Erioderma pedicellatum [SEP] IUCN conservation status
on the Status of Endangered Wildlife in Canada (COSEWIC) and critically endangered by the International Union for Conservation of Nature (IUCN). No other lichen is listed by the IUCN but one fungus is considered critically endangered by the IUCN ("Pleurotus nebrodensis").
Two of the main populations of "Erioderma pedicellatum" in Newfoundland are currently within protected areas: Jipujijkuei Kuespem Provincial Park and the Lockyer’s Waters interim protected area. The Lockyer’s Waters interim protected area was established specifically to protect this lichen. The Bay
before it reaches a visible size. The liverwort may also benefit from the nitrogen that is being fixed by the cyanolichen growing within it. This complex relationship means that the ecological balance between "Erioderma pedicellatum" and its cyanobacterial symbiont ("Scytonema"), its host tree, and (potentially) its liverwort nursemaid ("Frullania asagrayana"), is very delicate and easily impacted by logging, air pollution, and other factors.
Conservation status.
"Erioderma pedicellatum" is currently listed as endangered by the Committee