Distribution of the world's Psora species
| Species | Africa | Antarctica | Asia | Australia | Europe | North America | South America
|
| Psora brunneocarpa | | | | | | × |
|
| Psora californica | | | | | | × |
|
| Psora cerebriformis | | | | | | × |
|
| Psora crenata | × | | | × | | × |
|
| Psora decipiens | × | | × | × | × | × | ×
|
| Psora elenkinii | | | × | | × | × |
|
| Psora globifera | | | × | | × | × |
|
| Psora gresinonis | | | × | | × | |
|
| Psora himalayana | | | × | | | × |
|
| Psora hyporubescens | | | | | | × |
|
| Psora hypotheja | | | | | | | ×
|
| Psora icterica | | | | | | × | ×
|
| Psora indigirkae | | | × | | | (?) |
|
| Psora luridella | | | × | | | × |
|
| Psora montana | | | | | | × |
|
| Psora nipponica | | | × | | | × |
|
| Psora nitida | | | | | | × |
|
| Psora pacifica | | | | | | × |
|
| Psora peninsularis | | | | | | × |
|
| Psora pruinosa | | | | | | × |
|
| Psora pseudorussellii | | | | | × | × |
|
| Psora rubiformella | | | × | | | |
|
| Psora rubiformis | | | × | | × | × |
|
| Psora russellii | | | | | | × |
|
| Psora saviczii | | | × | | × | |
|
| Psora subrubiformis | | | × | | | |
|
| Psora tenuifolia | | | × | | | × |
|
| Psora testacea | | | × | | × | |
|
| Psora tuckermanii | | | | | | × |
|
| Psora vallesiaca | | | × | | × | × | (×)
|
(?), (×): unpublished