Life … Fungi Including Lichens Sac Fungi Common Lichens Script Lichens, Whitewash Lichens, and Allies Thrombiaceae Thrombium Lichens genus Thrombium Lichens Thrombium Field notes Children Epigeal Clot Lichen native Thrombium Lichen Mongolia Thrombium Lichen Most observed native thrombium lichens All Native to the US, by observations. Epigeal Clot Lichen Thrombium epigaeum 38 observations Close