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This publication is to announce the database of the Moss Flora of Russia at http://arctoa.ru/Flora/ basa.php. It also explains the strategy and approaches so as to be maximally useful for the publication of the Moss Flora of Russia, a six-volume print edition that was started in 2017. The database currently contains over 128 000 records; it is shown to be reasonably complete for illustrating the species distribution within the expanded territory of the country. A number of scripts allow instant comparison of various territories, highlighting hotspots and underexplored areas. Problems of data control and presentation are discussed. Резюме В данной статье анонсируется база данных по флоре мхов России, размещенная по адресу http://arctoa.ru/Flora/basa.php. В ней также представлены стратегия и подходы к максимально полному ее использованию для подготовки публикации шеститомного печатного издания "Флора мхов России", которое стартовало в 2017 г. В настоящее время в базе представлено более 128 000 образцов; показано, что уже сейчас распространение видов на территории страны отражается адекватно. Наличие нескольких скриптов позволяет быстро проводить сравнение флор разных территорий, которое выявляет наиболее флористически богатые регионы и "белые пятна" в исследовании флор. Обсуждаются проблемы контроля за внесением информации и ее представ-лением.

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New liverwort records from Мurmansk Province. 3.-Новые находки печеночников в Мурманской области. 3. E.A. Borovichev-Е.А. Боровичев New for the province-Новые для области Asterella lindbergiana (Corda ex Nees) Arnell-Lovozero Area, Voron'i Tundry Mts., near the bottom of the Leschaja Mt., stream flowing into the Lagernoe Lake (68°29'49''N-35°36' 07''E), 298 m alt., SW-faced slope of calcareous rock, under the overhanging stone, on fine soil, in compact patches, Borovichev #БЕ16-11-11; 16-14-11 [Боровичев] {KPABG}.

Glaciers are rather unusual habitat for mosses, but sometimes they can be suitable for some species due to presence of sufficient moisture and cryoconite substrate in the ablation zone. To date, moss populations were found only on a few glaciers in Alaska, Iceland and Svalbard. An origin and development of moss cushions on ice (so called "glacier mice") are still unclear. In this study, some aspects of the moss population development were explored on ice of the Svalbard glaciers – Bertilbreen (Billefjorden) and Austre Grnfjordbreen (Grnfjorden) in 2012 and 2013. On Bertilbreen, populations of Hygrohypnella polaris (Lindb.) Ignatov & Ignatova and Schistidium abrupticostatum (Bryhn) Ignatova & H.H. Blom were found for the first time. Due to putative morphological features, identification of S. abrupticostatum was confirmed by com-paring ITS1-2 nrDNA sequence data to BLAST searches (megablast). The results indicated a genetic heterogeneity of the population. Although visually moss-free, examination of cryoconite sediments revealed development of new individuals of S. abrupticostatum from filamentous structures consisting of caulonema and rhizoids. The developmental stages of young plants were revealed. Therefore, besides fragmen-tation of existing cushions, cryoconite sediments provided a source of new moss cush-ions in glacier populations. Additionally a few plants of Pohlia cf. wahlenbergii (F. Weber & D. Mohr) Andrews and a gametophyte fragment of Philonotis sp. were found in aggregation of cryoconite. Presence of Paludella squarrosa (Hedw.) Brid. reported for Bertilbreen has not been confirmed. On Austre Grnfjordbreen Bryum cryophilum Mrtensson, Sanionia uncinata (Hedw.) Loeske were found invading into some Hygrohypnella polaris cushions. Each moss polster on ice represents a separate mini-ecosystem that includes successive colonization events.