Ignatov M.S.1,2, Fedosov V.E.1, Fedorova A.V.3, Ignatova E.A.1 2016. On the systematic position of Discelium (Bryophyta) // Arctoa. Vol. 25: 278–284 [in English].
1 Lomonosov Moscow State University, Faculty of Biology, Geobotany Dept., Leninskie Gory Str. 1-12, Moscow 119234 Russia; emails: firstname.lastname@example.org & email@example.com
2 Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276 Russia; e-mail: firstname.lastname@example.org
3 Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical Biology, Moscow 119991 Russia; e-mail: email@example.com
KEYWORDS: mosses, taxonomy, molecular phylogenetics, new order
ABSTRACT. Results of molecular phylogenetic analysis support the position of the genus Discelium in the group of diplolepideous opposite mosses, Funariidae; however, its affinity is stronger with Encalyptales than with Funariales, where it is currently placed. A number of neglected morphological characters also indicate that Discelium is related to Funariales no closer than to Encalyptales, and thus new order Disceliales is proposed. Within the Encalyptaceae a case of strong sporophyte reduction is revealed. Bryobartramia appeared to be nested in Encalypta sect. Rhabdotheca, thus this genus is synonymized with Encalypta.