Ignatov M.S.1, Kuznetzova O.I.1, Czernyadjeva I.V.2 2014. On the systematic position of Leptodictyum mizushimae (Bryophyta) // Arctoa. Vol.23: 185–193 [in English].

1 Tsitsin Main Botanical Garden of Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276 Russia; e-mails: misha_ignatov@list.ru ; oikuznets@gmail.com

2 V.L. Komarov Botanical Institute Rus. Acad. Sci., Prof. Popov Str., 2, St. Petersburg, 197376 Russia; irinamosses@gmail.com

KEYWORDS: mosses, taxonomy, molecular phylogenetics, Limnohypnum gen nov., Climaciaceae, East Asia, morphology

ABSTRACT. Leptodictyum mizushimae (Sakurai) Kanda (= Hygrohypnum mizushimae Sakurai), a rare East Asiatic species, known from Japan, Kuril Islands and Kamchatka, is studied by three molecular markers, including nuclear ITS, chloroplastic rps4 and mitochondrial nad5, and all of them indicate its affinity with Climaciaceae, despite lacking morphological similarity: plants are not dendroid and stem lacks any paraphyllia-like structires. A new genus, Limnohypnum is described to accomodate this species. Morphological description and illustrations are provided.

doi: 10.15298/arctoa.23.15                                                                             

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