| Status of species |
A rare species. Registered in the Red Data Books of Sweden and Lithuania
and in the Lists of endangered lichens species in Finland, Austria and
Poland. |
| Distribution |
The central and eastern parts of Latvia. |
| Habitat |
An epiphytic lichen growing mainly on branches of conifer trees, occasionally
on deciduous trees in mixed forests. |
| Occurance |
Singly specimens occur. |
| Reproduction |
By soredia. |
| Changes in number and distribution |
Found for the first time in Latvia in Vecpiebalga (A. Bruttan, 1869).
It is negatively affected by changes in biotope and environmental pollution. |
| Existing protection |
Localities are known in the teritory of Gauja National Park. Red Data
Book of Latvia, 1992. |
| Suggestions for study |
Lichen biology and dynamics of population development should be studied.
Its distribution should be defined. |