Аннотация:Recent studies considerably expanded knowledge of the moss
flora of Russia, with especially great additions to the flora of its
Asian part. A number of families, such as Pseudoditrichaceae and
Andreaeobryaceae, previously considered as endemic of North
America were found in Siberia. More southern Erpodiaceae and
Orthodontiaceae were discovered in Asian Russia, as well as Oedipodiaceae,
a family with hyperoceanic distribution. In the last
25 years a number of moss species known in Russia raised from
1050 to 1280, and new findings continue. This addition in fact
is not 230, but over 300 species, as more that 70 species were
excluded as erroneous or non-confirmed records in the course of
revisions. In average 10 newly recorded species per year and two
species new for science per year were being discovered in Russia
during last twenty-five years. In 2017 the first out of six volumes
of the Moss Flora of Russia was printed, while other volumes are
planned to be accomplished in the next five to ten years. The flora
comprises taxonomic revisions based on molecular and morphological
data. Among others, it turned out that some species which
were considered as circum-Holarctic, e.g., Rhynchostegium riparioides,
Schistidium apocarpus, Hedwigia ciliata, Polytrichum
formosum, Brachythecium glareosum are absent in Asian Russia,
and all their previous records in Russia east of Urals belong to
other species. At the same time, recently described from North
America Coscinodon yukonensis, Pylaisia steerei and Sphagnum
alaskanum appeared to be widespread in Asia; Ditrichopsis clausa
described from Yunnan was found in Transbaicalia, and Struckia
enervis described from Szechuan appeared to be widespread in Siberia,
reaching eastern Yakutia, the coldest area in the Northern
Hemisphere. Further taxonomic revisions, with the special attention
to cross-comparison of East Asian, Siberian and North American
specimens may reveal more similarity between these areas
than it was previously thought.