New records of basidiomycetes from the Pskov region in the Polistovskiy State Nature Reserve (Russia)

Abstract

Prior to a present paper, 918 species of basidiomycete fungi were known in the Pskov region (Russia), including 512 species recorded in the Sebezhskiy National Park. Fungal inventorying studies in Protected Areas are an important part of biodiversity assessment. The сonstantly expanding knowledge on this vast group of organisms,
powered by new finds in the field and advances in molecular genetics, make fungal inventorying in any territory a long-term effort rather than an isolated event. In 2019, we assessed the fungal biota of the
Polistovskiy State Nature Reserve (Pskov region, Russia) in various forest types in the core and buffer zones along nine designated
routes. The material was studied using the standard methods of fungal taxonomy. As a result, 74 basidomycete species new to Pskov region were revealed. Among them, six species (Galerina hybrida, Gymnopus erythropus, Lepiota boudieri, Pluteus velutinus, Rugosomyces obscurissimus, and Simocybe haustellaris) were new to the Northwest of European Russia and four species (Achroomyces effusus, Botryobasidium stigmatisporum, Galerina caulocystidiata, and Pseudobaeospora celluloderma) were new for Russia. The former are here provided
with brief notes, whereas the latter are supplied with descriptions of studied specimens, drawings of microstructures and discussion of their distribution, habitats, similar and closely related species, and current state of knowledge. We found also Hemistropahria
albocrenulata, a protected species in Finland and the adjacent Leningrad region and Novgorod region. Helicogloea compressa was registered for the second time in Russia, with another record in St. Petersburg city. Despite substantially expanding our knowledge of the mycobiota in both the Polistovskiy State Nature Reserve and Pskov region, the present data are still insufficient for a comprehensive quantitative analysis of its structure.

Full text

Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024
NEW RECORDS OF BASIDIOMYCETES FROM THE PSKOV REGION
IN THE POLISTOVSKIY STATE NATURE RESERVE (RUSSIA)
Lyudmila B. Kalinina1,*, Sergey Yu. Bolshakov1, Tatiana M. Bulyonkova2
1Komarov Botanical Institute of RAS, Russia
2Ershov Institute of Informatics Systems, SB RAS, Russia
*e-mail: lkalinina@binran.ru
Received: 07.02.2020. Revised: 29.04.2020. Accepted: 30.04.2020.
Prior to a present paper, 918 species of basidiomycete fungi were known in the Pskov region (Russia), including
512 species recorded in the Sebezhskiy National Park. Fungal inventorying studies in Protected Areas are an
important part of biodiversity assessment. The constantly expanding knowledge on this vast group of organisms,
powered by new nds in the eld and advances in molecular genetics, make fungal inventorying in any territory
a long-term effort rather than an isolated event. In 2019, we assessed the fungal biota of the Polistovskiy State
Nature Reserve (Pskov region, Russia) in various forest types in the core and buffer zones along nine designated
routes. The material was studied using the standard methods of fungal taxonomy. As a result, 74 basidomycete
species new to Pskov region were revealed. Among them, six species (Galerina hybrida, Gymnopus erythropus,
Lepiota boudieri, Pluteus velutinus, Rugosomyces obscurissimus, and Simocybe haustellaris) were new to the
Northwest of European Russia and four species (Achroomyces effusus, Botryobasidium stigmatisporum, Gale-
rina caulocystidiata, and Pseudobaeospora celluloderma) were new for Russia. The former are here provided
with brief notes, whereas the latter are supplied with descriptions of studied specimens, drawings of micro-
structures and discussion of their distribution, habitats, similar and closely related species, and current state of
knowledge. We found also Hemistropahria albocrenulata, a protected species in Finland and the adjacent Len-
ingrad region and Novgorod region. Helicogloea compressa was registered for the second time in Russia, with
another record in St. Petersburg city. Despite substantially expanding our knowledge of the mycobiota in both
the Polistovskiy State Nature Reserve and Pskov region, the present data are still insufcient for a comprehen-
sive quantitative analysis of its structure.
Key words: Achroomyces effusus, Botryobasidium stigmatisporum, Galerina caulocystidiata, Northwest of Eu-
ropean Russia, Polistovo-Lovat’ bog system, Pseudobaeospora celluloderma
Introduction
Fungi play an essential role as decomposers of
dead matter as well as mycorrhizal symbionts of
plants. Fungi inventory studies are a keystone for
further investigations. The knowledge of biodiver-
sity in Protected Areas (PAs) allows us to detect
indicator species, assess species rarity under un-
disturbed conditions, reveal community structures
and to investigate more complex processes and
phenomena. Fungi of PAs are the object of study in
several countries (e.g. Lisiewska & Tortić, 1990;
Roberts, 1999; Friedrich, 2002; Lacheva & Ra-
doukova, 2014; Kunttu et al., 2015; Bolshakov &
Volobuev, 2016; Telleria et al., 2016; Brandrud et
al., 2019; Erofeeva et al., 2019), sometimes with
an emphasis on rare and threatened species (e.g.
Adamčík et al., 2007a; Karasiński et al., 2009;
Langer et al., 2014; Holec et al., 2015) or on various
analyses of the revealed mycobiota (e.g. Iršėnaitė
et al., 2013; Baird et al., 2014; Gogoi & Parkash,
2015; Holec et al., 2015; Aučina et al., 2019).
As a comprehensive review of literature deal-
ing with fungi in Russian PAs is beyond the scope
of the present paper, we only point out that basidio-
mycetes in Protected Areas in northwestern Russia
and adjacent territories are studied quite well. The
studies dealing with fungi inventory have been car-
ried out in Nizhne-Svirsky State Nature Reserve,
Leningrad region (Zmitrovich et al., 2015), Cen-
tral-Forest State Nature Reserve, Tver region (Kot-
kova, 2014), Valdaiskiy National Park, Novgorod
region (Popov et al., 2013), and in Belorussian
Braslav Lakes National Park and Narochanskiy
National Park (Popov et al., 2013).
Until the present study, 918 basidiomycete
species were known in the whole Pskov region
(Kotkova & Popov, 2013; Popov et al., 2013; Bol-
shakov et al., 2019). The studies focused primar-
ily on the Sebezhskiy National Park with 512 spe-
cies revealed (Kovalenko et al., 2003; Kotkova &
Popov, 2012; Popov et al., 2013). Until now, there
were no other published data on fungi in the Polis-
tovskiy State Nature Reserve (PSNR).
The study, performed in the PSNR, was aimed
to reveal basidiomycete species new to Pskov re-
gion by pursuing the following tasks: 1) to per-
form an inventory of basidiomycetes in various
vegetation types in PSNR; 2) to identify collected

Fig. 1. A – Pskov region (in black) on the map of Russia. B – Pskov region. The richness of basidiomycete species registered in the
administrative districts of the Pskov region: white – no species registered, dotted – 1 to 50 species, blue – over 50 species (LK –
Loknyanskiy district, SB – Sebezhskiy district, SK – Strugokrasnenskiy district). Location of Polistovskiy State Nature Reserve is
marked by red. C – the routes in the Polistovskiy State Nature Reserve (PM – trail «Put’ Mokhovikov» («Bolete Path»), Du – mineral
island «Dubovets», PB – trail «Plavnitskoe Boloto» («Plavnitsk Wetland»), Sl – mineral island «Slepetnoe», Os – stow «Osinovik»,
Sa – stow «Sapozhok», Lo – mineral island «Maloe Loshye»). The core zone of the PA is outlined in red. The buffer zone is hatched.
specimens; 3) to compare the list of the discovered
species with extant data and to reveal new taxa; 4)
to compile a list of basidiomycete species new to
Pskov region and possibly to higher administrative
territories; 5) to describe the studied specimens of
species new to Russia; 6) to perform a preliminary
analysis of the obtained data.
Material and Methods
Study area
Pskov region is the easternmost administra-
tive region in the northwest of European Russia
(Leningrad region, Pskov region, and Novgorod
region according to Sennikov, 2005). This area
lies between 55.6166°–59.0166° N and 27.3500°–
31.5000° E, spanning 380 km from north to south
and 202 km from west to east, forming a somewhat
stretched shape along the NW-SE axis (Fig. 1). The
area is located within the northwestern part of the
Eastern European platform. It includes uplands in
its northern, central and southern parts as well as
lowlands in the west and the east of the region.
The PSNR is situated in the eastern part of
the Pskov region (Fig. 1). It was established in
1994 to protect the western part of Polistovo-
Lovat’ bog system, the eastern part of which is
protected by the Rdeisky State Nature Reserve
(Novgorod region). This area is mostly covered
with raised bogs in different development stag-
es (Bogdanovskaya-Guiheneuf, 1969). Several
mineral islands with various vegetation types
are located in the bog. There are some tempe-
rate broadleaf stands with Quercus robur L.,
Tilia cordata Mill., and Alnus glutinosa (L.)
Gaertn. in the southeastern part of the PA. In
the northern part of the PSNR, there are some
old-growth coniferous forests with Pinus sylves-
tris L. and Picea abies (L.) H. Karst. (Galanina,
2005). Bog margins are dominated by deciduous
forests with Betula spp. and Populus tremula L.,
secondary to coniferous stands. Sorbus aucupa-
ria L. is common in the undergrowth.
The eld investigations were performed by the
classical route method (or opportunistic sampling
according to Lodge et al., 2004) during an inven-
tory study of agaricoid fungi in various types of
forest vegetation in the core and buffer zones of the
PSNR. The routes are denoted as follows.
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Trail «Put’ Mokhovikov» («Bolete Path»). The
trail runs through the southeastern part of the PSNR
with abandoned villages and farmlands. Secondary
forests with Betula spp. and Populus tremula are
the most common along the path. But there are also
abundant mixed stands (Picea abies, Quercus ro-
bur, Tilia cordata) and a stretch of transitional bog
with Betula spp.
Mineral island «Dubovets». The island is cov-
ered with wet mixed Populus tremula and Picea
abies forest.
Trail «Plavnitskoe Boloto» («Plavnitsk Wet-
land»). The trail crosses various types of wetlands
(marshes, fens, and bogs) as well as secondary
Betula-Populus forest, Picea abies and Populus
tremula, Alnus glutinosa forest, a secondary post-
agricultural meadow, and a small mineral island
covered by mixed stands (Picea abies, Pinus syl-
vestris, Populus tremula). This is the most iconic
trail of the PSNR.
Mineral island «Slepetnoe». The vegetation
types of the mineral island are very diverse. They
include Alnus glutinosa forests, mixed Picea-Betu-
la stands with Tilia cordata and Sorbus aucuparia
in the undergrowth, and small areas with mixed
Quercus-Tilia stands.
Stow «Osinovik». The margin of the bog ex-
tending to the west is covered by old-growth Popu-
lus tremula forest with scattered old Picea abies
trees and undergrowth consisting of Alnus gluti-
nosa and abundant young Quercus robur.
Stow «Sapozhok». Bog margin protruding and
tapering from west to east into a massive raised
bog. The western part is covered by secondary
Populus tremula forest with a signicant propor-
tion of Quercus robur (both young and mature).
Mixed Picea abies forest with Alnus glutinosa in
the undergrowth covers the narrowing eastern part.
Mineral island «Maloe Loshye». The vegetation
of the island consists of mixed stands (Picea abies,
Populus tremula, Quercus robur, Tilia cordata).
Data sampling
The specimens were collected in the PSNR
in 2019. Samples were studied according to clas-
sical methods of fungal taxonomy (Ivoilov et
al., 2017). The taxonomy of species is presented
generally according to Funga Nordica (Knudsen
& Vesterholt, 2012). The nomenclature of taxa
follows the Index Fungorum (http://www.index-
fungorum.org/). Macroscopic features of sporo-
carps were assessed in the eld or shortly after
collection. Microscopic structures were observed
using Zeiss Axio Imager A1 and Zeiss AxioLab
A1 microscopes in squash preparations mounted
in KOH, 10% Congo Red in NH4OH, Melzer’s
reagent and Cotton Blue. Drawings of micro-
structures were made using InkScape from mi-
crophotographs taken with AxioCam MRc5 and
AxioVision Microscopy software. All specimens
were determined by the authors except for Ach-
roomyces effusus (J. Schröt.) Mig., identied by
Vera F. Malysheva. The studied material is depos-
ited in the Komarov Botanical Institute of RAS
Mycological Herbarium (LE).
Results
Below is the list of species found in the PSNR
and considered as new to the Pskov region. Each
record contains data on the collection location, in-
cluding administrative district, co-ordinates, and
protection status of the site (core or buffer zone),
vegetation type, substrate, date of collection, and
herbarium number. An asterisk (*) indicates spe-
cies found for the rst time in the northwest of
European Russia. An exclamation mark (!) is used
for species new to Russia; besides these names
are in bold. They are provided with a description
of the studied specimens and drawings of micro-
scopic structures.
! Achroomyces effusus (J. Schröt.) Mig.
– Bezhanitskiy district, trail «Plavnitskoe bolo-
to», core zone, 57.10167° N, 30.39167° E, bor-
der of Sphagnum bog and mixed forest (Populus
tremula, Picea abies), on rotten deciduous wood,
06.09.2019, LE 321787.
Corticioid heterobasidiomycete (Platy-
gloeales, Pucciniomycetes) with resupinate gelati-
nous basidiomata, is characterised by clavate pro-
basidia (Fig. 2b) and straight transversely septate
metabasidia (Wojewoda, 1977; Hansen & Knud-
sen, 1997). Mature metabasidia are 4-celled, with
lateral sterigmata (Fig. 2c). Spores are crescent
to broadly ellipsoid, germinating, hyaline, 5.7–
7.1 × 3.0–3.6 µm (Fig. 2a).
Arrhenia epichysium (Pers.) Redhead, Lutzoni,
Moncalvo & Vilgalys – Loknyanskiy district, stow
Osinovik, core zone, 57.09861° N, 30.58056° E,
Populus tremula forest with Picea abies and Quer-
cus robur in undergrowth, on trunk of Populus
tremula, 13.09.2019, LE 321788.
Arrhenia sphagnicola (Berk.) Redhead, Lu-
tzoni, Moncalvo & Vilgalys – Loknyanskiy dis-
trict, stow Sapozhok, core zone, 57.08194° N,
30.65917° E, Sphagnum bog, in Sphagnum,
09.09.2019, LE 321789.
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Fig. 2. Microscopic characteristics of Achroomyces effusus,
LE 321787; a – basidiospores, b – probasidia, c – metabasidia.
Boletus reticulatus Schaeff. – Loknyan-
skiy district, stow Maloe Loshye, core zone,
57.09722° N, 30.53056° E, coniferous forest with
Populus tremula and Betula sp., Tilia cordata, Sor-
bus aucuparia, Quercus robur in undergrowth, on
soil, 02.09.2019, LE 321790.
! Botryobasidium stigmatisporum Boidin &
Gilles. – Loknyanskiy district, trail «Put’ mok-
hovikov», buffer zone, 57.07194° N, 30.60639° E,
Alnus glutinosa forest, on rotten hardwood,
11.09.2019, LE 321791.
It is a corticioid species with ornamen-
ted spores. Hyphae are without clamps, basal
hyphae thick-walled, very broad, 7–16 µm,
rarely up to 21 µm (Fig. 3d). Basidia are 9.1–
13.8 × 6.3–7.2 µm, 6–8-spored (Fig. 3b,c).
Spores are 4.3–5.5 × 2.8–3.2 µm, thin-walled,
minutely asperulate (in FC or DIC microscopy),
ellipsoid (Fig. 3a). In our specimen, the spores
are narrower than those in the original descrip-
tion (Boidin & Gilles, 1988).
Fig. 3. Microscopic characteristics of Botryobasidium stigma-
tisporum LE 321791; a – basidiospores, b – young basidia, c –
mature basidia (only three sterigmata shown), d– basal hyphae.
Calyptella capula (Holmsk.) Quél. –
Loknyanskiy district, stow Sapozhok, core zone,
57.08292° N, 30.64311° E, mixed Picea abies and
Populus tremula forest, on herbaceous remnants,
09.09.2019, LE 321792.
Cheimonophyllum candidissimum (Sacc.)
Singer – Loknyanskiy district, stow Dubovets,
core zone, 57.07944° N, 30.67000° E, secondary
Betula-Populus forest, on trunk of Populus tremu-
la, 09.09.2019, LE 321793.
Clavulinopsis luteoalba (Rea) Corner –
Loknyanskiy district, stow Osinovik, core zone,
57.09861° N, 30.57611° E, coniferous forest
with Quercus robur in undergrowth, on soil,
13.09.2019, LE 321795; stow Slepetnoe, core
zone, 57.08361° N, 30.50611° E, Quercus-Tilia
stands, on soil, 03.09.2019, LE 321794.
Clitocybe candicans (Pers.) P. Kumm. –
Loknyanskiy district, stow Osinovik, core zone,
57.09917° N, 30.57722° E, old-growth Popu-
lus tremula forest, on litter, 13.09.2019, LE
321797; stow Slepetnoe, core zone, 57.08389° N,
30.50528° E, Alnus glutinosa forest, on litter,
03.09.2019, LE 321796.
Clitocybe inornata (Sowerby) Gillet –
Loknyanskiy district, stow Osinovik, core zone,
57.09861° N, 30.57611° E, coniferous forest
with Quercus robur in undergrowth, on litter,
13.09.2019, LE 321798.
Clitocybe phyllophila (Pers.) P. Kumm. –
Loknyanskiy district, trail «Put’ mokhovikov»,
buffer zone, 57.07194° N, 30.60639° E, Alnus glu-
tinosa forest, on litter, 11.09.2019, LE 321799.
Coprinopsis stercorea (Fr.) Redhead, Vil-
galys & Moncalvo – Loknyanskiy district,
stow Dubovets, core zone, 57.08278° N,
30.64778° E, coniferous forest with Populus
tremula and Corylus avellana, on elk faeces,
09.09.2019, LE 321800.
Cortinarius acutus (Pers.) Fr. – Loknyanskiy
district, stow Slepetnoe, core zone, 57.08389° N,
30.50528° E, Alnus glutinosa forest, on soil,
03.09.2019, LE 330201.
Cortinarius alnetorum (Velen.) M.M. Moser
– Loknyanskiy district, stow Slepetnoe, core zone,
57.08389° N, 30.50528° E, Alnus glutinosa forest,
on soil, 03.09.2019, LE 330202.
Cortinarius argenteopileatus Nezdojm. –
Loknyanskiy district, stow Slepetnoe, core zone,
57.08361° N, 30.50611° E, Quercus-Tilia stands,
on soil, 03.09.2019, LE 330203.
Cortinarius evernius (Fr.) Fr. – Bezhanitskiy
district, trail «Plavnitskoe boloto», buffer zone,
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

57.10194° N, 30.38972° E, coniferous forest with
Populus tremula, on soil, 06.09.2019, LE 330204.
Cortinarius fervidus P.D. Orton – Loknyanskiy
district, stow Slepetnoe, core zone, 57.08389° N,
30.50556° E, coniferous forest with Populus
tremula and Betula sp., in undergrowth – Tilia cor-
data, Sorbus aucuparia, Quercus robur, on soil,
03.09.2019, LE 330205.
Cortinarius exipes (Pers.) Fr. – Loknyanskiy
district, stow Slepetnoe, core zone, 57.08333° N,
30.50472° E, on the border of Sphagnum bog and
mixed forest (Populus tremula, Picea abies), on
soil, 03.09.2019, LE 330206.
Cortinarius glaucopus (Schaeff.) Gray –
Loknyanskiy district, stow Slepetnoe, core zone,
57.08389° N, 30.50556° E, coniferous forest with
Populus tremula and Betula sp., in undergrowth –
Tilia cordata, Sorbus aucuparia, Quercus robur,
on soil, 03.09.2019, LE 330207.
Cortinarius lucorum (Fr.) Berger – Loknyans-
kiy district, stow Osinovik, core zone, 57.09944° N,
30.57889° E, Populus tremula forest with Corylus
avellana, on soil, 13.09.2019, LE 330208.
Cortinarius paragaudis Fr. – Loknyanskiy dis-
trict, stow Maloe Loshye, core zone, 57.09722° N,
30.53056° E, coniferous forest with Populus
tremula and Betula sp., with Tilia cordata, Sorbus
aucuparia, Quercus robur in undergrowth, on soil,
02.09.2019, LE 330209.
Cortinarius porphyropus (Alb. & Schwein.)
Fr. – Bezhanitskiy district, trail «Plavnitskoe bolo-
to», buffer zone, 57.09889° N, 30.36944° E, Popu-
lus tremula forest, on soil, 06.09.2019, LE 330210.
Cortinarius talus Fr. – Loknyanskiy district, stow
Slepetnoe, core zone, 57.08333° N, 30.50611° E,
Tilia cordata forest, on soil, 03.09.2019, LE 330212;
57.08389° N, 30.50556° E, coniferous forest with
Populus tremula and Betula sp., with Tilia cordata,
Sorbus aucuparia, Quercus robur in undergrowth,
on soil, 03.09.2019, LE 330211.
Cortinarius torvus (Fr.) Fr. – Loknyanskiy
district, stow Osinovik, core zone, 57.09944° N,
30.57889° E, old-growth Populus tremula forest with
Corylus avellana, on soil, 13.09.2019, LE 330213.
Crepidotus applanatus (Pers.) P. Kumm. –
Loknyanskiy district, trail «Put’ mokhovikov»,
buffer zone, 57.06876° N, 30.58568° E, mixed for-
est, on rotten wood, 11.09.2019, LE 330214.
Crepidotus crocophyllus (Berk.) Sacc. –
Loknyanskiy district, stow Osinovik, core zone,
57.09861° N, 30.58111° E, coniferous forest with
Quercus robur in undergrowth, on trunk of Popu-
lus tremula, 13.09.2019, LE 330215.
Deconica phyllogena (Sacc.) Noordel. –
Loknyanskiy district, stow Dubovets, core zone,
57.07944° N, 30.67000° E, secondary Betula-
Populus forest, on litter, 09.09.2019, LE 330216.
Entoloma dysthales (Peck) Sacc. – Loknyan-
skiy district, trail «Put’ mokhovikov», buf-
fer zone, 57.06666° N, 30.60454° E, Populus
tremula forest, on moss-covered hardwood trunk,
11.09.2019, LE 330217.
Entoloma rhodocylix (Lasch) M.M. Moser –
Loknyanskiy district, stow Osinovik, core zone,
57.09917° N, 30.57722° E, old-growth Popu-
lus tremula forest, on moss-covered hardwood
trunk, 13.09.2019, LE 330219; 57.09944° N,
30.57889° E, Populus tremula forest with Cory-
lus avellana, on moss-covered hardwood trunk,
13.09.2019, LE 330218.
Entoloma sericellum (Fr.) P. Kumm. –
Loknyanskiy district, stow Sapozhok, core zone,
57.08250° N, 30.65278° E, coniferous forest, on
soil, 09.09.2019, LE 330220.
! Galerina caulocystidiata Arnolds. – Loknyan-
skiy district, stow Dubovets, core zone, 57.07944° N,
30.67000° E, secondary Betula-Populus forest, in
Sphagnum, 09.09.2019, LE 330221.
The specimen is represented by three ba-
sidiomata. Pileus is 3–10 mm in diameter, coni-
cal becoming campanulate with a somewhat
wavy margin, strongly hygrophanous: pale
beige-orange in dry weather, fawn to light-
brown when wet, translucently striate. Stipe is
35–50 × 1.5–2 mm, cylindrical, almost concol-
orous with pileus, entirely pubescent. Lamel-
lae are ventricose, light fawn, adnate to broadly
adnate, rather distant. Basidiospores are 10.5–
11.5 × 6.3–7.0 µm, broadly amygdaliform,
somewhat papillate, yellowish-brown in KOH,
rugulose (Fig. 4a). Basidia are 15–18 × 6–8
µm, 2-spored, narrowly clavate (Fig. 4b). Chei-
locystidia are abundant, forming a sterile edge,
36–45 × 3–5 × 9–15 µm, lageniform, with a
widened base (Fig. 4c). Pleurocystidia are ab-
sent. Pileipellis is a cutis. Caulocystidia are
numerous, 75–95 × 7–10 × 20–26 µm, lageni-
form, slightly but distinctly capitate, with wid-
ened base (Fig. 4d). Clamps are abundant.
* Galerina hybrida Kühner – Bezhanitskiy
district, trail «Plavnitskoe boloto», core zone,
57.10482° N, 30.38016° E, Sphagnum bog, in
Sphagnum, 06.09.2019, LE 330223; Loknyanskiy
district, stow Dubovets, core zone, 57.08081° N,
30.66209° E, Sphagnum bog, in Sphagnum,
09.09.2019, LE 330222.
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Fig. 4. Microscopic characteristics of Galerina caulocystidi-
ata LE 330221; a – basidiospores, b – basidia, c – cheilocys-
tidia, d – caulocystidia.
Galerina sphagnicola (G.F. Atk.) A.H.
Sm. & Singer – Loknyanskiy district, trail
«Put’ mokhovikov», core zone, 57.06722° N,
30.58694° E, Sphagnum bog, in Sphagnum,
11.09.2019, LE 330224.
Gamundia striatula (Kühner) Raithelh. – Loknyan-
skiy district, stow Osinovik, core zone, 57.09917° N,
30.57722° E, old-growth Populus tremula forest, on
rotten wood, 13.09.2019, LE 330225.
* Gymnopus erythropus (Pers.) Antonín,
Halling & Noordel. – Loknyanskiy district,
stow Slepetnoe, core zone, 57.08361° N,
30.50611° E, Quercus-Tilia stands, on litter,
03.09.2019, LE 330226.
Gymnopus terginus (Fr.) Antonín & Noordel.
– Loknyanskiy district, stow Slepetnoe, core zone,
57.08389° N, 30.50528° E, Alnus glutinosa forest,
on litter, 03.09.2019, LE 330227.
Helicogloea compressa (Ellis & Everh.) V.
Malysheva & K. Põldmaa – Bezhanitskiy district,
trail «Plavnitskoe boloto», buffer zone, 57.09889° N,
30.36944° E, Populus tremula forest, on rotten de-
ciduous wood, 06.09.2019, LE 330228.
Hemistropharia albocrenulata (Peck) Ja-
cobsson & E. Larss. – Loknyanskiy district, stow
Slepetnoe, core zone, 57.08389° N, 30.50556° E,
coniferous forest with Populus tremula and Betula
sp., with Tilia cordata, Sorbus aucuparia, Quercus
robur in undergrowth, at the base of old Populus
tremula, 03.09.2019, LE 330229.
Hydropus marginellus (Pers.) Singer –
Loknyanskiy district, stow Osinovik, core
zone, 57.09861° N, 30.58056° E, Populus
tremula forest with Picea abies and Quercus
robur in undergrowth, on trunk of Populus
tremula, 13.09.2019, LE 330232; trail «Put’
mokhovikov», buffer zone, 57.07194° N,
30.60639° E, Betula-Populus forest, on trunk of
Populus tremula, 11.09.2019, LE 330230; trail
«Put’ mokhovikov», buffer zone, 57.07278° N,
30.59917° E, Betula-Populus forest, on trunk
of Populus tremula, 11.09.2019, LE 330231.
* Lacrymaria glareosa (J. Favre) Watling –
Loknyanskiy district, trail «Put’ mokhovikov»,
buffer zone, 57.06611° N, 30.60806° E, dirt road-
side, on litter, 11.09.2019, LE 330233.
Lactarius aquizonatus Kytöv. – Bezhanits-
kiy district, trail «Plavnitskoe boloto», core zone,
57.10167° N, 30.39167° E, on the border of Sphag-
num bog and mixed forest (Populus tremula, Picea
abies), on soil, 06.09.2019, LE 330234.
Lactarius glyciosmus (Fr.) Fr. – Loknyans-
kiy district, trail «Put’ mokhovikov», core zone,
57.06876° N, 30.58568° E, secondary Betula-
Populus forest, on soil, 11.09.2019, LE 330235.
Lactarius hysginus (Fr.) Fr. – Loknyanskiy
district, stow Dubovets, core zone, 57.07806° N,
30.66972° E, coniferous forest, on soil, 09.09.2019,
LE 330236.
Lactarius spinosulus Quél. & Le Bret. – Bezha-
nitskiy district, trail «Plavnitskoe boloto», buffer
zone, 57.09748° N, 30.37416° E, secondary Betula-
Populus forest, on soil, 06.09.2019, LE 330237.
Lactarius tabidus Fr. – Loknyanskiy dis-
trict, stow Dubovets, core zone, 57.07806° N,
30.66972° E, coniferous forest, on soil,
09.09.2019, LE 330238; stow Osinovik, core
zone, 57.09944° N, 30.57889° E, Populus
tremula forest with Corylus avellana, on soil,
13.09.2019, LE 330239.
Lactarius vietus (Fr.) Fr. – Loknyanskiy
district, trail «Put’ mokhovikov», buffer zone,
57.06583° N, 30.59361° E, on the border of
Sphagnum bog and mixed forest (Populus
tremula, Picea abies), on soil, 11.09.2019, LE
330241; stow Slepetnoe, core zone, 57.08333° N,
30.50472° E, Alnus glutinosa forest, on soil,
03.09.2019, LE 330240.
* Lepiota boudieri Bres. – Loknyanskiy
district, trail «Put’ mokhovikov», buffer zone,
57.10417° N, 30.37083° E, secondary Betula-
Populus forest, on litter, 11.09.2019, LE 330242.
Lyophyllum boudieri Kühner & Romagn. –
Loknyanskiy district, stow Dubovets, core zone,
57.07806° N, 30.66972° E, coniferous forest, on
litter, 09.09.2019, LE 330243.
Lyophyllum rancidum (Fr.) Singer – Loknyan-
skiy district, trail «Put’ mokhovikov», buffer zone,
57.07110° N, 30.59450° E, secondary Betula-
Populus forest, on litter, 11.09.2019, LE 330244.
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Lyophyllum tylicolor (Fr.) M. Lange & Sivert-
sen – Loknyanskiy district, stow Osinovik, core
zone, 57.09861° N, 30.57611° E, coniferous fo-
rest with Quercus robur in undergrowth, on litter,
13.09.2019, LE 330245.
Mycena avoalba (Fr.) Quél. – Bezhanitskiy
district, trail «Plavnitskoe boloto», buffer zone,
57.09833° N, 30.37194° E, Populus tremula for-
est, on litter, 06.09.2019, LE 330246; Loknyanskiy
district, stow Dubovets, core zone, 57.08278° N,
30.64778° E, Populus tremula forest with Corylus
avellana, on litter, 09.09.2019, LE 330247.
Mycenella lasiosperma (Bres.) Locq. –
Loknyanskiy district, stow Dubovets, core zone,
57.07944° N, 30.67000° E, secondary Betula-
Populus forest, on trunk of Populus tremula,
09.09.2019, LE 330248.
Panaeolus alcis M.M. Moser – Loknyanskiy
district, stow Sapozhok, core zone, 57.07750° N,
30.66972° E, coniferous forest with Corylus avel-
lana, on elk dung, 09.09.2019, LE 330249.
Phaeoclavulina accida (Fr.) Giachini – Loknyan-
skiy district, stow Sapozhok, core zone, 57.08278° N,
30.64778° E, Populus tremula forest with Corylus
avellana, on soil, 09.09.2019, LE 330250.
Phaeogalera stagnina (Fr.) Pegler & T.W.K.
Young – Loknyanskiy district, stow Dubovets,
core zone, 57.08081° N, 30.66209° E, Sphagnum
bog, in Sphagnum, 09.09.2019, LE 330251.
Pholiota astragalina (Fr.) Singer – Loknyan-
skiy district, trail «Put’ mokhovikov», buffer zone,
57.07110° N, 30.59450° E, coniferous forest with Pop-
ulus tremula, on rotten wood, 11.09.2019, LE 330252.
Pholiota conissans (Fr.) Kuyper & Tjall.-
Beuk. – Loknyanskiy district, trail «Put’ mok-
hovikov», buffer zone, 57.06583° N, 30.59972° E,
secondary Betula-Populus forest, on rotten wood,
11.09.2019, LE 330253.
Pluteus hispidulus (Fr.) Gillet – Loknyans-
kiy district, trail «Put’ mokhovikov», core zone,
57.06583° N, 30.59361° E, on the border of
Sphagnum bog and mixed forest (Populus tremu-
la, Picea abies), on trunk of Populus tremula,
11.09.2019, LE 330254.
Pluteus podospileus Sacc. & Cub. –
Loknyanskiy district, stow Dubovets, core zone,
57.07944° N, 30.67000° E, secondary Betula-
Populus forest, on rotten wood, 09.09.2019, LE
330255; trail «Put’ mokhovikov», buffer zone,
57.07194° N, 30.60639° E, Alnus glutinosa forest,
on rotten wood, 11.09.2019, LE 330256.
Pluteus semibulbosus (Lasch) Quél. –
Loknyanskiy district, stow Dubovets, core
zone, 57.07944° N, 30.67000° E, secondary
Betula-Populus forest, on trunk of Populus
tremula, 09.09.2019, LE 330257.
* Pluteus velutinus C.K. Pradeep, Justo
& K.B. Vrinda – Loknyanskiy district, trail
«Put’ mokhovikov», buffer zone, 57.06556° N,
30.60694° E, Populus tremula forest, on rotten
wood, 11.09.2019, LE 330258.
Psathyrella piluliformis (Bull.) P.D. Orton –
Loknyanskiy district, stow Sapozhok, core zone,
57.08278° N, 30.64778° E, Populus tremula
forest with Corylus avellana, on rotten wood,
09.09.2019, LE 330259.
! Pseudobaeospora celluloderma Bas – Bezh-
anitskiy district, trail «Plavnitskoe boloto», buffer
zone, 57.10389° N, 30.36944° E, secondary mead-
ow, on herbal remnants, 06.09.2019, LE 330260.
The specimen is represented by two basidi-
omata. Pileus is 3–5 mm in diameter, almost
at, somewhat lilaceous; stipe 10–25 × 0.5–1
mm, cylindrical, concolorous with cap, -
brillose. Lamellae are ventricose, concolor-
ous with pileus, emarginate, sometimes with a
small decurrent tooth, distant. Basidiospores are
3.8–4.2 × 2.7–3.0 µm, very broadly ellipsoid,
thin-walled, hyaline (in preparation made of la-
mellae), or thick-walled and slightly dextrinoid
in preparations made of the stipe surface (Fig.
5a). Basidia are 16–25 × 4–5 µm, 4-spored, nar-
rowly clavate to almost cylindrical (Fig. 5b).
Cheilocystidia and pleurocystidia are absent.
Pileipellis is a hymeniderm with terminal cells
12.3–27.3 × 8.3–12.2 µm, clavate to subglobose,
sometimes pedunculate (Fig. 5d). Caulocystidia
are 25–33 × 5–8 µm, liform, clavate to subcla-
vate, sometimes swollen at the base (Fig. 5c).
Fig. 5. Microscopic characteristics of Pseudobaeospora cellu-
loderma LE 330260; a – basidiospores, b – basidia (only two
sterigmata shown), c – caulocystidia, d – elements of pileipellis.
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Psilocybe turcola J. Favre – Loknyanskiy dis-
trict, stow Maloe Loshye, core zone, 57.09722° N,
30.53056° E, coniferous forest with Populus
tremula and Betula sp., with Tilia cordata, Sor-
bus aucuparia, Quercus robur in undergrowth, in
Sphagnum, 02.09.2019, LE 330261.
* Rugosomyces obscurissimus (A. Pearson)
Bon – Loknyanskiy district, stow Osinovik, core
zone, 57.09861° N, 30.58056° E, Populus tremula
forest with Picea abies and Quercus robur in un-
dergrowth, on soil, 13.09.2019, LE 330262.
Russula betularum Hora – Loknyanskiy district,
stow Dubovets, core zone, 57.07806° N, 30.66972° E,
coniferous forest, on soil, 09.09.2019, LE 330263.
Russula gracillima Jul. Schäff. – Bezhanitskiy
district, trail «Plavnitskoe boloto», buffer zone,
57.10194° N, 30.38972° E, coniferous forest with
Populus tremula, on soil, 06.09.2019, LE 330264.
Simocybe haustellaris (Fr.) Watling –
Loknyanskiy district, stow Dubovets, core zone,
57.07944° N, 30.67000° E, Populus forest with
Betula sp., on rotten wood, 09.09.2019, LE
330266; stow Osinovik, core zone, 57.09861° N,
30.58056° E, Populus forest with Picea abies and
Quercus robur in undergrowth, on rotten wood,
13.09.2019, LE 330265.
Stropharia alcis Kytöv. – Loknyanskiy dis-
trict, stow Dubovets, core zone, 57.08278° N,
30.64778° E, Populus tremula forest with Corylus
avellana, on elk dung, 09.09.2019, LE 330268;
trail «Put’ mokhovikov», core zone, 57.06583° N,
30.59361° E, on the border of Sphagnum bog and
mixed forest (Populus tremula, Picea abies), on elk
dung, 11.09.2019, LE 330269; stow Slepetnoe, core
zone, 57.08389° N, 30.50528° E, Alnus glutinosa
forest, on elk faeces, 03.09.2019, LE 330267.
Tomentella lapida (Pers.) Stalpers – Loknyans-
kiy district, stow Osinovik, core zone, 57.09861° N,
30.57611° E, coniferous forest with Quercus ro-
bur in undergrowth, on rotten deciduous wood,
13.09.2019, LE 330270.
Tricholoma columbetta (Fr.) P. Kumm. –
Bezhanitskiy district, trail «Plavnitskoe boloto»,
buffer zone, 57.10389° N, 30.36944° E, secondary
meadow, on soil, 06.09.2019, LE 330271.
Tricholoma frondosae Kalamees & Shchukin
– Loknyanskiy district, stow Slepetnoe, core zone,
57.08361° N, 30.50611° E, Quercus-Tilia stands,
on soil, 03.09.2019, LE 330272.
Tricholoma saponaceum (Fr.) P. Kumm. –
Bezhanitskiy district, trail «Plavnitskoe boloto»,
core zone, 57.10167° N, 30.39167° E, on the bor-
der of Sphagnum bog and mixed forest (Populus
tremula, Picea abies), on soil, 06.09.2019, LE
330273; Loknyanskiy district, stow Sapozhok,
core zone, 57.08278° N, 30.64778° E, coniferous
forest with Populus tremula and Corylus avellana,
on soil, 09.09.2019, LE 330274.
Xenasma pruinosum (Pat.) Donk – Bezhanits-
kiy district, trail «Plavnitskoe boloto», core zone,
57.09889° N, 30.36944° E, Populus forest, on rot-
ten deciduous wood, 06.09.2019, LE 330275.
Discussion
Any reasonable analysis of a community struc-
ture is impossible without previous inventory stud-
ies and the fullest possible revealing of a species
list. Nowadays, in many relatively sufcient studied
PAs in Russia, the number of known basidiomycete
species is more than 200. Our study, comprising 74
species, is obviously insufcient for any community
analysis or revealing the peculiarities of the PSNR
fungi. Nevertheless, even the incomplete existing
check-list has resulted in new fungi for the whole
country and other noteworthy species.
Basidiomycetes new to Russia
Of the 74 basidiomycetes presented in the pa-
per, four species were recorded for the rst time in
Russia. Below, we discuss their history, distribu-
tion, habitats, similar or closely related species and
current state of knowledge.
Achroomyces effusus was described from Po-
land. It is currently known from several European
countries (Wojewoda, 1977; Jülich, 1984; Tejk-
lová & Zíbarová, 2018), being likely overlooked
due to inconspicuous basidiomata. Wojewoda
(1977) mentioned that there may be two species
under this name, as there are conicting reports
on the presence or absence of clamps on hyphae.
In our specimen, clamps are present. In addition,
this species was synonymised with Colacogloea
peniophorae (Bourdot & Galzin) Oberw., R. Bauer
& Bandoni (Krieglsteiner, 2000). The latter parasi-
tises on corticiod fungi (Oberwinkler et al., 1990),
and belongs to the Microbotryomycetes (Aime et
al., 2014), whereas A. effusus is considered to be in
the Pucciniomycetes. As there have not been any
recent taxonomic studies of the Platygloeaceae, we
take treat species according to the available taxo-
nomic work based on morphological features only.
This species is associated with dead trunks and
branches of deciduous trees, less often conifers. Thus,
the most common species is reported from wood with
Alnus incana (Bourdot & Galzin, 1928; Wojewoda,
1977; Jülich, 1984; Tejklová & Zíbarová, 2018). There
are records on Fagus sylvatica L. (Christiansen, 1959;
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Ingold, 1988), Sambucus sp. (Altermatt & Mornand,
1991), Abies alba Mill. (Christiansen, 1959). Our re-
cord was made on an unidentied deciduous wood,
most probably Populus tremula, which is a new, not
previously noted, substrate for this species. There is al-
most no information on vegetation conditions, usually
general mentioning like deciduous and coniferous for-
ests. In Slovakia, A. effusus is known in swamp-fen al-
der carr (Tejklová & Zíbarová, 2018). Our record was
made at the border of a Populus tremula – Picea abies
forest with a bog, but relatively nearby were also fens
with Alnus glutinosa forest.
Botryobasidium stigmatisporum was described
from Réunion in the Indian Ocean (east of Mada-
gascar) (Boidin & Gilles, 1988). Besides the type
locality, in the Southern Hemisphere, the species is
known from Argentina (Greslebin & Rajchenberg,
2003). In Europe, the species has been recorded in
France and Slovakia (Hagara, 2001; Bernicchia &
Gorjón, 2010). Our record, about 1300 km from
the nearest location, in Slovakia, considerably ex-
tends the known range of the species in Europe
eastwards and northwards.
How to separate B. stigmatisporum from simi-
lar species is unclear. Another European species, B.
asperulum (D.P. Rogers) Boidin, has nely orna-
mented ellipsoid to subglobose spores, measuring
4.5–5.5 × 3.5–4.5 µm. Botryobasidium stigmatispo-
rum spores are ellipsoid to ovoid, with very ne or-
namentation and measure 5.2–6.7(7) × 3.2–4.3 µm
(Langer, 1994; Bernicchia & Gorjón, 2010). Thus,
these two species differ in spore shape and size. On
the basis of the shape and length of the spores, we
identied our specimen as B. stigmatisporum.
According to Hjortstam (1983), B. asperulum
is very close to Botryobasidium pruinatum (Bres.)
J. Erikss. and Botryobasidium laeve (J. Erikss.)
Parmasto. The verruculose spores form an only
difference. According to Maekawa (1990), the ho-
lotypes of B. asperulum, B. laeve and B. pruinatum
all have ornamented spores in scanning electron
microscopy (SEM) and are indistinguishable mi-
croscopically. Thus, they should be synonyms with
the priority of B. pruinatum. A SEM study revealed
that the spores of Botryobasidium medium J. Erikss.’s
holotype are also ornamented (Maekawa, 1991).
There is no mention of any molecular stud-
ies of this group of Botryobasidium species in the
available literature. A large-scale molecular study
of this group is necessary to identify taxonomical-
ly important morphological features of individual
species in this genus. Here, we adopt the concept
of this group proposed by Langer (1994).
Botryobasidium stigmatisporum is reported to
be an indiscriminate species that develops on nu-
merous woody substrates. Due to the considerable
geographical distribution of the known locations,
the range of substrates is very wide, including both
deciduous and coniferous species. In Réunion, the
species is recorded on Philippia sp. (Ericaceae), in
Argentina on Austrocedrus chilensis (D.Don) Pic.
Serm. & Bizzarri (Cupressaceae) (Boidin & Gilles,
1988; Greslebin & Rajchenberg, 2003). A record
in Slovakia has been discovered on burnt twigs of
Quercus sp. (Hagara, 2001). The vegetation con-
ditions, in which this species is observed, vary
drastically, from tropical rainforests to temperate
forests in the Andes Mountains and in Europe. Our
record is very close to that in Slovakia. Unfortu-
nately, it was not possible to identify the substrate
accurately. Most likely it is Quercus robur.
Galerina caulocystidiata was described from the
Netherlands (Arnolds, 1982). It is also known from
Poland (Gierczyk et al., 2019), the Czech Republic
(Tejklová, 2018), Belgium (Walleyn & Vandeven,
2006), and Germany (Lüderitz et al., 2016). Accord-
ing to Arnolds (1982), typical features of the species
are the absence of pleurocystidia and the presence of
a well-developed veil. In our specimen, no veil or its
remnants were observed. However, since the pres-
ence of the veil is probably an unreliable taxonomic
character (Arnolds & De Vries, 1998), we consider
the studied specimen to be G. caulocystidiata due to
the total absence of pleurocystidia.
There is no information on habitat of the species
neither in the protologue (Arnolds, 1982) nor on the
Belgian checklist (Walleyn & Vandeven, 2006). A
more or less detailed description of G. caulocys-
tidiata’s habitat is given for Poland, namely «near
mouth of Beskidnik stream; spruce brushwood;
mosses» (Gierczyk et al., 2019). For the Czech re-
cord, there is a description of the studied locality as
«dry meadow». But no precise information on G.
caulocystidiata’s habitat can be found in Tejklová
(2018). A similar situation with the German record,
information about which is present in results of
mycological workshops conducted near the town
of Leck, Schleswig-Holstein. The studied areas
represent «inland and coastal dunes as well as
the expanding dunes of the Isle of Amrum and
the Isle of Sylt» (Lüderitz et al., 2016). Detailed
descriptions of habitats are given for several spe-
cies, but not for G. caulocystidiada. Only a total
list of macromycetes found in the area of Leck-
feld-North in 1989–2015 includes G. caulocystidi-
ata with no additional information except the note
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

that the species is not indicated on the Red lists of
Germany nor Schleswig-Holstein. We have found
the specimen in Sphagnum in a secondary Betula-
Populus forest located at the edge of an inner mineral
island. Our habitat is much more similar to the Po-
lish location, but not exactly the same. The Czech
habitat differs considerably. It allows us to assume
that the species is not habitat-specic. However,
there is another and more realistic possibility. The
precise locality of the Czech record may be some
place with mosses, not a dry meadow.
The species is very similar to the widely distrib-
uted and common Galerina vittiformis (Fr.) Singer,
and differs from the latter only by the total absence
of pleurocystidia. Thus, it is impossible to identify
the species in the eld, meaning G. caulocystidiata
is likely a more widespread species, overlooked due
to its striking similarity to G. vittiformis.
Pseudobaeospora celluloderma is described from
Great Britain (Bas, 2002). The species has been repor-
ted from Germany, Finland, Sweden (Bas, 2003), and
Slovakia (Adamčík et al., 2007b). Pseudobaeospora
celluloderma is the fourth species of the genus known
in Russia (Singer, 1938; Vasilyeva, 1973; Morozova
& Popov, 2013). Due to the tiny size of basidiomata
(pileus diameter is usually less than 5–6 mm), pur-
ple or lilac colour, distant lamellae (L = 15–17) and
hygrophanous, translucently striate pileus, the spe-
cies can be easily identied in the eld (Adamčík
et al., 2007b). Conspicuous microscopical features
are the absence of hymenial cystidia, pileipellis as
irregular hymeniderm with very broadly clavate to
subglobose terminal cells; the unique spores are hy-
aline and thin-walled in young specimens becoming
slightly dextrinoid and thick-walled after discharge
from the sterigmata.
Bas (2003) provided a quite wide diversity of
habitats for P. celluloderma, ranging from woody
debris in various types of forests and ruderal places
to felted turf in moist meadows, with preference
to calcareous and rich soils. Adamčík et al. (2007b)
found the species mostly in various meadows, old
pastures among different herbaceous plants. Also,
they mentioned that the basidiomata were terrestrial,
predominantly on peaty soils. Our specimen was
found on herbal remnants in a secondary meadow.
On the basis of the current state of knowledge, the
typical habitat of the species can be described as
meadow on peaty soil.
Noteworthy species
In addition to the species discussed above, sev-
eral more records are noteworthy. Below is a list of
six species new to Northwestern European Russia,
with brief comments.
Galerina hybrida is closely related to Galerina
tibiicystis (G.F. Atk.) Kühner. It differs from the
latter by narrower spores stretched out into the cal-
lus (Gulden, 2010). It is a sphagnicolous species,
considered being common in raised bogs (Gulden,
2010; Vašutová et al., 2013).
Gymnopus erythropus is widespread in tem-
perate regions of Europe. The species can be easily
recognised by its smooth dark reddish-brown stipe
(Antonín & Noordeloos, 2010). It develops on hu-
mus in deciduous forests, also on fallen branches
of hardwood trees.
Lepiota boudieri is very closely related to the
more common L. castanea Quél. These two spe-
cies are almost indistinguishable in the eld. Fortu-
nately, the clamped hyphae of the pileipellis make
the species easily identiable microscopically
(Noordeloos et al., 2001). It is a saprotrophic spe-
cies, preferring rich soils in various forest types.
Pluteus velutinus was described recently from In-
dia (Pradeep et al., 2012). A remarkable feature is the
peculiar shape of pleurocystidia with apical digitate
projections. It is a lignicolous species. But it was also
reported growing on litter (Malysheva et al., 2016).
Rugosomyces obscurissimus is distinguished by
its relatively dark, purplish brown, purplish black
pileus and slightly paler brillose stipe. Key mi-
croscopical features include hymeniderm pileipellis
made up of sphaeropedunculate elements and cylin-
drical to subconical hyaline spores. It is a saprobic
species. It develops on litter in forests and on unfer-
tilised pastures (Knudsen & Vesterholt, 2012).
Simocybe haustellaris has tiny pruinose sporo-
carps (pileus is up to 10 mm) with eccentric stipe.
It is a saprobic species on deciduous wood, com-
mon and widespread in temperate regions. It is
probably overlooked.
Hemistropharia albocrenulata, Helicogloea
compressa, and Xenasma pruinosum are notewor-
thy as threatened or rarely registered in Russia.
Hemistropharia albocrenulata usually develops at
the bases of old-growth living Populus tremula, and
it is considered as vulnerable and as a species un-
der strict protection according to the Finnish nature
conservation decree (Hyvärinen et al., 2019), and in
Novgorod region and Leningrad region in Russia
(Vetkin et al., 2015; Geltman, 2018). Helicogloea
compressa is registered for the second time in Rus-
sia, with a rst record in Saint Petersburg (Spirin
et al., 2018). Probably the species is overlooked.
Xenasma pruinosum is a corticioid species, wide-
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

ly distributed around the world and known from
Asia, Europe, Africa, North and South America
(Oberwinkler, 1965; Domański, 1992; Dai, 2011).
In Russia, it is reported from seven regions, including
the most recent mention from Leningrad region
(Kotkova, 2020). Most likely, surveys overlook the
species due to its small size, pale grey to bluish-grey
basidiomata. It is readily recognised by the minutely
encrusted pleural basidia (observed in Cotton Blue),
ellipsoid spores, and basally slightly thick-walled
pseudocystidia with an amorphous apical globule
(Oberwinkler, 1965; Hjortstam et al., 1988). It is a
saprobic species developing on deciduous, rarely on
coniferous wood.
Conclusions
Currently, 992 species of Agaricomycetes, in-
cluding the 74 species presented in the paper, are
known in the Pskov region. Six species (Galerina
hybrida, Gymnopus erythropus, Lepiota boudieri,
Pluteus velutinus, Rugosomyces obscurissimus,
Simocybe haustellaris) are new to Northwestern
European Russia, and four species (Achroomyces
effusus, Botryobasidium stigmatisporum, Galeri-
na caulocystidiata, Pseudobaeospora celluloder-
ma) were recorded for the rst time in Russia. In
many well-studied Protected Areas, the number of
known basidiomycete species exceeds 200, mean-
ing that the fungal diversity of the Polistovskiy
State Nature Reserve needs further investigation.
The authors plan to continue their studies in the
near future.
Acknowledgements
The authors are very grateful to Vera F. Malysheva (Ko-
marov Botanical Institute of RAS, Russia) for the identica-
tion of Achroomyces effusus. The rst author also would like
to thank Svetlana Yu. Igosheva (Senior Researcher of the
Polistovskiy State Nature Reserve, Russia) for the opportu-
nity to work in the Protected Area, inspectors of the PSNR as
well as volunteers Ekaterina Knorring (Russia) and Alexandra
Volkova (Russia) for their valuable help during eld work. The
study has been carried out within the framework of the insti-
tutional research project of the Komarov Botanical Institute
(AAAA-A19-119020890079-6) and partly supported by the
Russian Foundation for Basic Researches, project No. 20-04-
00349 using the equipment of the Core Facility Centre «Cell
and Molecular Technologies in Plant Science» at the Komarov
Botanical Institute, RAS (St. Petersburg, Russia).
References
Adamčík S., Christensen M., Heilmann-Clausen J., Walleyn
R. 2007a. Fungal diversity in the Poloniny National
Park with emphasis on indicator species of conserva-
tion value of beech forests in Europe. Czech Mycology
59(1): 67–81.
Adamčík S., Ripková S., Kučera V. 2007b. Re-evaluation
of morphological variability of Pseudobaeospora
group Celluloderma (Agaricales, Basidiomycota).
Nova Hedwigia 85(3): 365–377. DOI: 10.1127/0029-
5035/2007/0085-0365
Aime M.C., Toome M., McLaughlin D.J. 2014. Puccini-
omycotina. In: D.J. McLaughlin, J.W. Spatafora (Eds.):
Systematics and Evolution: Part A. The Mycota. Vol.
7. Berlin, Heidelberg: Springer. P. 271–294. DOI:
10.1007/978-3-642-55318-9_10
Altermatt C., Mornand J. 1991. Contribution à la connais-
sance des champignons de Maine-et-Loire. 1. Aphyl-
lophoromycetidae (Rea) Bon p.p. Auriculariomyceti-
dae Locq. p.p. Bulletin de la Société Mycologique de
France 107(2): 53–84.
Antonín V., Noordeloos M.E. 2010. A monograph of maras-
mioid and collybioid fungi in Europe. Eching: IHW-
Verlag. 478 p.
Arnolds E. 1982. Ecology and coenology of macrofungi in
grasslands and moist heathlands in Drenthe, the Neth-
erlands. Part 2. Autecology. Part 3. Taxonomy. Biblio-
theca Mycologica. Vol. 90. Vaduz: J. Cramer. 501 p.
Arnolds E., De Vries B. 1998. On the identity of the new taxa
of Galerina (Agaricales) provisionally described by J.J.
Barkman. Persoonia 17(1): 1–28.
Aučina A., Rudawska M., Wilgan R., Janowski D., Skridaila
A., Dapkūnienė S., Leski T. 2019. Functional diversity
of ectomycorrhizal fungal communities along a peat-
land–forest gradient. Pedobiologia 74: 15–23. DOI:
10.1016/j.pedobi.2019.03.001
Baird R., Stokes C.E., Wood-Jones A., Alexander M., Watson
C., Taylor G., Johnson K., Remaley T., Diehl S. 2014.
Fleshy Saprobic and Ectomycorrhizal Fungal Commu-
nities Associated with Healthy and Declining Eastern
Hemlock Stands in Great Smoky Mountains National
Park. Southeastern Naturalist 13(6): 192–218. DOI:
10.1656/058.013.s613
Bas C. 2002. A reconnaissance of the genus Pseudobaeos-
pora in Europe I. Persoonia 18(1): 115–122.
Bas C. 2003. A reconnaissance of the genus Pseudobaeos-
pora in Europe II. Persoonia 18(2): 163–199.
Bernicchia A., Gorjón S.P. 2010. Corticiaceae s.l. Fungi Eu-
ropaei. Vol. 12. Alassio: Edizioni Candusso. 1008 p.
Bogdanovskaya-Guiheneuf I.D. 1969. Patterns of Sphag-
num bogs formation on the example of the Polistovo-
Lovatsky massif. Leningrad: Nauka. 186 p. [In Russian]
Boidin J., Gilles G. 1988. Basidiomycètes Aphyllophorales
de l’île de la Réunion: X. Compléments aux genres trai-
tés antérieurement (1re partie). Bulletin de La Société
Mycologique de France 104(2): 59–71.
Bolshakov S.Yu., Volobuev S.V. 2016. New data on aphyl-
lophoroid fungi of the Yamskaya Steppe (Belogorye
Nature Reserve, Belgorod region). Bulletin of Bryansk
Department of Russian Botanical Society 2(8): 18–25.
[In Russian]
Bolshakov S.Yu., Volobuev S.V., Voronina E.Yu., Ezhov
O.N., Kalinina L.B., Palamarchuk M.A., Palomozh-
nykh E.A., Potapov K.O., Shiryaeva O.S. 2019. Biodi-
versity of Agaricomycetes of European Russia: results
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

and prospects of a data compilation project. In: Innova-
tions and Traditions in Modern Botany (St. Petersburg,
21–25 October 2019). St. Petersburg: Komarov Botani-
cal Institute. P. 13. [In Russian]
Bourdot H., Galzin A. 1928. Contribution a la ore my-
cologique de la France. I. Hymenomycètes de France.
Hétérobasidiés – Homobasidiés gymnocarpes. Sceaux:
Marcel Bry, Dessinateur Imprimeur. 761 p.
Brandrud T.E., Gorbunova I.A., Ageev D.V., Dahlberg A.,
Dima B., Morozova O.V., Svetasheva T.Yu. 2019. New
data on Cortinarius funga (Agaricales, Basidiomyco-
ta) from Altaiskiy Nature Reserve and Gorno-Altaysk
area (SW Siberia, Russia). Mikologiya i Fitopatologiya
53(6): 325–341. DOI: 10.1134/S0026364819060035
Christiansen M.P. 1959. Danish resupinate fungi. Part 1. As-
comycetes and Heterobasidiomycetes. Dansk Botanisk
Arkiv 19(1): 5–55.
Dai Y.C. 2011. A revised checklist of corticioid and hydnoid
fungi in China for 2010. Mycoscience 52(1): 69–79.
DOI: 10.1007/S10267-010-0068-1
Domański S. 1992. Mała ora grzybów. To m I. Basidiomyce-
tes (Podstawczaki). Aphyllophorales (Bezblaszkowce).
Część 7. Corticiaceae. Sarcodontia – Ypsilonidium,
Christiansenia & Syzygospora. Kraków: Polska Aka-
demia Nauk, Instytut Botaniki im. W. Szafera. 258 p.
Erofeeva E.A., Bukharova N.V., Bulakh E.M. 2019. First data
on basidial macromycetes at the cluster Zabelovsky of
the Bastak Nature Reserve (Jewish Autonomous Re-
gion). Turczaninowia 22(1): 122–131. DOI: 10.14258/
turczaninowia.22.1.11 [In Russian]
Friedrich S. 2002. Selected Ascomycota and Basidiomycota
from Cedynia Landscape Park (NW Poland). Polish Bo-
tanical Journal 47(2): 125–138.
Galanina O. 2005. The Polisto-Lovat’ bog system. Stapa
85: 247–254.
Geltman D.V. (Ed.). 2018. Red Data Book of the Leningrad
region. Objects of plant world. St. Petersburg: Marafon.
840 p. [In Russian]
Gierczyk B., Kujawa A., Szczepkowski A., Ślusarczyk T.,
Pachlewski T., Chachuła P., Domian G. 2019. Macro-
fungi of the Bieszczady Mountains. Acta Mycologica
54(2): 1124. DOI: 10.5586/am.1124
Gogoi G., Parkash V. 2015. A checklist of gilled mushrooms
(Basidiomycota: Agaricomycetes) with diversity analy-
sis in Hollongapar Gibbon Wildlife Sanctuary, Assam,
India. Journal of Threatened Taxa 7(15): 8272–8287.
DOI: 10.11609/jott.1770.7.15.8272-8287
Greslebin A.G., Rajchenberg M. 2003. Diversity of Cor-
ticiaceae sens. lat. in Patagonia, Southern Argentina.
New Zealand Journal of Botany 41(3): 437–446. DOI:
10.1080/0028825X.2003.9512861
Gulden G. 2010. Galerinas in cold climates. North American
Fungi 5(5): 127–157. DOI: 10.2509/naf2010.005.0058
Hagara L. 2001. Distribution of corticioid fungi in Slo-
vakia: Botryobasidium and related genera. Catathe-
lasma 1: 8–21.
Hansen L., Knudsen H. (Eds.). 1997. Nordic Macromycetes.
Vol. 3. Heterobasidioid, aphyllophoroid and gastromy-
cetoid basidiomycetes. Copenhagen: Nordsvamp. 444 p.
Hjortstam K. 1983. Studies in tropical Corticiaceae (Basidio-
mycetes) V. Specimens from East Africa collected by L.
Ryvarden. Mycotaxon 17: 555–572.
Hjortstam K., Larsson K.-H., Ryvarden L. 1988. The Corticia-
ceae of North Europe. Vol. 8: Phlebiella; Thanatephorus
– Ypsilonidium. Oslo: Fungiora. P. 1450–1631.
Holec J., Kříž M., Pouzar Z., Šandová M. 2015. Boubín-
ský prales virgin forest, a Central European refugium
of boreal-montane and old-growth forest fungi. Czech
Mycology 67(2): 157–226. DOI: 10.33585/cmy.67204
Hyvärinen E., Juslén A., Kemppainen E., Uddström A., Li-
ukko U.-M. (Eds.). 2019. Suomen lajien uhanalaisuus
– Punainen kirja 2019. The 2019 Red List of Finnish
Species. Helsinki: Ministry of the Environment & Finn-
ish Environment Institute. 704 p.
Ingold C.T. 1988. Patterns of basidiospore germination in
Platygloea effusa. Transactions of the British Myco-
logical Society 91(1): 161–162. DOI: 10.1016/S0007-
1536(88)80018-4
Iršėnaitė R., Adamonytė G., Daniele I., Kasparavičius J., Ku-
torga E., Stončius D. 2013. Macromycetes and myxo-
mycetes of Asveja Regional park (Lithuania). Botanica
Lithuanica 19(1): 8–21. DOI: 10.2478/botlit-2013-0002
Ivoilov A.V., Bolshakov S.Yu., Silaeva T.B. 2017. Study of
species diversity of macromycets. Saransk: Publisher of
the Mordovia State University. 160 p. [In Russian]
Jülich W. 1984. Die Nichtblätterpilze, Gallertpilze und
Bauchpilze. Aphyllophorales, Heterobasidiomycetes,
Gastromycetes. Kleine Kryptogamenora. Vol. 2b/1.
Basidiomyceten. 1. Jena: G. Fischer. 626 p.
Karasiński D., Kujawa A., Piątek M., Ronikier A.,
Wołkowycki M. 2009. Contribution to biodiversity as-
sessment of European primeval forests: new records of
rare fungi in the Białowieża Forest. Polish Botanical
Journal 54(1): 55–97.
Knudsen H., Vesterholt J. (Eds.). 2012. Funga Nordica.
Agaricoid, boletoid, clavarioid, cyphelloid and gastroid
genera. Copenhagen: Nordsvamp. 1083 p.
Kotkova V.M. 2014. Fungi of the Central-Forest State Nature Re-
serve (annotated list of species). Moscow. 94 p. [In Russian]
Kotkova V.M. 2020. New data on aphyllophoroid fungi (Ba-
sidiomycota) of the State Nature Reserve «Kurgalsky»
(Leningrad Region). Novosti Sistematiki Nizshikh Ras-
tenii 54(1): 78–86. [In Russian]
Kotkova V.M., Popov E.S. 2012. Aphyllophoroid fungi. Proceed-
ings of the Sebezhsky National Park 2: 61–91. [In Russian]
Kotkova V.M., Popov E.S. 2013. Aphyllophoraceous fungi of
Pskov Region. Novosti Sistematiki Nizshikh Rastenii 47:
87–121. DOI: 10.31111/nsnr/2013.47.87 [In Russian]
Kovalenko A.E., Kolmakov P.Yu., Morozova O.V., Popov E.S.
2003. Macromycetes of the Sebezhsky National Park.
Mikologiya i Fitopatologiya 37(5): 37–48. [In Russian]
Krieglsteiner G.J. 2000. Die Großpilze Baden-Württembergs.
Band 1: Allgemeiner Teil. Ständerpilze: Gallert-, Rinden-,
Stachel- und Porenpilze. Stuttgart: E. Ulmer. 629 p.
Kunttu P., Kulju M., Kotiranta H. 2015. Checklist of aphyl-
lophoroid fungi (Basidiomycota) of the Archipelago
Sea National Park, Southwest Finland. Check List
11(2): 1587. DOI: 10.15560/11.2.1587
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

Lacheva M., Radoukova T. 2014. Fungal diversity of Chivira
Protected Area, Mt Sredna Gora, Bulgaria. Internation-
al Journal of Biological Sciences 1(3): 1–17.
Langer E., Langer G., Striegel M., Riebesehl J., Ordynets
A. 2014. Fungal diversity of the Kellerwald-Edersee
National Park – indicator species of nature value and
conservation. Nova Hedwigia 99(1–2): 129–144. DOI:
10.1127/0029-5035/2014/0201
Langer G. 1994. Die Gattung Botryobasidium Donk (Corti-
ciaceae, Basidiomycetes). Bibliotheca Mycologica. Vol.
158. Berlin, Stuttgart: J. Cramer. 459 p.
Lisiewska M., Tortić M. 1990. Macrofungi in Forest Asso-
ciations of the Plitvička Jezera National Park (Croatia,
Yugoslavia). Acta Botanica Croatica 49: 81–91.
Lodge D.J., Ammirati J.F., O’Dell T.E., Mueller G.M.,
Huhndorf S.M., Wang C.-J., Stokland J.N., Schmit J.P.,
Ryvarden L., Leacock P.R., Mata M., Umaña L., Wu
Q., Czederpiltz D.L. 2004. Terrestrial and lignicolous
macrofungi. In: G.M. Mueller, G.F. Bills, M.S. Foster
(Eds.): Biodiversity of Fungi. Inventory and Monitor-
ing Methods. Burlington: Academic Press. P. 127–172.
DOI: 10.1016/B978-012509551-8/50011-8
Lüderitz M., Kamke M., Specht P., Ludwig E., Lehmann
H., Schubert H., Richter H., Richter U. 2016. Ergeb-
nisse des 4. und 5. Dünenpilzworkshops. Zeitschrift für
Mykologie 82(2): 355–448.
Maekawa N. 1990. Redinition of Botryobasidium prui-
natum (Corticiaceae, Aphyllophorales) and its relation-
ship to B. asperulum and B. laeve. Transactions of the
Mycological Society of Japan 31(4): 467–478.
Maekawa N. 1991. Seven species of the genus Botryobasi-
dium (Corticiaceae, Aphyllophorales) previously un-
reported from Japan. Transactions of the Mycological
Society of Japan 32(1): 125–133.
Malysheva E.F., Malysheva V.F., Justo A. 2016. Observations
on Pluteus (Pluteaceae) diversity in South Siberia, Russia:
morphological and molecular data. Mycological Progress
15(8): 861–882. DOI: 10.1007/s11557-016-1215-7
Morozova O.V., Popov E.S. 2013. New records of two spe-
cies of the genus Pseudobaeospora (Basidiomycota,
Agaricales) from Russia. Novosti Sistematiki Nizshikh
Rastenii 47: 127–134. [In Russian]
Noordeloos M.E., Kuyper Th.W., Vellinga E.C. (Eds.). 2001.
Flora Agaricina Neerlandica. Critical monographs on
families of agarics and boleti occurring in the Nether-
lands. Vol. 5. Agaricaceae. Lisse / Abingdon / Exton /
Tokyo: A. A. Balkema Publishers. 169 p.
Oberwinkler F. 1965. Primitive Basidiomyceten. Revision
einiger Formenkreise von Basidienpilzen mit plastisch-
er Basidie. Sydowia 19(1–3): 1–72.
Oberwinkler F., Bauer R., Bandoni R.J. 1990. Colacogloea:
a new genus in the auricularioid Heterobasidiomycetes.
Canadian Journal of Botany 68(12): 2531–2536. DOI:
10.1139/b90-318
Popov E.S., Kovalenko A.E., Gapienko O.S., Kolmakov
P.Yu., Melnik V.A., Morozova O.V., Kotkova V.M.,
Yurchenko E.O., Bondartseva M.A., Belomesyatseva
D.M., Shaporova Ya.A., Shabashova T.G., Zmitrovich
I.V., Shabunin D.A. 2013. Mycobiota of the Belarus-
Valday Lakeland. Moscow; St. Petersburg: Moscow:
KMK Scientic Press Ltd. 399 p. [In Russian]
Pradeep C.K., Justo A., Vrinda K.B., Shibu V.P. 2012. Two
new species of Pluteus (Pluteaceae, Agaricales) from
India and additional observations on Pluteus chrys-
aegis. Mycological Progress 11(4): 869–878. DOI:
10.1007/s11557-011-0801-y
Roberts P. 1999. Clavarioid Fungi from Korup National
Park, Cameroon. Kew Bulletin 54(3): 517–539. DOI:
10.2307/4110853
Sennikov A.N. 2005. Phytogeography of Northwest Rus-
sia (Saint-Petersburg, Pskov and Novgorod regions).
Transactions of KarRC RAS 7: 206–243. [In Russian]
Singer R. 1938. Notes sur quelques Basidiomycètes. IVe Sé-
rie. Revue de Mycologie 3(4): 187–199.
Spirin V., Malysheva V., Trichies G., Savchenko A., Põld-
maa K., Nordén J., Miettinen O., Larsson K.-H. 2018.
A preliminary overview of the corticioid Atractiello-
mycetes (Pucciniomycotina, Basidiomycetes). Fun-
gal Systematics and Evolution 2(1): 311–340. DOI:
10.3114/fuse.2018.02.09
Tejklová T. 2018. Houby bohdanečského lázeňského parku a
okolí (východní Čechy). Acta Musei Reginaehradecen-
sis. Series A: Scientiae Naturales 37: 19–46.
Tejklová T., Zíbarová L. 2018. A contribution to the knowl-
edge of lignicolous fungi of Podunajská nížina Lowland
(Slovakia). Catathelasma 19: 5–77.
Telleria M.T., Dueñas M., Melo I., Salcedo I., Cardoso J., Fernán-
dez-López J., Martín M.P. 2016. Corticioid fungi (Basid-
iomycota) from the Biosphere Reserve of Arganeraie,
Morocco: a preliminary survey. Nova Hedwigia 103(1–2):
193–210. DOI: 10.1127/nova_hedwigia/2016/0345
Vasilyeva L.N. 1973. Agaric pileated fungus (Order Agari-
cales) in the Primorsky Krai. Leningrad: Nauka. 331 p.
[In Russian]
Vašutová M., Dvořák D., Beran M. 2013. Rare macromycetes
from raised bogs in the Hrubý Jeseník Mts. (Czech Re-
public). Czech Mycology 65(1): 45–67. DOI: 10.33585/
cmy.65104
Vetkin Yu.E., Geltman D.V., Litvinova E.M., Konechnaya
G.Yu., Mishchenko A.L. (Eds.). 2015. Red Data Book
of the Novgorod region. St. Petersburg: Diton. 480 p.
[In Russian]
Walleyn R., Vandeven E. (Eds.). 2006. Standaardlijst van
Basidiomycota en Myxomycota van Vlaanderen en het
Brussels Gewest. Rapport INBO.R.2006.27. Brussel:
Instituut voor Natuur- en Bosonderzoek. 140 p.
Wojewoda W. 1977. Grzyby (Mycota). T. 8. Podstawczaki
(Basidiomycetes). Trzęsakowe (Tremellales). Usza-
kowe (Auriculariales). Czerwcogrzybowe (Septoba-
sidiales). Flora Polska. Rośliny zarodnikowe Polski
i ziem ościennych.Warszawa; Kraków: Państwowe
Wydawnictwo Naukowe. 336 p.
Zmitrovich I.V., Stolyarskaya M.V., Kalinovskaya N.I., Popov
E.S., Myasnikov A.G., Morozova O.V., Volobuev S.V.,
Bolshakov S.Yu., Svetasheva T.Yu., Bondartseva M.A.,
Kovalenko A.E. 2015. Macromycetes of the Nizhne-
Svirsky State Nature Reserve (annotated checklist). St.
Petersburg: Svoyo izdatelstvo. 185 p. [In Russian]
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024

НОВЫЕ ДЛЯ ПСКОВСКОЙ ОБЛАСТИ ВИДЫ БАЗИДИОМИЦЕТОВ
ИЗ ПОЛИСТОВСКОГО ЗАПОВЕДНИКА (РОССИЯ)
Л. Б. Калинина1,*, С. Ю. Большаков1, Т. М. Бульонкова2
1Ботанический институт им. В.Л. Комарова РАН, Россия
2Институт систем информатики им. А.П. Ершова СО РАН, Россия
*e-mail: lkalinina@binran.ru
До начала настоящих исследований в Псковской области было известно 918 видов базидиомице-
тов, включая 512 таксона, зарегистрированных в национальном парке «Себежский». Инвентариза-
ция грибов является важной частью оценки биоразнообразия. Подобные исследования не теряют
своей актуальности в связи с постоянно возрастающим объемом знаний об этой обширной группе
организмов, обусловленных как новыми находками, так и успехами молекулярно-генетических ис-
следований. В 2019 г. мы исследовали грибы различных растительных сообществ государственно-
го природного заповедника «Полистовский», а также его охранной зоны на девяти маршрутах. В
результате было выявлено 74 новых для Псковской области вида. Шесть из них (Galerina hybrida,
Gymnopus erythropus, Lepiota boudieri, Pluteus velutinus, Rugosomyces obscurissimus и Simocybe haus-
tellaris) оказались новыми для Северо-запада Европейской России и четыре (Achroomyces effusus,
Botryobasidium stigmatisporum, Galerina caulocystidiata, and Pseudobaeospora celluloderma) – новыми
для России. Виды, новые для Северо-запада России, снабжены краткими примечаниями. Для видов,
впервые найденных в России, приведены описания изученных образцов, рисунки микроструктур,
а также обсуждается их распространение, известные местообитания, близкие виды, и современ-
ное состояние данных. Также отмечены два вида, заслуживающие внимания. Это Hemistropahria
albocrenulata, находящийся под охраной в Финляндии, Ленинградской и Новгородской областях, и
Helicogloea compressa, находка которого является второй на территории России (первое упоминание
относится к территории г. Санкт-Петербург). Несмотря на то, что новые данные существенно рас-
ширяют знания о базидиомицетах государственного природного заповедника «Полистовский», они
недостаточны для полноценного анализа структуры микобиоты.
Ключевые слова: Achroomyces effusus, Botryobasidium stigmatisporum, Galerina caulocystidiata, Pseudo-
baeospora celluloderma, Полистово-Ловатская болотная система, Северо-запад Европейской России
Nature Conservation Research. Заповедная наука 2020. 5(3) https://dx.doi.org/10.24189/ncr.2020.024