SACCARDOELLA

Saccardoella transylvanica (Rehm) Berl. – Chukotka peninsula. On dead stems of Salix sp.

SACCOBOLUS

Saccobolus obscurus (Cooke) W. Phillips – Arkhangelsk area.: Kolguev Is. On dung of animals. – Al, Ca.

Saccobolus quadrisporus Massee et E.S. Salmon – Arkhangelsk area.: Kolguev Is. On dung of polar goose. – Sp, Gr.

SACCOTHECIUM

Saccothecium saepincola (Fr.: Fr.) Fr. [ = Sphaerulina. Intermixta Sacc.] – Yakutia area. – Ic.

SAGEDIOPSIS

Sagediopsis aspiciliae… – Putorana Plateau: Talnakh town.

Sagediopsis campsteriana (Linds.) D. Hawksw. & R. Sant. – New Siberian Islands. Bennett Is. On Pertusaria coriacea (?) (th.). On Pertusaria sp. (th.) – Taimyr Peninsula. North of Pyasino Lake. On Ochrolechia cf. androgyna (th.), Sclerococcum sphaerale (Ach.) Fr. – Novaya Zemlya Archipelago (Keissler 1928: 5) , on Solorina bispora and Lecanora rupicola (“Lecanora glaucoma”). Certainly. Incorrect determination, but material not seen.

SAPROLEGNIA

Saprolegnia ferax (Gruith.) Thuret – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts, Taimyr Peninsula: Levinson – Lessing’s lake. In water specimens.

Saprolegnia hypogyna (Pringsh. ) De Bary – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Laplandskii reservation. In water specimens.

SCHIZOCHYTRIUM

Schizochytrium sp. – Chukotka peninsula: Wrangel’ Is. In water specimens.

SCHIZONELLA

Schizonella elynae (Blytt) Liro. – Chukotka peninsula. On leaves of Kobresia myosuroides.

Schizonella melanogramma (DC.) J. SchrØ t. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Tyumen area, Yamal Peninsula , Chukotka peninsula. On leaves of Carex bigelowii, C. arctisibirica, C. concolor. – Fl, Ic, Sp, Ca.

SCLEROPLEELLA

Scleropleella hyperborea (Fuckel) L. Holm [ = Leptosphaeria hyperborea(Fuckel) Barr, L. hyperborea (Fuckel) Berl. et Vogl Pleospora hyperborea Fuckel, Didymosphaeria cassiopes Rostr Leptosphaerulina hyperborea(Fuckel) Barr] – Polar Ural , Taimyr Peninsula, Yakutia area, Chukotka peninsula: Wrangel’ Is. – Fl, Sp, Gr, Al, Ca.

SCLEROSTAGONOSPORA

Sclerostagonospora heraclei (Sacc.) Hö hn.[ = Hendersonia heraclei Sacc.] – Polar Ural. On dead stems of Angelica sylvestris.

SCLEROTINIA

Sclerotinia sclerotiorum (Lib.)de Bary [ = S. libertiana Fuckel] – Novaya Zemlya Archipelago. On dead stems of herbs.

SCLEROTIUM

Sclerotium fulvum Fr. – Novaya Zemlya Archipelago. On living leaves of Poa alpigena x P. alpina. – Gr.

Sclerotium rhizodes Auersw. – Polar Ural. On living leaves and stems of Calamagrostis langsdorffii, C. lapponica. – Ic, Al.

SCUTELLINIA

Scutellinia heterosculpturata Kullman et Raitviir – Tyumen area, Yamal Peninsula. On stems of Carex.

Scutellinia scutellata (St. – Amans: Fr.) Lambotte [ = Humaria scutellata (St. – Amans: Fr.) Fuckel ] – Polar Ural, Taimyr Peninsula, Chukotka peninsula. On wood Duschekia fruticosa, herb debris and soil. – Fl Gr, Al.

Scutellinia subhirtella Sveré k – Tyumen area, Yamal Peninsula , Taimyr Peninsula. On soil. – Gr.

Scutellinia trechispora (Berk. et Broome) Lambotte – Taimyr Peninsula. On soil. – Gr, Al.

Scutellinia umbrorum (Fr.)Lambotte [ = Lachnea umbrorum (Fr.) Gillet.] – Novosibirskiye Islands (New Siberian Islands)., Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Yakutia area, Chukotka peninsula. On soil.

SCUTULA

Scutula epicladonia (Nyl.) Sacc. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). Khibiny Mts. On Cladina rangiferina (base of podetia) – Taimyr Peninsula. Mouth of Pyasina River: Farvaternyy Is. On Cladina rangiferina (th. – base of podetia); Syrutaturku Lake. On moribund blackened cups of Cladonia pyxidata.

Scutula krempelhuberi Körb. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). Pyukhyakuru canyon. On Solorina saccata (th.), (with Karsteniomyces sp. ).

Scutula miliaris (Wallr.) Trevis. – All specimens , on Peltigera spp. (th.). Chukotka peninsula. Cape Krause at Lavrentiia Bay; Left bank of Taniurer River by Bezymiannoe Lake.

SCYTINOSTROMA

Scytinostroma odoratum (Fr.) Donk – Polar Ural. On coarse wood debris of coniferous.

Scytinostroma praestans (Jacks.) Donk – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. On coarse wood debris of coniferous.

SEIMATOSPORIUM

Seimatosporium salicinum (Corda) Nag Raj [ = Hendersonia ribis – alpini Fautrey] – Yakutia area. On dead stems of Ribes triste.

SELENOPHOMA

Selenophoma alpina Petr. – Taimyr Peninsula. On dead stems of Potentilla stipularis.

Selenophoma drabae (Fuckel) Petrak.[ = Phoma drabae Fuckel, Rhabdospora drabae (Fuckel)Berl Rh. groenlandica Lind, Septoria drabae Rostr S. nivalis Rostr S. nebulosa Rostr ] – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land), Novaya Zemlya Archipelago , Taimyr Peninsula, Yakutia area. On litter of Arctagrostis latifolia, Arctophila fulva, Poa pratensis, Calamagrostis holmii, Carex stans, C. ustulata, Cardaminopsis alpina, Cerastium alpinum, Cochlearia arctica, Descurainia sophioides, Draba alpina, Draba alpina, D. hirta, Dryas punctata, Papaver lapponicum, Poa alpina, P. arctica, Tephroseris palustrisarcticum, Tripleurospermum hookeri. – Fl, Ic, Sp, Gr, Al.

SEPTONEMA

Septonema arcticum Allesch. – Yakutia area. On dead peduncles of Cassiope tetragona.

Septonema pseudobinum Hol. – Jech. – Polar Ural. On dead trunk of Picea obovata.

SEPTORIA

Septoria alnicola Massal. – Yakutia area. On leaves of Duschekia fruticosa.

Septoria alpicola Sacc. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On leaves of Epilobium sp.

Septoria arctica Berk. et Curtis – Novaya Zemlya Archipelago , Chukotka peninsula. On leaves of Dupontia fisheri Calamagrostis Sp. – Al.

Septoria armoraciae Sacc. – Yakutia area. On litter of Cochlearia arctica.

Septoria arnicae Fuckel – Taimyr Peninsula. On leaves of Arnica iljinii.

Septoria ascophylli Melnik et Ju. Petrov – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On leaves of Ascophyllum nodosum.

Septoria blennorioides (P. Karst.) Berl. et Vogl.  – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Arkhangelsk area: Vaigach Is. On leaves of Salix myrsinites. – Fl.

Septoria caricis Pass. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural. On leaves of Carex subspathacea Carex globularis. – Ic.

Septoria cerastii Roberge ex Desm. – Yakutia area. On leaves of Cerastium maximum.

Septoria elymi Ellis et Everh. – Yakutia area. On leaves of Hordeum roshevitzii.

Septoria eriophori Oudem. – Novaya Zemlya Archipelago , Arkhangelsk area: Kolguev Is., Polar Ural, Taimyr Peninsula. On leaves of Eriophorum polystachion, E. scheuchzeri, E. vaginatum. – Sp, Gr, Al.

Septoria graminum Desm. – Polar Ural , Taimyr Peninsula. On leaves of Avenella flexuosa, Poa pratensis; on dead stems of Trisetum sibiricum, Koeleria asiatica. – Fl, Ic, Gr, Al.

Septoria linnaeae (Ehrenb.: Fr.) Sacc.  – Polar Ural. On leaves of Linnaea borealis.

Septoria luzulae J. Schrö t. – Novaya Zemlya Archipelago , Taimyr Peninsula, Yakutia area. On leaves of Luzula confusa.

Septoria lychnidis Desm. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On leaves of "Melandrium diurnum". – Sp.

Septoria minuta J. Schrö t. – Taimyr Peninsula. On leaves of Luzula confusa. On stems of Luzula tundricola. –.

Septoria passerinii Sacc. [ = S. hordei Jacz.] – Yakutia area. On leaves of Hordeum sibiricum. – Al, Ca.

Septoria polemonii Thü m. – Polar Ural, Taimyr Peninsula. On leaves of Polemonium acutiflorum. On living leaves of Polemonium boreale. – Fl.

Septoria polygonorum Desm. [ = Septoria polygonina Thü m.] – Polar Ural, Taimyr Peninsula. On leaves of Bistorta major, B. vivipara. – Gr, Al, Ca.

Septoria potentilliae Thü m. – Taimyr Peninsula, Yakutia area. On leaves of Potentilla stipularis. – Gr.

Septoria punctoidea P. Karst. – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land), Novaya Zemlya Archipelago , Taimyr Peninsula. On leaves of Luzula confusa, , on stems of Carex stans. – Sp, Gr.

Septoria rumicis Trail – Taimyr Peninsula. On leaves of Rumex arcticus. – Fl.

Septoria sp. – Polar Ural. On litter and leafstalks of Dryas octopetala.

Septoria stellariae Roberge et Desm.[ = S. stellariae Westend.] ("Alsine verna") – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Arkhangelsk area: Vaigach Is., Taimyr Peninsula. On leaves of Stellaria humifusa Stellaria graminea, Cerastium alpinum Stellaria peduncularis. – Sp, Gr, Ca.

Septoria taraxaci Holló s – Taimyr Peninsula. On leaves of Taraxacum cerathophorum.

Septoria trientalis (Lasch) Sacc. – Polar Ural. On leaves of Trientalis europaea. – Fl.

Septoria trollii Sacc. et Westend. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On Trollius europaeus.

Septoria veronicicola Desm. Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On Veronica alpina.

Septoria virgaureae (Lib.) Desm. – Polar Ural. On leaves of Solidago virgaurea.

Septoria viscariae Rostr. – Taimyr Peninsula. On dead stems of Lychnis sibirica. – Gr.

SEPTORIELLA

Septoriella junci (Desm.) Sutt. On [ = Rhabdospora junci (Desm.) Allesch Septoria junci Desm.] – Yakutia area. On dead stems of Poa alpigena.

SEPTOSPERMA

Septosperma rhizophydii Wiffen – Chukotka peninsula: Wrangel’ Is. In cells of chytridiomycetes.

SPADICOIDES

Spadicoides atra (Corda) S. Hughes – Taimyr Peninsula. On coarse wood debris.

SPAERELLOTHECIUM

Spaerellothecium abditum Triebel – Chukotka peninsula. Iskaten pass by the road Egvekinot-Iul’tin. On Lecidea s. str. sp. (th.), (with Muellerella pygmaea var. pygmaea).

Spaerellothecium contextum Triebel – Both specimens , on Protoparmelia badia (ap.). Chukotka peninsula. Inchoun settlement – 174-177 km of the road Egvekinot-Iul’tin (by the bridge over Amguema River).

SPATHULARIA

Spathularia flava (Pers.: Fr.) Ces. et De Not.[ = S. flavida Pers.] – Polar Ural. On soil.

SPHACELOMA

Sphaceloma necator(Ellis et Everh.) Jenkins et Shear [ = Gloeosporium venetum Speg.] – Yakutia area. On litter of Rubus chamaemorus.

SPHAERELLOPSIS

Sphaerellopsis filum (Biv.: Fr.) Sutt. On [ = Darluca filum (Biv.) Cast.]. – Arkhangelsk area: Kolguev Is. On Puccinia triseti, Trisetum spicatum. – Al.

SPHAERELLOTHECIUM

Sphaerellothecium araneosum (Rehm ex Arnold) Zopf. – Syn. Echinothecium glabrum M. S. Christ., Alstrup & D. Hawksw. – Chukotka peninsula. Bezymyannoe Lake. On Stereocaulon alpinum (phyllocladia) – Gilmimliveem River. On Stereocaulon alpinum (phyllocladia);. In the vicinities of. Inchoun settlement. On Stereocaulon alpinum (phyllocladia). On S. vesuvianum (th.); Iskaten Pass. On Stereocaulon capitellatum (soralia!). On S. depressum (phyllocladia). On S. glareosum (th.); Vankarem lowland. On Stereocaulon alpinum (phyllocladia) – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Cape Sedov. On Ochrolechia frigida (th.). On Ochrolechia sp. (th.) – Scott-Keltie Is. On Ochrolechia sp. (th.) – New Siberian Islands. Zhokhov Is. On O. frigida (th.) – Putorana Plateau. N Ayan Lake. On Stereocaulon depressum (th.: phyllocladia). On S. rivulorum (th.); S Ayan Lake. On Ochrolechia upsaliensis (ap., th.). On Stereocaulon paschale (phyllocladia); Kapchuk Lake. On muscicolours Ochrolechia sp. (th.) – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake. On Arctoparmelia separata (th.). On Arctoparmelia sp. , on Ochrolechia frigida (th.), (with Dactylospora deminuta). On O. frigida (th.), n Ochrolechia sp. (th.); N of Pyasino Lake. On Cladonia pocillum and Ochrolechia frigida thalli – Mouth of Ragozinka River. On O. cf. androgyna (th.) , on drift-wood; Syrutaturku Lake. On primary squamules of Cladonia pocillum. On Nephroma expallidum (th., partly , on bleached parts of th.) – Al.

Sphaerellothecium minutum Hafellner – Both specimens , on Sphaerophorus fragilis (th.). Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Scott Keltie Is. – Putorana Plateau: Kapchuk Lake. On Sphaerophorus globosus (th.) – Taimyr Peninsula. N of Pyasino Lake. On Sphaerophorus fragilis and S. globosus (thalli) common – Mouth of Pyasina River, Cape Vostochnyi.

SPHAEROPSIS

Sphaeropsis herbarum Cooke et Massee – Yakutia area. On dead Tephroseris palustris, Tripleurospermum hookeri.

SPHAEROTHECA

Sphaerotheca alpina Blumer [ = S. fuligenea f. saxifragum Jacz.] – Taimyr Peninsula, Yakutia area, Chukotka peninsula. – Al, Ca.

Sphaerotheca aphanis (Wallr.) U. Braun [ = S. alchemillae (Grev.) Junell, S. macularis (Fr.) Lind ] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Taimyr Peninsula, Yakutia area, Chukotka peninsula , Magadan area, including Kolyma upland. – Ic, Al, Ca.

Sphaerotheca astragali Junell [ = S. fuligenea f. astragali Jacz.] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Taimyr Peninsula, Chukotka peninsula , Magadan area, including Kolyma upland. – Fl, Ic, Al, Ca.

Sphaerotheca drabae Juel [ = S. fuliginea f. drabae Jacz S. fuligenea f. parryae Jacz.] – Taimyr Peninsula, Yakutia area. – Ic, Gr, Al, Ca.

Sphaerotheca ferruginea (Schlecht.: Fr.) Junell [ = S. macularis (Wallr.: Fr.) Lind sensu Jacz.] – Magadan area, including Kolyma upland. – Al, Ca.

Sphaerotheca fusca (Fr.)Blumer [ = S. erigerontis=canadensis (Lé v.) Junell, S. fuligenea f. taraxaci Jacz Sphaerotheca xanthii (Cast.) Junell, Sphaerotheca melampyri Junell] – Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula , Magadan area, including Kolyma upland. – Fl, Sp, Gr, Al, Ca.

Sphaerotheca polemonii Junell [ = S. fuliginea f. polemonii Jacz.] – Chukotka peninsula.

Sphaerotheca thalictri Junell ["S. delphinii (P. Karst.) Blumer"] – Polar Ural – Fl.

Sphaerotheca volkartii Blumer – Polar Ural. – Fl.

SPHAERULINA

Sphaerulina diapensiae Rostr. – Yakutia area. – Ic.

Sphaerulina microthyrioides Rehm – Taimyr Peninsula.

Sphaerulina polygonorum Tomilin – Taimyr Peninsula.

SPORORMIELLA

Sporormiella lageniformis (Fuckel) Ahmed et Cain [ = Sporormia lageniformis Fuckel Chukotka peninsula. – Ic.

Sporormiella vexans (Auersw.) Ahmed et Cain [ = Sporormia vexans Auersw.] – Chukotka peninsula.

STAGONOSPORA

Stagonospora agrostidis Syd. – Taimyr Peninsula, Yakutia area. On litter and stems of Poa sp., Arctagrostis arundinacea, Calamagrostis holmii, Poa alpigena. – Al.

Stagonospora artemisiae Rostr. – Yakutia area. On dead stems of Descurainia sophioides.

Stagonospora caricis (Oudem.) Sacc. [ = Hendersonia caricis Oudem.] – Polar Ural, Taimyr Peninsula, Yakutia area. On litter of Carex globularis, C. ensifolia, C. stans. – Ic, Ca.

Stagonospora culmicola (Sacc.) E. Castell. et Germano [ = Septoria simplex (J. Schrö t.) Sacc. Hendersonia simplex J. Schrö t H. culmicola Sacc.] – Taimyr Peninsula, Yakutia area. On dead stems of Poa glauca Alopecurus alpinus. – Sp, Al.

Stagonospora fuckelii (Sacc.) Jö rst. – Taimyr Peninsula. On living leaves of Petasites frigidus.

Stagonospora graminum Sacc. et Scalia [ = S. graminicola Sacc.] – Taimyr Peninsula. On dead stems of Trisetum sibiricum. – Al.

Stagonospora luzulae Sacc. [ =Hendersonia luzulae Westend.] – Taimyr Peninsula. On dead stems of Luzula tundricola.

Stagonospora macropus (Berk. et Broome) Sacc. – Yakutia area. On litter of Carex stans.

Stagonospora nodorum (Berk.) Castell. et Germano [ = Septoria nodorum (Berk.) Berk. et Broome] – Yakutia area. On leaves of Arctophila fulva. – Al.

Stagonospora senecionis Sacc. – Yakutia area. On dead stems of Tephroseris palustris.

Stagonospora smolandica Elliasson – Taimyr Peninsula. On dead stems of Arctagrostis arundinacea.

Stagonospora strictae Ellis et Everh. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On dead stems of Carex aquatilis. – Al, Ca.

Stagonospora trifolii Fautrey – Yakutia area. On dead stems of Astragalus alpinus.

STAMNARIA

Stamnaria persoonii (Pers.)Fuckel [ = S. quseti(Hofmm.) Sacc.] – Taimyr Peninsula. On living stems of Equisetum variegatum.

STEMONITIS

Stemonitis axifera (Bull.) T. Macbr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Taimyr Peninsula, Chukotka peninsula. On coarse wood debris, and bark of living trees, litter. – Al.

Stemonitis fusca Roth – Polar Ural, Chukotka peninsula. On coarse wood debris, litter. – Is, Al, Gr.

Stemonitis hyperopta Meylan – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On coarse wood debris.

Stemonitis smithii T. Macbr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Taimyr Peninsula. On coarse wood debris. – Al.

Stemonitis virginiensis Rex – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On coarse wood debris.

STEMONITOPSIS

Stemonitopsis subcaespitosa (Peck) Nann. – Brem. – Taimyr Peninsula. On coarse wood debris.

STIGMIDIUM

Stigmidium catapyrenii Roux & Triebel – Putorana Plateau: Kapchuk Lake. On Catapyrenium cinereum (th.).

Stigmidium cerinae Cl. Roux & Triebel – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Caloplaca cerina (ap.).

Stigmidium cf. pseudopeltideae Cl. Roux & Triebel – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Peltigera sp. (th.).

Stigmidium cf. pseudopeltideae Cl. Roux & Triebel – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake, on Peltigera sp. (th.).

Stigmidium cfr. lecidellae Triebel, Roux & Le Ceur – Putorana Plateau: Kapchuk Lake. On Lecidella euphorea (th.).

Stigmidium conspurcans (Th. Fr.) Triebel & R. Sant. – All specimens , on Psora rubiformis (th.) – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Cape Sedov – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). Khibiny Mts. – Putorana Plateau. S Ayan Lake; Kapchuk Lake. – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing – Novaya Zemlya Archipelago , collected by B. Lynge and published by Keissler (1928: 3), as Pharcidia conspurcans. The host was. Incorrectly reported as Psora (”Lecidea”) decipiens but is Psora rubiformis.

Stigmidium frigidum (Sacc.) Alstrup & D. Hawksw. – All specimens , on Thamnolia vermicularis s.lat. (th.) – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Cape Sedov. On T. v. v. subuliformis. On T. v. v. subuliformis. On T. v. v. subuliformis. On T. v. v. vermicularis. On T. v. v. Vermicularis – Tikhaya Bay. On T. v. v. subuliformis (th.) – New Siberian Islands. Bennett Is. On T. v. v. subuliformis (th) – Severnaya Zemlya Archipelago. Sedov Archipelago: 79: 25 N, 91: 40 E. On T. v. v. vermicularis (th.) – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake. On T. v. v. subuliformis (th.). On T. v. v. subuliformis (th.), (filed under “Skyttea” sp. ); on T. v. v. vermicularis (th.). On T. v. v. vermicularis (th.); Syrutaturku Lake. On T. v. v. subuliformis – Vize Is. On T. v. v. subuliformis (th.).

Stigmidium gyrophorarum (Arnold) D. Hawksw. – Syn. Endococcus gyrophorarum (Arnold) J. C. David & D. Hawksw. – Both specimens , on Umbilicaria decussata (th.). Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake.

Stigmidium peltideae (Vain.) R. Sant. – Chukotka peninsula. Uelen settlement (?). On Peltigera sp. (th.) – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Cape Sedov. On Peltigera aphthosa (th.). On P. aphthosa (th.); Northbrook Is., Cape Flora. On P. cf. canina (th.). On P. cf. rufescens (th.). On Peltigera sp. (th.), identification not certain. – Scott Keltie Is. On P. venosa (th.) – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake. On P. aphthosa (th. Incl. cephalodia). On P. cf. rufescens (th.); N of Pyasino Lake. On Peltigera leucophlebia (th.) – Mouth of Pyasina River: Cape Vostochnyi. On Peltigera sp. (th.) (filed under Arthonia peltigerina).

Stigmidium rivulorum Syn. Pharcidia rivulorum (Karnst.) Sacc. – Putorana Plateau: Kapchuk Lake. On Verrucaria sp. (th.).

Stigmidium schaereri (A. Massal.) Trevis. s. str. – Chukotka peninsula. On Dacampia hookeri (th.) – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Dacampia hookeri (th.), (filed under Dacampia hookeri).

Stigmidium solorinarium (Vain.) D. Hawksw. – Chukotka peninsula. Cape Krause at Lavrentiia Bay. On Solorina sp. (th.) –. Inchoun settlement. On Solorina sp. (th.), – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). Alakurtti region. On Solorina cf. saccata (th.) – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Solorina spongiosa (th.).

STOMIOPELTIS

Stomiopeltis cassiopes L. Holm – Yakutia area.

Stomiopeltis dryadis (Rehm) L. Holm – Polar Ural.

STRICKERIA

Strickeria anceps (Sacc.) Cooke [= S. anceps Lar.N. Vassiljeva] – Chukotka peninsula.

Strickeria megastega(Ellis et Everh.) O. Kuntze [ = Teichospora megastega Ellis et Everh.] – Chukotka peninsula.

Stropharia alpina (M. Lange) M. Lange – Novosibirskiye Islands (New Siberian Islands)., Taimyr Peninsula: Levinson –Lessing’s lake. – Gr.

STROPHARIA

Stropharia semiglobata (Batsch: Fr.) Qué l. – Polar Ural. – Sp.

SUILLUS

Suillus acidus (Peck) Sing. – Koryak upland: Kamchatka, Krest bay.

Suillus aeruginascens (0pat.) Snell – Polar Ural, Tyumen area: Yamal Peninsula.

Suillus americanus (Peck) Snell – Chukotka peninsula.

Suillus clintonianus (Peck) Kuntze – Polar Ural.

Suillus grevillei (Klotzsch: Fr.) Sing. – Yakutia area.

Suillus placidus (Bonorden) Sing. – Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Suillus plorans (Roll.) Sing. – Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Suillus sibiricus (Sing.) Sing. – Chukotka peninsula.

Suillus subluteus (Peck) Snell – Chukotka peninsula , Koryak upland : Kamchatka, Korf’s bay.

SYDOWIELLA

Sydowiella dryadis Lar.N. Vassilyeva var. macrospora Nograsek – Polar Ural. On dead stems of Dryas octopetala.

Sydowiella fenestrans (Duby) Petr. [ = Didymosphaeria fenestrans (Duby) G. Winter] – Polar Ural. On dead stems of Chamerion angustifolium – Chukotka peninsula: Severo – Evensk. – Gr, Al.

SYMPLECTROMYCES

Symplectromyces vulgaris (Thaxt.) Thaxt – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga.

SYNCHYTRIUM

Synchytrium groenlandicum AllesCH et Henn – Novaya Zemlya Archipelago. On Saxifraga rivularis – Ic, Fl, Sp, Gr.

Synchytrium zygogonii (Dang.) Karling [= Micromyces zygogonii Dang.] – Polar Ural. In cells of Zygonema sp.

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