| Status of species |
A very rare species. Registered in the Red Data Book of Sweden and
in the Lists of endangered lichens species in Finland, Denmark and Germany. |
| Distribution |
The north - west part of Latvia. |
| Habitat |
Develops on deciduous tree trunks. |
| Occurance |
Singly specimens occur on deciduous trees. |
| Reproduction |
By soredia. |
| Changes in number and distribution |
The first and the only time in Latvia found in Slītere reserve in 1956
(H. Trass). |
| Existing protection |
A locality is known in Slītere reserve. Red Data Book of Latvia, 1992. |
| Suggestions for study |
Lichen biology should be studied; its distribution should be determined. |