LABOULBENIA

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

Laboulbenia hastiana Hulden – Arkhangelsk area.

Laboulbenia vulgaris Peyr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Arkhangelsk area , Yakutia area.

LACCARIA

Laccaria laccata (Scop.: Fr.) Berk. et Br. [ = L. tetraspora Sing L. ohiensis (Mont.) Sing. ] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Tyumen area: Yamal Peninsula , Taimyr Peninsula: Levinson – Lessing’s lake, Yakutia area. – Sp.

Laccaria pumila Fayod [ = L. altaica Sing L. tortilis (Bolton) Cooke sensu M.Lange, 1955 ] – Novaya Zemlya Archipelago , Novosibirskiye Islands (New Siberian Islands)., Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Arkhangelsk area , Polar Ural, Sob’ River, Taimyr Peninsula, Yakutia area, Chukotka peninsula: Wrangel’ Is. – Gr, Sp, Fl Al.

Laccaria purpureobadia Reid – Taimyr Peninsula: Levinson – Lessing’s lake. – Nr.

LACHNELLULA

Lachnellula laricis (Cooke) Dharne – Magadan area, including Kolyma upland. On bark of dead twigs of Larix Sp.

Lachnellula suecica (De Bary ex Fuckel) Nannf. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On dead bark of coniferous. – Ic.

LACHNUM

Lachnum callimorphum P. Karst. [ = Dasyscyphus callimorphus (P. Karst.) Sacc.] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On dry stems of Carex vaginata.

Lachnum crystallophorum Nograsek et Matzer – Polar Ural. On reverse side of dead leaves of Dryas octopetala.

Lachnum tenuissimum (Qué l.) Raitviir – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On dry stems of grasses.

Lachnum virgineum (Batsch: Fr.) P. Karst. [= Dasyscyphus virgineus (Batsch) Gray – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains) Tyumen area. On decay wood. – Al.

LACTARIUS

Lactarius alpinus Peck – Tyumen area, Taimyr Peninsula, Yakutia area. – Al.

Lactarius dryadophilus Kü hner – Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula. – Sp, Fl, Ca, Gr.

Lactarius fuliginosus (Fr.: Fr.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural.

Lactarius glyciosmus (Fr.: Fr.) Fr.b – Polar Ural, Tyumen area, Taimyr Peninsula, Chukotka peninsula. – Sp, Fl, Al, Gr.

Lactarius helvus (Fr.) Fr. – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. – Fl.

Lactarius lacunarum Romagn. ex Hora – Arkhangelsk area , Polar Ural, Tyumen area, Taimyr Peninsula, Yakutia area.

Lactarius lanceolatus Miller et Laursen – Polar Ural, Taimyr Peninsula: Levinson – Lessing’s lake, Yakutia area. – Sp, Al.

Lactarius mammosus (Fr. ex Weinm.) Fr. – Polar Ural. – Fl.

Lactarius nanus J.Favre – Arkhangelsk area , Taimyr Peninsula, Yakutia area, Chukotka peninsula: Wrangel’ Is. – Sp.

Lactarius porninsis Roll. – Polar Ural, Koryak upland: Kamchatka, Korf’s bay.

Lactarius pseudouvidus Kü hner – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula. – Fl, Sp.

Lactarius pubescens (Schrad.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Arkhangelsk area , Polar Ural, Tyumen area: Yamal Peninsula , Taimyr Peninsula, Chukotka peninsula. – Fl, Al, Gr.

Lactarius repraesentaneus Britzelm. – Polar Ural, Tyumen area: Yamal Peninsula , Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay. – Al, Gr.

Lactarius rufus (Scop.: Fr.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Tyumen area , Yamal Peninsula , Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Lactarius salicis-herbaceae Kü hner – Taimyr Peninsula: Levinson – Lessing’s lake, Yakutia area. – Fl.

Lactarius salicis-reticulatae Kü hner [ = L. aspideoides Burl.] – Taimyr Peninsula: Levinson – Lessing’s lake, Yakutia area. – Sp, Fl, Fl Ca, Gr.

Lactarius scoticus Berk. et Broome – Koryak upland: Kamchatka, Korf’s bay. – Fl.

Lactarius subcircellatus Kü hner – Polar Ural, Yakutia area. – Fl.

Lactarius torminosulus Knudsen et Borgen – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Arkhangelsk area , Polar Ural, Taimyr Peninsula, Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay. – Fl.

Lactarius torminosus (Schaeff.: Fr.) Pers. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Tyumen area: Yamal Peninsula , Chukotka peninsula. – Fl, Gr.

Lactarius trivialis (Fr.: Fr.) Fr. – Polar Ural, Tyumen area: Yamal Peninsula , Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Lactarius uvidus (Fr.: Fr.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Tyumen area: Yamal Peninsula , Chukotka peninsula.

Lactarius vietus (Fr.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Chukotka peninsula.

LAETINAEVIA

Laetinaevia arctica (Allesch.) Nannf. [ = Orbilia arctica Allesch.] – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Arkhangelsk area.: Kolguev Is. On litter of Potentilla alpestre, Alchemilla alpina, Sibbaldia procumbens. – Ic, Gr, Ca.

Laetinaevia erythrostigma (Rehm.) Nannf. ex B. Hein [ = L. erytrostigmoides Nannf Helotiella erythrostigma (Rehm)Sacc.] – Novaya Zemlya Archipelago. On litter of Cerastium alpinum. – Sp, Gr, Ic.

Laetinaevia luzulina (P. Karst.) Nannf. – Novaya Zemlya Archipelago ; Yakutia area. On leaves of Luzula confusa.

Laetinaevia minutulata (Sacc. et Broome) Nannf. – Yakutia area. On peduncle of Papaver lapponicum.

Laetinaevia stellariae (Rostr.) Lind [ = Naevia stellariae Lind] – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land), Novaya Zemlya Archipelago , Taimyr Peninsula: Cheluskin promontory, Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains):Pechenga, Taimyr Peninsula. On litter of Stellaria longipes, S. graminea, S. palustris, S. ciliatosepala. – Sp, Gr.

LAMPRODERMA

Lamproderma arcyrioides (Sommerf.) Rost. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Chukotka peninsula. On leaf litter, litter of grasses, and mosses. – Is, Gr.

Lamproderma carestiae (Ces. et de Not.) Meylan – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On litter of grasses.

Lamproderma fuscatum Meylan – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On litter of grasses.

Lamproderma sauteri Rost. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Taimyr Peninsula. On litter of grasses. – Is, Gr.

LAMPROSPORA

Lamprospora crec`hqueraultii (Crouan) Boud. – Polar Ural. – Fl Gr.

LASIOBELONIUM

Lasiobelonium belanense (Svr¹ ek) Raitviir – Taimyr Peninsula. On decay wood and bark.

LASIOBOLUS

Lasiobolus ciliatus (Fr.) Boud. – Taimyr Peninsula. On dung of horse.

LASIOSPHAERIOPSIS

Lasiosphaeriopsis stereocaulicola (Linds.) O. E. Erikss. & R. Sant. – Chukotka peninsula. Lower course of Chegitun River, at Vetgyvaam River mouth. On Stereocaulon arenarium; Iskaten Pass. On Stereocaulon depressum (stem). On Stereocaulon sp., ; Lavrentiya Bay. On Stereocaulon condensatum; Penkignei Bay, at Pestsovaya River mouth. On Stereocaulon rivulorum; Provideniya Bay. On Stereocaulon rivulorum (phyllocladia); Vankarem lowland. On Stereocaulon arenarium – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Tikhaya Bay. On Stereocaulon alpinum – Cape Sedov. On S. cf. groenlandicum (th.). On S. rivulorum (th.) – Scott Keltie Is. On S. rivulorum (th.) (with Scutula stereocaulorum) (with Scutula stereocaulorum) – New Siberian Islands. Zhokhov Is. On Stereocaulon alpinum (th.). On S. rivulorum (th.). On Stereocaulon sp. (th.) – Putorana Plateau. N Ayan Lake. On Stereocaulon paschale; S Ayan Lake. On Stereocaulon cf. glareosum; Kapchuk Lake. On Stereocaulon depressum (th.), (with Scutula stereocaulorum); Sobache Lake. On Stereocaulon alpinum – Severnaya Zemlya Archipelago. Bolshevik Is. Baranov Peninsula. On Stereocaulon alpinum. On S. botryosum. On S. groenlandicum, Scutula stereocaulorum. On Stereocaulon rivulorum (stem, occasionally phyllocladia) (filed under Scutula stereocaulorum) – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Stereocaulon botryosum (th.); Cape Chelyuskin. On Stereocaulon rivulorum; Sibiryakov Is. On Stereocaulon alpinum (th.) – Wrangel’ Is. On Stereocaulon alpinum (stem).

LECCINIUM

Leccinum arctoi Vassilkov – Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Leccinum niveum (Fr.) Rauschert [ = L. holopus (Rostk.) Watling, Boletus scaber Bull.: Fr. f. chioneus (Fr.) Vassilkov, Leccinum scabrum(Bull.: Fr.) Gray f. chioneum (Fr.) L.Michail. ] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Yakutia area, Chukotka peninsula.

Leccinum oxydabile (Sing.) Sing. – Polar Ural , Tyumen area: Yamal Peninsula , Chukotka peninsula , Koryak upland: Kamchatka, Korf’s bay.

Leccinum percandidum (Vassilkov) Watling [ – Boletus aurantiacus St. – Amans f. percandidus (Vassilkov) Vassilkov] – Polar Ural.

Leccinum rotundifoliae (Sing.) A.H.Smith, Thiers et Watling [ =L. scabrum (Bull.: Fr.) Gray ssp. tundrae Kallio, Boletus scaber Bull.: Fr. f. rotundifoliae (Sing.) Vassilkov ] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Arkhangelsk area , Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula. – Sp, Al.

Leccinum variicolor Watling – Polar Ural (as Boletus scaber Fr. f. oxydabilis (Sing.) Vassilkov), CH.

Leccinum versipelle (Fr.) Snell [ = L. testaceoscabrum Sing Boletus aurantiacus St. – Amans f. lebedeveae Vassilkov ] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Arkhangelsk area , Polar Ural, Chukotka peninsula.

LEMBOSINA

Lembosina empetri B.Eriksson – Yakutia area. On dead stems of Empetrum nigrum. – Fl.

LENTOMITA

Lentomita borealis (Barr) Lar.Vassilieva [= Cainiella borealis Barr] - Yakutia area, Chukotka peninsula. On dead twigs Cassiope tetragona. – Arctic regions of Scandinavia. Sp, Ca.

LEOCARPUS

Leocarpus fragilis Dicks – Polar Ural, Taimyr Peninsula, Chukotka peninsula. On coarse wood debris. – Is, Al, Gr.

LEPIDODERMA

Lepidoderma aggregatum Kowalski – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On litter.

Lepidoderma carestianum (Rabenh.) Rostaf. – Chukotka peninsula. On litter. – Is.

Lepidoderma granuliferum (Phill.) R.E.Fries – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On litter.

LEPIOTA

Lepiota clypeolaria (Bull.: Fr.) P. Kumm. – Tyumen area. – Gr, Ic, Fl.

LEPISTA

Lepista multiformis (Romell) Gulden [ = Clitocybe polygonarum Laursen, Miller et Bigelow, Lepista polycephala Harmaja ] – Novosibirskiye Islands (New Siberian Islands)., Polar Ural, Taimyr Peninsula. – Sp, Fl Al, Ca.

Lepista pseudoectypa (M.Lange) Gulden [ = Clitocybe subalpina Bigelow et A.H.Smith ] – Yakutia area.

LEPTOSPHAERIA

Leptosphaeria agnita (Desm.) Ces. et De Not. – Polar Ural. On dead stems of Angelica sylvestris. – Ic, Gr, Al.

Leptosphaeria andrijevicensis Bubá k – Yakutia area. On dead stems of Ranunculus lapponicus.

Leptosphaeria apogon Sacc. et Speg. – Taimyr Peninsula. On litter of Festuca sp. – Ic.

Leptosphaeria artemisiae (Fuckel) Auersw. – Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula.

Leptosphaeria bellynckii (Westend.) Auersw. – Taimyr Peninsula. On dead stems of Bistorta major.

Leptosphaeria caricicola P. Karst. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains).

Leptosphaeria caricis J. Schrö t.[ = L. caricis – vulpinae Lobik] – Polar Ural, Taimyr Peninsula.

Leptosphaeria compressa (Rehm) L. Holm [ = Ophiobolus compressus Rehm] – Taimyr Peninsula, Yakutia area.

Leptosphaeria coniformis (Fr.) G. Winter [ = L. acuta (Fuckel) P.Karst] – Polar Ural. – Al.

Leptosphaeria cylindrospora Auersw. et Niessl – Novaya Zemlya Archipelago.

Leptosphaeria dolioloides (Auersw.) Auersw. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Magadan area, including Kolyma upland. – Ic, Sp, Gr, Al, Ca.

Leptosphaeria doliolum (Pers.: Fr.) Ces. et De Not. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Taimyr Peninsula, Magadan area, including Kolyma upland. – Ic, Gr, Al, Ca.

Leptosphaeria drabae (Nyland) P. Karst. – Novaya Zemlya Archipelago . On dead stems of Draba alpina.

Leptosphaeria dryadophila Huhndorf [ = Melanomma dryadis Johanson, Leptosphaeria dryadis Rostr 1903 pro parte (nomen confusum, vide. Infra n. On L. dryadis Rostr 1904 = L. rostrupii Sacc.)] – Novaya Zemlya Archipelago , Polar Ural, Taimyr Peninsula, Yakutia area. – Fl, Sp, Ic, Gr, Al.

Leptosphaeria folliculata Ellis et Everh. – Taimyr Peninsula. – Al.

Leptosphaeria frigidus Lar. N. Vassiljeva – Chukotka peninsula.

Leptosphaeria galiorum (Roberge ex Desm.) Ces. et De Not. – Taimyr Peninsula. On dead stems of Tripleurospermum hookeri.

Leptosphaeria haematites (Roberge ex Desm.) Niessl – Taimyr Peninsula. On dead stems of Astragalus subpolaris.

Leptosphaeria holmii (Lar.N. Vassiljeva) Lar.N. Vassiljeva – Chukotka peninsula: Wrangel’ Is. On litter and stems of Lagotis minor, L. glauca.

Leptosphaeria johansonii E. Mü ll. – Taimyr Peninsula. On dead stems of Myosotis asiatica; Festuca sp. – Fl, Ic, Ca.

Leptosphaeria larseniana Munk – Taimyr Peninsula. On dead stems of Poa alpigena, P. glauca.

Leptosphaeria luzulae G. Winter – Taimyr Peninsula. On litter of Luzula tundricola – Yakutia area. On Luzula confusa. – Ic.

Leptosphaeria macrospora (Fuckel) Thü m. [ = L. nitschkei Rehm ] – Polar Ural. On dead stems of Cirsium heterophyllum.

Leptosphaeria maculans (Desm.) Ces. et De Not. – Magadan area, including Kolyma upland. On dead stems of Chamerion angustifolium.

Leptosphaeria megalospora Auersw. et Niessl – Taimyr Peninsula. On litter of Tripleurospermum hookeri.

Leptosphaeria niessliana Rabenh.ex Niessl – Polar Ural. On dead stems of Chamerion angustifolium.

Leptosphaeria ogilviensis (Berk. et Broome) Ces. et De Not. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems of Anthriscus sylvestris, Solidago virgaurea – Polar Ural. On dead stems of Trollius europaeus. – Ic, Al, Ca.

Leptosphaeria papaveris Rostr. – Taimyr Peninsula. On dead stems of Papaver lapponicum, P. pulvinatum. – Yakutia area. On Tripleurospermum subpolare. – Ic, Gr.

Leptosphaeria rhodiolicola Petr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains):Pechenga. On Rhodiola rosea.

Leptosphaeria scirpina G. Winter – Taimyr Peninsula. On dead stems of Arctagrostis latifolia.

Leptosphaeria senecionis (Fuckel) G. Winter [ = Pleospora senecionis Fuckel] – Taimyr Peninsula. On litter of Carex stans.

Leptosphaeria suffulta (Nees: Fr.) Niessl – Novaya Zemlya Archipelago. On dead stems of Pedicularis hirsuta.

Leptosphaeria tenuis E. Mü ll. – Taimyr Peninsula. On dead stems and leaves of Arctagrostis arundinacea, Bistorta major.

Leptosphaeria vahlii Rostr. – Yakutia area. On litter of Pedicularis sudetica, Rumex arcticus.

Leptosphaeria valesiaca Wegelin – Taimyr Peninsula. On litter of Arctagrostis arundinacea.

LEPTOSPHAERULINA

Leptosphaerulina pulchra (G. Winter) Barr [ = Sphaerulina dryadis Starbä ck, Leptosphaerulina dryadis (Starbá k) L. Holm] – Polar Ural. On litter of Dryas octopetala – Yakutia area. On Dryas punctata. – Ca.

Leptosphaerulina trifolii (Rostr.) Petr. [ = Sphaerulina oryzae Miyake] – Yakutia area , on dead stems of Poa alpigena.

LEPTOSTROMA

Leptostroma caricinum Fr.: Fr. – Polar Ural, Yakutia area. On dead stems of Carex globularis, C. stans. – Ic, Gr.

Leptostroma herbarum (Fr.: Fr.) Link – Taimyr Peninsula. On dead stems of Artemisia tilesii, A. sibirica. – Ic, Gr, Al.

Leptostroma juncacearum Sacc. var. luzulae Grove – Novaya Zemlya Archipelago. On litter and stems of Luzula wahlenbergii.

Leptostroma laricinum Fuckel – Yakutia area. On firneedle litter Larix cajanderi.

Leptostroma luzulae Lib. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On litter of Luzula confusa L. campestris, L. wahlenbergii.

Leptostroma virgaureae Broome et Har. – Polar Ural. On litter of Solidago virgaurea.

LEPTOTHYRIUM

Leptothyrium arcticum (Fuckel) Lind [ = Labrella arctica Fuckel, Leptostroma potentillae P. Karst.] – Novaya Zemlya Archipelago , Arkhangelsk area.: Vaigach Is., Taimyr Peninsula, Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Yakutia area. On Potentilla crantzii, P. hyparctica, P. nivea P. stipularis, Alchemilla alpina. – Sp, Ic, Gr, Ca.

Leptothyrium boreale Lind – Novaya Zemlya Archipelago. On litter of Juncus biglumis.

Leptothyrium pyrolatum (Rostr.) Jö rst. [ = Septoria pyrolata Rostr.] – Yakutia area. On litter of Pyrola grandiflora. – Fl, Ca.

Leptothyrium silvestre Sacc. et Cavara – Novaya Zemlya Archipelago , Taimyr Peninsula. On litter of Saxifraga stellaris, on living leaves of Saxifraga nivalis.

Leptothyrium tataricum Bruner – Chukotka peninsula. On litter of Polygonum sp.

LEWIA

Lewia infectoria (Fuckel) Barr et E. Simmons [ = Pleospora. Infectoria Fuckel ] – Taimyr Peninsula. On dead stems of Pedicularis sudetica – Yakutia area. On Dupontia fisheri. – Sp, Gr, Al.

LICEA

Licea cf. belmontiana Nann. – Brem. – Polar Ural, Tyumen area, Taimyr Peninsula, Chukotka peninsula. On coarse wood debris, and litter.

Licea kleistobolus G.W. Martin – Polar Ural, Taimyr Peninsula. On dung of Lagopus sp. – Al.

Licea minima Fr. – Polar Ural, Tyumen area, Taimyr Peninsula, Chukotka peninsula. On bark of living trees, shrubs, and litter. – Is, Fl, Al, Gr.

Licea operculata (H. Wingate) G.W. Martin – Polar Ural, Tyumen area, Chukotka peninsula. On coarse wood debris.

Licea parasitica (Zukal) G.W. Martin – Polar Ural, Chukotka peninsula. On bark of living trees and shrubs. – Is, Gr.

Licea testudinacea Nann. – Brem. – Taimyr Peninsula. On bark of living trees and shrubs.

Licea variabilis Schrad. – Polar Ural. On bark of shrubs. – Is, Gr.

LICHENOCHORA

Lichenochora weillii (Werner) Hafellner et R. Sant. – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). On Physconia muscigena (th. ).

LICHENOCONIUM

Lichenoconium erodens M. S. Christ. & D. Hawksw. - Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Scott Keltie Is. On Cetraria cf. islandica (th.), little material, identification not certain; on Parmelia omphalodes (th.).

Lichenoconium lecanorae (Jaap) D. Hawksw. – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is., Rubini Rock. On Arctopeltis thuleana (ap.) , on rock. On A. thuleana (ap., th.) , on rock. On Rhizoplaca chrysoleuca (th.). On R. melanophthalma (ap.) – Putorana Plateau: Kapchuk Lake. On Bryonora rhypariza (disk of ap.). On Melanelia hepatizon (ap.) – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake. On Biatora sp. (ap.). On Lecanora sulphurea (ap., th.) – Al.

Lichenoconium pyxidatae (Oudem.) Petr. & Sydow – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Scott Keltie Is. On Cladonia chlorophaea (th. – podetia).

Lichenoconium usneae (Anzi) D. Hawksw. – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is.: Rubini Rock. On Bryocaulon divergens (th.) – Northbrook Is.: Cape Flora. On Bryocaulon divergens (th.).

LICHENODIPLIS

Lichenodiplis lecanorae (Vouaux) Dyko & D. Hawksw. – Syn. Ascochytula lecanorae (Vouaux) Keissl. – Uncertain report: Novaya Zemlya Archipelago. On ”Lecidea enteroleuca” (th.), Lecidea sp. (th.).

Lichenodiplis lichenicola Dyko et D. Hawksw. – Taimyr Peninsula. On Riodina septentrionalis.

LICHENOSTIGMA

Lichenostigma rugosum G. Thor – Chukotka peninsula. On Diploschistes sp. (th, ap. ?).

LIMACINIA

Limacinia arctica (Woronichin) Barr [ = Aithalomyces arctica Woronichin] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On dead stems of Phyllodoce coerulea – Yakutia area. On dead stems of Empetrum nigrum – Ca.

LINOSPORA

Linospora arctica P. Karst. – Taimyr Peninsula. On litter of Salix reptans.

LLIMONIELLA

Llimoniella groenlandiae (Alstrup & D. Hawksw.) Triebel & Hafellner – Severnaya Zemlya Archipelago. Bolshevik Is.: Baranov Pen. On “Leprocaulon subalbicans” (upper th. surface).

Llimoniella neglecta (Vain.) Triebel & Rambold – Putorana Plateau. E of Lama Lake. On Lepraria sp. (th.) – Kapchuk Lake. On Lepraria sp. (th.) – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Lepraria sp. (th.).

LOPHIOSTOMA

Lophiostoma birulae Lebedeva – Novosibirskiye Islands (New Siberian Islands). On litter and stems of grasses – Taimyr Peninsula.

Lophiostoma macrostomum (Tode: Fr.) Cesati et de Not. – Polar Ural. On dead stems and leafstalks of Dryas octopetala – Tyumen area: Yamal Peninsula.

Lophiostoma winteri (Sacc.) Winter – Polar Ural. On reverse side of dead leaves of Dryas octopetala.

LOPHODERMIUM

Lophodermium caricinum (Roberge ex Desm.) Duby – Polar Ural, Taimyr Peninsula. On dead stems of Carex globularis, Eriophorum polystachion. – Arctic regions of Scandinavia, Ic, Sp, Ca.

Lophodermium cladophilum (Lé v.) Rehm – Polar Ural. On dead leaves of Andromeda polifolia.

Lophodermium gramineum (Fr.) Chevall. – Taimyr Peninsula. On dead stems of Poa alpigena. – Ic.

Lophodermium hysterioides (Pers.) Sacc. – Taimyr Peninsula. On dead leaves of Vaccinium uliginosum var. microphyllum, V. uliginosum.

Lophodermium juniperinum (Fr.) De Not. – Polar Ural. On dead leaves of Juniperus communis. – Ic.

Lophodermium laricinum Duby – , on dead needle of Larix dahurica - Yakutia area.

Lophodermium maculare (Fr.: Fr.) De Not. – Polar Ural, Taimyr Peninsula. On dead leaves of Vaccinium uliginosum, Salix pulchra.

Lophodermium melaleucum (Fr.: Fr.) De Not. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Yakutia area. On dead leaves of Vaccinium vitis-idaea.

Lophodermium neesii Duby – Yakutia area. On dead leaves of Polemonium boreale.

Lophodermium versicolor (Wahlenb.: Fr.) Rehm – Polar Ural, Taimyr Peninsula, Yakutia area. On dead leaves of Salix pulchra, S. lanata, S. pulchra. – Ic.