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44 species of lichen-forming, lichenicolous and non-lichenized fungi are reported from the Novgorod Region, 34 of them are new to the region. Leptogium biatorinum is new to European Russia. Nephromopsis laureri is red-listed in Russian Federation and should be included in the Red Data Book of the Novgorod Region. Most noteworthy records are briefly discussed. Two species -Collema callopismum and Hertelidea botryosa -are excluded from the lichen list of the Novgorod Region.

Eighteen species of lichens and five lichenicolous fungi are reported here for the Leningrad Region or Saint Petersburg. Of them, the lichens Absconditella delutula, Calogaya pusilla, Flavoplaca flavocitrina and Rinodina colobina are new for the NorthWestern European Russia, and the lichenicolous species Abrothallus parmeliarum, Diploschistes muscorum, Lichenochora cf. polycoccoides and Nieslia peltigericola-for the Leningrad Region; Cladonia novochlorophaea and Lichenodiplis lecanorae are reported for the first time for Saint Petersburg. The most noteworthy records are briefly discussed.

Fourteen species of lichens, fifteen lichenicolous fungi and one saprobic fungus are reported for the first time for St. Petersburg, Western or Eastern Leningrad Region. The lichen Lecidella meiococca and the lichenicolous fungus Tremella phaeophysciae are reported as new to Russia, the lichen Lecania sambucina and the lichenicolous fungus Endococcus tricolorans are new for the European Russia, the lichens Buellia arborea, Chaenotheca cinerea, Bellemerea sanguinea, resinicolous calicioid fungus Chaenothecopsis mediarossica and lichenicolous fungi Arthonia molendoi, Lichenochora obscuroides, Pronectria leptaleae, Sphaerellothecium cladoniae are new for the North-Western European Russia. The most interesting records are briefly discussed.

The list of species comprises 25 species reported for the first time for Abkhazian Experimental Research Forest Station. Eleven species are new to Abkhazia — Byssoloma leucoblepharum (Nyl.) Vain., Chrysothrix candelaris (L.) J. R. Laundon, Cladonia macilenta Hoffm., C. parasitica (Hoffm.) Hoffm., Hypotrachyna bahiana (Nyl.) Hale, H. pseudosinuosa (Asahina) Hale, Lecanora argentata (Ach.) Malme, L. chlarothera Nyl., Lecidea albohyalina (Nyl.) Th. Fr., Xanthoria polycarpa (Hoffm.) Th. Fr. and Usnea cornuta Körb. Substrates, collecting sites and herbaria are recorded for each species.

We present a lichen checklist for the northern shore of the Gulf of Finland in the limits of St. Petersburg, Russia. This area has diverse lichen biota within the city limits, and has been comprehensively studied since 1893, which gives a good base for analysis of historical changes in lichen diversity. The documented lichen biota comprises 469 species (430 lichenized, 24 lichenicolous, 3 facultatively lichenicolous, and 12 non-lichenized saprobic fungi), of them 191 species are known from herbaria and literature for the period before 1991, and 436 species were recorded since 1991 to 2019. Thirty-three taxa were excluded from the lichen list of the study area as erroneous or dubious records. Altogether 48 species are new to St. Petersburg, including: Lecidea malmeana and Micarea czarnotae – new to Russia; Caloplaca lucifuga, Gyalecta nigricans, Micarea soralifera – new to European Russia; Agonimia flabelliformis, Endococcus verrucosus, Lecania turicensis, Micarea fallax, M. tomentosa, Xanthomendoza huculica – new to Northwestern European Russia; Lichenoconium lichenicola, Ramalina europaea, Sarcogyne hypophaea – not known also from the Leningrad Region. The studied lichen biota is moderately rich compared to other city territories. The history of economic development of the region has caused its serious transformation, degradation of natural habitats and therefore partial loss of lichen diversity. At the same time, human-made substrates and anthropogenic plant communities are inhabited by lichens, including species unknown in the natural habitats of the study area. However, 44 species recorded in the study area are red-listed in St. Petersburg, with 13 of them known only from historical collections. Forest communities, as well as historical parks, in NW part of St. Petersburg are important source of biodiversity on regional level nowadays and hopefully in future, and deserve protection.

The occurrence of lichens belonging to the genus Usnea was studied in Yakutia. Eight species have been revealed: U. barbata (L.) F.H. Wigg., U. cavernosa Tuck., U. dasypoga (Ach.) Nyl., U. glabrescens (Nyl. ex Vain.) Vain., U. hirta (L.) W.H. Wigg., U. lapponica Vain., U. longissima Ach. and U. subfloridana Stirt. Distribution maps, an identification key and notes with diagnostic features and distribution data for each species are provided.

Lichens and closely related fungi of manor parks of the Mogilev region (Republic of Belarus) 1 ГНУ Институт экспериментальной ботаники им. В. Ф. Купревича НАН Беларуси 220072, Республика Беларусь, г. Минск, ул. Академическая, д. 27. Тел.: +375 (17) 284-20-14, е-mail: lihenologs84@mail.ru 2 Белорусский государственный университет 220030, Республика Беларусь, г. Минск, пр. Независимости, д. 4. Тел.: +375 (17) 209-55-04, е-mail: lihenologs84@mail.ru 3 ФГБУН Ботанический институт им. В.Л. Комарова РАН 197376, Россия, г. Санкт-Петербург, ул. Профессора Попова, д. 2, е-mail: gagarinalv@binran.ru 4 ФГБУН Полярно-альпийский ботанический сад-институт им. Н. А. Аврорина КНЦ РАН 184256, Россия, Мурманская область, г. Кировск, ул. Ботанический сад. Тел.: +7 (81531) 5-14-36, e-mail: ajdarzapov@yandex.ru Аннотация. В результате обследования 13 усадебных парков Могилёвской области выявлены 108 видов ли-шайников, 4 вида нелихенизированных грибов и один лихенофильный гриб. Выделены специализированные, ин-дикаторные и редкие виды лишайников усадебных парков. Определена субстратная приуроченность лишайников и близкородственных грибов. Лишайник Gallowayella weberi впервые приводится для лихенобитоты Беларуси.Ключевые слова: лишайники, лихенобиота, усадебные парки, редкие виды, индикаторные виды, Могилёвская область.Abstract. A survey of 13 manor parks of the Mogilev region revealed 108 species of lichens, 4 non-lichenized saprobic and one lichenicolous fungi. Specialized, indicator and rare species of manor park lichens are distinguished. The substrate association of lichens and closely related fungi is determined. Lichen -Gallowayella weberi is given as the lichen biota of Belarus for the first time. Keywords: lichens, lichen biota, manor parks, rare species, indicator species, Mogilev region. DOI: 10.22281/2307DOI: 10.22281/ -4353-2018 Введение Сохранившиеся дворянские усадьбы являются важным мемориальным и культурным наследием Беларуси, отражением её истории и народных традиций. В настоящее время бóльшая часть таких усадеб, игравших значимую роль в истории современной и молодой республики, канула в лету, пройдя через войны, революции и реорганизации.Как своеобразный управленческий конгломерат усадьбы возникали в XVII-XVIII вв., и существовали довольно продолжительное время -до 15-х годов XX в. Про-ходя через призму архитектурных и культурных измерений, поместья в Беларуси изме-нялись на протяжении многих поколений. Усадьба являлась «родовым гнездом», и каж-дое поколение хозяев привносило что-то новое в её обустройство, включающее не толь-ко историко-культурные, архитектурные и мемориальные объекты, но и природную ос-нову. В большинстве усадеб в Беларуси жилые и хозяйственные постройки сохранились частично, фамильные усыпальницы и крипты разрушены или продолжают разрушаться, пруды осушены или заросли, лишь парки в отдельных усадьбах -наиболее хорошо со-хранившийся фрагмент усадебных комплексов.