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Crustose, placodioid and leprose lichens: N-O

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Clicking on the lichen images opens a species page with photographs and details - images shown are not to scale.

Naetrocymbe punctiformis (Arthopyrenia punctiformis) Naetrocymbe saxicola (Arthopyrenia saxicola) Naetrocymbe saxicola (Arthopyrenia saxicola) Naevia punctiformis (Arthonia punctiformis) Naevia punctiformis (Arthonia punctiformis) Neopetractis nodispora (Petractis nodispora) Neopetractis nodispora (Petractis nodispora)

O
Ochrolechia androgyna Ochrolechia androgyna Ochrolechia arborea Ochrolechia arborea Ochrolechia arborea Ochrolechia arborea Ochrolechia parella Ochrolechia parella Ochrolechia subviridis Opegrapha areniseda Opegrapha areniseda Arthonia atra (Opegrapha atra) Arthonia calcarea (Opegrapha calcarea) Opegrapha dolomitica Opegrapha dolomitica Opegrapha dolomitica Gyrographa gyrocarpa (Opegrapha gyrocarpa) Alyxoria culmigena (Opegrapha herbarum) Alyxoria culmigena (Opegrapha herbarum) Opegrapha hochstetteri Opegrapha hochstetteri Alyxoria mougeotii (Opegrapha mougeotii) Opegrapha niveoatra Opegrapha niveoatra Alyxoria ochrocheila (Opegrapha ochrocheila) Phacothecium varium (Opegrapha physciaria) Zwackhia prosodea (Opegrapha prosodea) Pseudoschismatomma rufescens (Opegrapha rufescens) Opegrapha rupestris Gyrographa saxigena (Opegrapha saxigena) Zwackhia sorediifera (Opegrapha sorediifera) Alyxoria varia (Opegrapha varia) Alyxoria viridipruinosa (Opegrapha viridipruinosa) Alyxoria viridipruinosa (Opegrapha viridipruinosa) Opegrapha vermicellifera Opegrapha vermicellifera Opegrapha vulgata Opegrapha vulgata Alyxoria xerica (Opegrapha xerica) Orcularia insperata (Rinodina biloculata)

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