| australia | victoria | mesophyllum engelhartii | species | 1 | 0 |
| australia | victoria | mesophyllum macroblastum | species | 1 | 0 |
| brazil | | mesophyllum erubescens | species | 1 | 0 |
| brazil | santa catarina | mesophyllum erubescens | species | 4 | 0 |
| canada | british columbia | mesophyllum conchatum | species | 4 | 0 |
| canada | british columbia | mesophyllum vancouveriense | species | 7 | 0 |
| france | bretagne region | mesophyllum lichenoides | species | 2 | 0 |
| france | provence-alpes-cote d'azur region | mesophyllum sp. jhk-2014 | species | 1 | 0 |
| italy | calabria region | mesophyllum expansum | species | 1 | 0 |
| italy | calabria region | mesophyllum macroblastum | species | 1 | 0 |
| italy | calabria region | mesophyllum sphaericum | species | 1 | 0 |
| italy | sicily autonomous region | mesophyllum expansum | species | 2 | 0 |
| mexico | | mesophyllum erubescens | species | 3 | 0 |
| mexico | baja california sur | mesophyllum engelhartii | species | 1 | 0 |
| new zealand | auckland | mesophyllum erubescens | species | 4 | 0 |
| new zealand | northland | mesophyllum printzianum | species | 3 | 0 |
| new zealand | taranaki | mesophyllum erubescens | species | 2 | 0 |
| portugal | faro district | mesophyllum lichenoides | species | 3 | 0 |
| portugal | faro district | mesophyllum sp. 1cpvp | species | 4 | 0 |
| portugal | viana do castelo district | mesophyllum alternans | species | 1 | 0 |
| spain | | mesophyllum sp. 288-464 | species | 1 | 0 |
| spain | andalusia | mesophyllum expansum | species | 3 | 0 |
| spain | andalusia | mesophyllum macroblastum | species | 3 | 0 |
| spain | andalusia | mesophyllum sphaericum | species | 1 | 0 |
| spain | asturias | mesophyllum expansum | species | 2 | 0 |
| spain | asturias | mesophyllum lichenoides | species | 2 | 0 |
| spain | basque country | mesophyllum alternans | species | 2 | 0 |
| spain | basque country | mesophyllum expansum | species | 7 | 0 |
| spain | basque country | mesophyllum lichenoides | species | 1 | 0 |
| spain | canary islands | mesophyllum erubescens | species | 2 | 0 |
| spain | canary islands | mesophyllum expansum | species | 1 | 0 |
| spain | canary islands | mesophyllum sp. 2cpvp | species | 4 | 0 |
| spain | cantabria | mesophyllum expansum | species | 1 | 0 |
| spain | cantabria | mesophyllum lichenoides | species | 1 | 0 |
| spain | catalonia | mesophyllum expansum | species | 1 | 0 |
| spain | galicia | mesophyllum alternans | species | 2 | 0 |
| spain | galicia | mesophyllum expansum | species | 9 | 0 |
| spain | galicia | mesophyllum lichenoides | species | 7 | 0 |
| spain | galicia | mesophyllum sphaericum | species | 8 | 0 |
| united kingdom | england | mesophyllum lichenoides | species | 3 | 0 |
| united states | alaska | mesophyllum vancouveriense | species | 2 | 0 |
| united states | hawaii | mesophyllum erubescens | species | 6 | 0 |