Asterella lindenbergiana (Corda ex Nees) Arnell

Asterella lindenbergiana (Corda ex Nees) Arnell View in CoL (gyn., spor.)

– 2, 6, 8, 11, 12 (8: 633–973 m), sp.: tundra belt, on fine earth on sides of sinkholes and in shaded niches on carbonate cliffs and rocks [121150], in pure mats or mixed with Mesoptychia gillmanii , Clevea hyalina , Sauteria alpina , Tritomaria scitula , Blepharostoma trichophyllum subsp. brevirete , Distichium capillaceum . Occurs as well on soil and fine earth in mossy beds and on sides of temporary streams where it grows in pure mats or mixed with Preissia quadrata , Mnium spinosum, Philonotis fontana, Pohlia wahlenbergii . It is an almost circumpolar arctomontane calcicolous species. It has previously been reported for Russia from Caucasus , the Murmansk Province, the mountains of Yakutia and the Far East ( Borovichev et al., 2015). Finding the species in Urals in areas with carbonate rocks fills in the huge gap in its distribution.