Arthonia polygramma - Astragalus bryogenes
- Arthonia polygramma
- Arthonia polymorpha
- Arthonia pruinata
- Arthonia pruinosella
- Arthonia pruinosula
- Arthonia punctiformis
- Arthonia pyrrhula
- Arthonia pyrrhuliza
- Arthonia quintaria
- Arthonia radiata
- Arthonia ravenelii
- Arthonia reniformis
- Arthonia rhoidis
- Arthonia rubella
- Arthonia rupicola
- Arthonia sexlocularis
- Arthonia siderea
- Arthonia spadicea
- Arthonia stellaris
- Arthonia stictella
- Arthonia subastroidella
- Arthonia subdiffusa
- Arthonia subdispuncta
- Arthonia subfusicola
- Arthonia subminutissima
- Arthonia subminutula
- Arthonia subrubella
- Arthonia taedescens
- Arthonia terrigena
- Arthonia tetramera
- Arthonia torulosa
- Arthonia tuckermaniana
- Arthonia varia
- Arthonia vernans
- Arthonia vinosa
- Arthonia viridicans
- Arthonia willeyi
- Arthonia xylographica
- Arthopyrenia
- Arthopyrenia analepta
