Preissia quadrata (Scop.) Nees (and., gyn., spor.)

– 2, 6, 8, 13 (6: 630–926 m), sp.: on fine earth and humus between boulders on carbonate rock outcrops in tundra, on soil on sides of karst hollows, on spots of bare soil in herbaceous tundra, on banks of mossy brooks, on fine earth between rocks in alder thickets [121121]. Always mixed with other bryophytes, particularly with Blepharostoma trichophyllum subsp. brevirete, Mesoptychia heterocolpos, M. gillmanii, M. collaris, Lophocolea minor, Scapania cuspiduligera, Asterella lindenbergiana .