Tubanova D.Ya.1, Koroteeva T.I.2, Ignatova E.A.3 2019. On the sporophyte of Dicranum ignatovii (Dicranaceae, Bryophyta) // Arctoa. Vol. 28: 167–170 [in English].

1 – Institute of General and Experimental Biology SB RAS, Sakhjanovoy str., 6, Ulan-Ude, 670047 Russia; e-mail: tdolgor@mail.ru.

2 – Institute of Marine Geology and Geophysics FEB RAS, Nauki Str., 1B, Yuzhno-Sakhalinsk, 693022 Russia; e-mail: tatjana_05@mail.ru

3 – Lomonosov Moscow State University, Faculty of Biology, Plant Ecology and Geography Dept., Leninskie Gory Str. 1-12, Moscow 119234 Russia; e-mail: arctoa@list.ru

Keywords: Dicranum, sporophyte, sexual condition, peristome structure, Kunashir Island, Far East

ABSTRACT. 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.

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doi 10.15298/arctoa.28.14