Complex sentence: This uncommon species has a circumboreal distribution, and has been collected in eastern North America, northern Africa, Europe, and Asia; declining populations in Europe have led to its appearance in over half of the European fungal Red Lists of threatened species.
Split into simpler sentences: This uncommon species has been collected in eastern North America, northern Africa, Europe, and Asia. Declining populations in Europe have led to its appearance in over half of the European fungal Red Lists of threatened species.