Tubanova, D.Ya., T.I. Koroteeva & E.A. Ignatova. 2019. On the sporophyte of Dicranum ignatovii (Dicranaceae, Bryophyta)

Arctoa (2019) 28: 167–170

doi: 10.15298/arctoa.28.14

Dicranum ignatovii Tubanova & Fedosov was recently described from the southern Russian Far East based on sterile collections. Sporophytes were subsequently found in two herbarium specimens from Kunashir Island (South Kuril Islands), and also dwarf male plants were revealed in one of these specimens, so phyllodioicous sexual condition of this species is confirmed. Here we provide an amended description of the species. A derived peristome structure of D. ignatovii is consistent with its epiphytic growth; it is illustrated with SEM images.