layer on the surface of the fungus. This process is thought to be an adaptation for the fungi in environments where lignin production can be challenging, such as in cold climates or in areas
