Fedosov V.E.1, Fedorova A.V.2, Troitsky A.V.2, Bobrova V.K.2, Ignatov M.S.1,3 2016. On the systematic position of Hymenoloma (Bryophyta) // Arctoa. Vol. 25(1): 119–130 [in English].

1 Lomonosov Moscow State University, Faculty of Biology, Geobotany Dept., Leninskie Gory Str. 1-12, Moscow 119991 Russia; e-mails: fedosov_v@mail.ru , misha_ignatov@list.ru

2 Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical Biology, Leninskie Gory 1-40, Moscow 119991 Russia; e-mail: alina_77777@mail.ru , bobr@genebee.msu.su

3 Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya Str., 4, Moscow 127276 Russia.

KEYWORDS: Dicranidae, mosses, nad5, rps4, trnL-F, Scouleriales, molecular phylogenetics.

ABSTRACT. Molecular phylogenetic analyses based on nad5, rps4 and trnL-F sequences suggest the position of the genus Hymenoloma in the order Scouleriales. This order includes two monogeneric families: Scouleriaceae, with aquatic plants, and Drummondiaceae that includes mostly epiphytic mosses. Mainly epilithic Hymenoloma strongly differs from both of them, as well as they differ from each other, thus a new family Hymenolomataceae is suggested for this genus. Morphologically, Hymenoloma has no unique characters, although its outstanding plasticity provides some explanation of its relationships with Scouleria and Drummondia.

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doi 10.15298/arctoa.25.10