| Status of species |
A very rare species. Registered in the Red Data Book of Estonia and
in the Lists of endangered lichens species in Denmark, Germany, Austria
and Poland. |
| Distribution |
Western part of Latvia. |
| Habitat |
An epiphytic crustose lichen growing on deciduous and conifer trees. |
| Occurance |
Singly specimens occur on tree trunks. |
| Reproduction |
By spores. |
| Changes in number and distribution |
Found for the first time in Latvia in Slītere reserve in 1971 near
Dāvids cave on oak and spruce (A. Piterāns). It is negatively affected
by changes in biotope and pollution. |
| Existing protection |
Localities are known in Slītere reserve. Red Data Book of Latvia, 1992. |
| Suggestions for study |
Lichen biology and dynamics of population development should be studied.
Its distribution should be defined. |