The lichens and allied fungi of the Gladyshevskiy Protected Area (Saint Petersburg)
Gladyshevskiy regional protected area has been investigated at the limits of Saint Petersburg (Russia; biogeographical province Isthmus karelicus). This territory is valuable for Roschinka River ecosystems and natural forest landscapes. The current study is based on lichen data collected by authors within 2005–2013 and on historical herbarium of A. O. Kihlman (collected in 1893, includes 53 species). Altogether 310 species of lichen-forming, lichenicolous and non-lichenized fungi are reported from the protected area, among them historical collections of 20 species that were not found within the area nowadays. Caloplaca albolutescens (Nyl.) H. Olivier is published for the first time for European Russia (excluding Caucasus) and 25 species are new to St. Petersburg. The data on localities, habitat use and substratum use of Arthonia subfuscicola (Linds.) Triebel, Chaenotheca subroscida (Eitner) Zahlbr., Chaenothecopsis viridialba (Kremp.) Alb. Schmidt and Schismatomma pericleum (Ach.) Branth et Rostr. are for the first time provided for St. Petersburg. Altogether 14 indicator species and habitat specialists of biologically valuable forests are known from the area, but seven of them — Chaenotheca subroscida, Chaenothecopsis viridialba, Microcalicium disseminatum (Ach.) Vain., Nephroma parile (Ach.) Ach., N. resupinatum (L.) Ach., Ramalina thrausta (Ach.) Nyl. and Schismatomma pericleum — are known from historical data only and can be considered extinct from St. Petersburg. Also 14 species included in the Red Data Book of St. Petersburg (Prilozhenie…, 2014) are reported from Gladyshevskiy protected area, seven of them still present there: Anaptychia ciliaris (L.) Körb., Bacidia rubella (Hoffm.) A. Massal., Cladonia norvegica Tønsberg et Holien, C. stellaris (Opiz) Pouzar et Vězda, Leptogium teretiusculum (Wallr.) Arnold, Montanelia sorediata (Ach.) Divakar et al. and Umbilicaria polyphylla (L.) Baumg.