Ignatov M.S.1,2, Bezgodov A.G.3, Kuznetsova O.I.2, Ignatova E.A.2018. On the genus Leskea (Leskeaceae, Bryophyta) in Russia // Arctoa. Vol. 27: 49–53 [in English].

1 – Lomonosov Moscow State University, Biological Faculty, Geobotany Dept., Leninskie Gory Str. 1-12, Moscow 119234 Russia; e-mails: misha_ignatov@list.ru & arctoa@list.ru

2 – Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya Str., 4, Moscow 127276 Russia; e-mail: oikuznets@gmail.com

3 – Joint Stock Company Kama Research Institute on Complex Deep and Superdeep Borehole Investigations, Krasnoflotskaya str., 15, Perm, 614016 Russia; e-mail: bezgodovs@list.ru

KEYWORDS: Leskea, Russian Far East, Yakutia, ecomorphs

ABSTRACT. The genus Leskea in Russia is represented by one widespread species, L. polycarpa Hedw. Records of L. gracilescens appeared to be erroneous. Analysis of nuclear ITS sequence data demonstrated that North American samples of L. gracilescens and L. obscura clearly differ from European and Asian populations in several characteristic substitutions. Anomalous morphology of plants from Yakutia and Amur Province is described and illustrated. Their distribution likely corresponds to a high and late floodings of big rivers, crossing permafrost areas.

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doi 10.15298/arctoa.27.05