| Arthonia calcarea |
| Nederlands | : | Muurschriftmos |
| Deutsch | : | Kalk-Fleckflechte |
| Svenska | : | kalkklotterlav |
 |
 |
 |
 |
| Texel, the Netherlands; 4 July 2013. | |
 |
 |
 |
|
| Muiderberg, the Netherlands; 2 June 2013. | Oosthuizen, the Netherlands; 28 February 2015. | ||
| Arthonia calcarea |
| Nederlands | : | Muurschriftmos |
| Deutsch | : | Kalk-Fleckflechte |
| Svenska | : | kalkklotterlav |
|
|
|
|
| Texel, the Netherlands; 4 July 2013. | |
|
|
|
|
| Muiderberg, the Netherlands; 2 June 2013. | Oosthuizen, the Netherlands; 28 February 2015. | ||