A boreal lichen that grows mainly in forests with a relic presence of pine. Its large populations have been reported from boggy pine forests in the valley of the Teplá Vltava River in the Šumava Mts. The species grows on standing wood of snags and acidic bark of often younger trees in relatively sunny places. In the Czech Republic, it occurs in at middle elevations and in foothills. Besides pine, M. elachista has been recorded also on oak wood and larch bark. There are recent reports only from the Šumava Mts and the Třeboň region (Czarnota 2007, Peksa et al. 2007). The record from the Kokořín region (Peksa et al. 2007) is incorrect.
Literature: Czarnota P. (2007): The lichen genus Micarea (Lecanorales) Ascomycota) in Poland. – Polish Botanical Studies 23: 1–199. Peksa O. et al. (2007): Lišejníky zaznamenané během 19. podzimních bryologicko-lichenologických dnů na Kokořínsku. – Bryonora 39: 12–20.taxonomic classification:
All records: 19, confirmed 17. One click on a selected square displays particular record(s), including their source(s).