Recent data on occurrence the sporophytes in populations of dioecious moss, Nyholmiella obtusifolia in North-Eastern Poland

Moss Nyholmiella obtusifolia is relatively common in Poland, but mostly sterile specimens are found in herbarium collections. Sporogenes were created very rare. During bryological explorations conducted in NE Poland in 2009 - 2011, sporophytes were found in four populations of N. obtusifolia, which account for approximately 7% of the surveyed populations.