| Status of species |
A rare species. Registered in the Red Data Books of Sweden and Estonia
and in the Lists of endangered lichens species in Finland, Germany, Austria
and Poland. |
| Distribution |
Eastern and western parts of Latvia. |
| Habitat |
An epiphytic poliose lichen growing on deciduous and conifer trees
in territories of low pollution. |
| Occurance |
Singly specimens occur on tree trunks. |
| Reproduction |
By soredia. |
| Changes in number and distribution |
Found for the first time in Latvia in Vējava, Jaungulbene, Dundaga
(A. Bruttan, 1870). It is negatively affected by changes in biotope and
environmental pollution. |
| Existing protection |
Localities are known in the botanic sanctuary - Lukna hornbeam stand.
Red Data Book of Latvia, 1992. |
| Suggestions for study |
Lichen biology and dynamics of population development should be studied.
Its distribution should be defined. |