Life … Fungi Including Lichens Sac Fungi Dothideomycetes Pleosporales Arthopyreniaceae Shell Lichens genus Shell Lichens Arthopyrenia Field notes Children Arthopyrenia analepta Shell Lichen Arthopyrenia degelii Old Birch Spots native Shell Lichen Arthopyrenia subcerasi Arthopyrenia esenbeckiana Arthopyrenia rappii Arthopyrenia oblongens Texas Shell Lichen Arthopyrenia taxodii Shell Lichen Arthopyrenia exasperata Shell Lichen Most observed native shell lichens All Native to the US, by observations. Old Birch Spots Arthopyrenia betulicola 3 observations Close
