Lynne has taught and researched into the ecology of wood decomposition for 40 years. She is currently investigating heart-rot in deciduous trees, the ash dieback fungus, the ways in which fungi fight each other and form communities, and how they search the forest floor for food resources and respond to their finds. She is a prolific author having co-authored Fungal Decomposition of Wood, edited six books, written well over 200 scientific papers, and is chief editor of the journal Fungal Ecology. She was (2009–2010) president of the British Mycological Society. Lynne is an ardent communicator of the mysteries and importance of the amazing hidden Kingdom of Fungi to the general public including TV, radio, popular talks, articles and exhibitions.