| Status of species |
A rare species. Registered in the Red Data Book of Estonia and in the
Lists of endangered lichens species in Finland, Germany, Austria and Poland. |
| Distribution |
Rare all over the territory of Latvia. |
| Habitat |
An epiphytic lichen growing on deciduous trees in parks and mixed forests. |
| Occurance |
Singly specimens occur on tree trunks. |
| Reproduction |
By spores. |
| Changes in number and distribution |
Found for the first time in Latvia in Tērvete (A. Piterāns, 1961).
It is negatively affected by changes in biotope and pollution. |
| Existing protection |
Red Data Book of Latvia, 1992. |
| Suggestions for study |
Lichen biology and dynamics of population development should be studied. |