Macbrideola cornea (G

MACBRIDEOLA

Macbrideola cornea (G. Lister et Cran) Alexop. – Polar Ural, Taimyr Peninsula. On bark of living trees, litter, and dung. – Gr.

MACROSPORIUM

Macrosporium arnici Rostr. – Yakutia area. On dead stems of Arnica iljinii.

Macrosporium commune Rabenh. – Novaya Zemlya Archipelago. On litter of Stellaria longipes.

MARASMIUS

Marasmius androsaceus (L.: Fr.) Fr. – Arkhangelsk area , Polar Ural, Tyumen area , Yamal Peninsula , Taimyr Peninsula.

Marasmius epidryas Kü hner – Polar Ural, Taimyr Peninsula: Levinson – Lessing’s lake, Yakutia area, Chukotka peninsula: Wrangel’ Is. – Gr, Sp, Fl Al, Ca.

MARSSONINA

Marssonina violae (Pass.) Sacc. [ = Septoria violae Rabenh.] – Polar Ural. On litter of Viola sp.

MASSARIA

Massaria thalictri (Rostr.) Lind [ = Lizonia thalictri Rostr.] – Novaya Zemlya Archipelago. On dead stems of Thalictrum alpinum. – Ic, Gr.

MASSARINA

Massarina arundinaceae (Sowerby: Fr.) Leuchtmann [ = Leptosphaeria arundinacea (Sowerby) Sacc.] – Polar Ural. On dead stems of Calamagrostis langsdorffii – Taimyr Peninsula. On Calamagrostis neglecta; C. latifolia. – Ic, Sp, Gr.

Massarina balnei – ursi (Rehm) K. et L. Holm – Polar Ural. On dead stems of Dryas octopetala – Yakutia area. On Dryas. Integrifolia. – Fl, Sp.

Massarina polymorpha (Rehm) Sacc. – Chukotka peninsula. On dead stems of Rosa amblyotis, R. acicularis.

MASTIGOSPORIUM

Mastigosporium album Riess – Novaya Zemlya Archipelago , Polar Ural. On living leaves of Arctagrostis latifolia, Calamagrostis langsdorffii. – Sp, Ic.

MELAMPSORA

Melampsora arctica Rostr. [= M. alpina (Arthur) Juel] – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains) Arkhangelsk area Polar Ural, Taimyr Peninsula, Yakutia area, Magadan area, including Kolyma upland, Chukotka peninsula. On Salix arctica, S. chamissonis, S. sphenophylla, S.herbacea, S. phlebophylla, S. polaris, S. rotundifolia; Saxifraga cespitosa, S. cernua, S. nelsoniana, S. oppositifolia. – Fl, Ic, Sp, Gr, Al, Ca.

Melampsora berberifolii Kuprev. – Chukotka peninsula. On Salix berberifolia.

Melampsora epitea (Kunze et Schumach.) Thü m. [= M. larici=epitea Kleb M. arctica auct.] – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land); Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Tyumen area, Taimyr Peninsula, Yakutia area, Chukotka peninsula , Magadan area, including Kolyma upland, Koryak upland. On Salix glauca, S. hastata, S.krylovii, S.myrsenites, S. myrsinifolia, S. phylicifolia, S. pulchra, S. udensis, Larix sp. – Fl, Ic, Sp, Gr, Al Ca.

Melampsora hirculi Lindr. – Chukotka peninsula: Wrangel’ Is. On Saxifraga hirculus. – Fl, Ca.

Melampsora lini (Ehrenb.)Lé v. – Polar Ural. On Linum perenne. – Fl, Ic, Ca.

Melampsora reticulatae Blytt [= M. epitea auct M. arctica auct.] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Yakutia area, Chukotka peninsula. On Salix reticulata, Saxifraga aizoides. – Fl, Ic, Ca.

MELAMPSORELLA

Melampsorella caryophyllacearum (Link) J. SchrØ t [= M. cerastii (Mart.) G. Winter]. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On Stellaria graminea S. nemorum. – Fl, Ic, Al.

MELAMPSORIDIUM

Melampsoridium alni (Thü m.) Dietel [= Peridermium krylovianum Lavrov, Melampsora alni Thü m.]. – Polar Ural, Chukotka peninsula. On Duschekia fruticosa, Larix sibirica.

Melampsoridium betulinum (Pers.) Kleb. [= Melampsora betulina Desm Melampsoridium betulae (Schum.) Arthur] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Chukotka peninsula. On Betula tortuosa B. exilis. – Fl, Ic, Al, Ca.

MELANCONIS

Melanconis stilbostroma (Fr.) Tul. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On Betula sp.

MELANCONIUM

Melanconium betulinum Schum. et Kunze. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On leaves of Betula sp.

MELANOLEUCA

Melanoleuca cognata (Fr.) Konrad et Maubl. – Polar Ural, Taimyr Peninsula, Yakutia area, Chukotka peninsula: Wrangel’ Is. – Sp.

Melanoleuca polioleuca (Fr.) P. Kumm. – Taimyr Peninsula: Levinson – Lessing’s lake.

Melanoleuca stridula (Fr.) Sing. – Yakutia area.

MELANOMMA

Melanomma distincta Lar.N. Vassiljeva – Chukotka peninsula. On dead stems of Pentaphylloides fruticosa.

Melanomma pulvis – pyrius (Pers.: Fr.) Fuckel – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems of Betula sp. – Chukotka peninsula. On Duschekia fruticosa, Betula ermanii, Salix tschuktschorum. – Ic, Gr, Al, Ca.

MENISPORA

Menispora glauca Link ex Pers. – Polar Ural. On dung of partridge.

MERISMATIUM

Merismatium coccisporum (Norman) Vouaux – Chukotka peninsula. Lavrentiia settlement. On Amygdalaria sp. (th.), (filed under Dactylospora amygdalariae); upper course of Loren river N of Lorino settlement. On Amygdalaria sp. (th.), (with Dactylosora amygdalariae) – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On Lepraria sp. (th.) (with Arthonia excentrica) – Yakutia area. Seliakhskii Range at. Indigirka River. On Amygdalaria sp. (th.). This species has been earlier reported from Taimyr Peninsula. by Triebel (1989: 182): Dudinka. On Amygdalaria elegantior, 4 Aug. 1876, M. Brenner (S, associated with Dactylospora purpurascens).

Merismatium decolorans (Rehm ex Arnold) Triebel – Putorana Plateau. N Ayan Lake: alt. c. 800 m. On Cladonia pyxidata (th.: podetia); Kapchuk Lake. On Arthrorhaphis alpina (th.).

Merismatium heterophractum (Nyl.) Vouaux – Chukotka peninsula. Ioni Mt at Ioni Lake. On Biatora sp. (th.) – Left bank of Taniurer River by Bezymiannoe Lake. On Peltigera sp. (th.). On Biatora sp. (ap.) – Putorana Plateau. E Lama Lake: alt. c. 500 m. On Cladonia sp. (th.: cups).

Merismatium nigritellum (Nyl.) Vouaux – Chukotka peninsula. Left bank of Taniurer River by Bezymiannoe Lake. On Biatora sp. (th.) – Taimyr Peninsula., Tolstyy Nos. On moss and green algae.

MERULIOPSIS

Meruliopsis taxicola (Pers.) Bond. – Polar Ural,. On coarse wood debris.

METASPHAERIA

Metasphaeria annae Oudem. – Novaya Zemlya Archipelago. On dead stems of Ranunculus nivalis, R. sulphureus – Arkhangelsk area.: Vaigach Is. – Al.

Metasphaeria arabidis Johanson – Arkhangelsk area.: Kolguev Is. On dry stems of Arabis alpina. – Ic, Gr.

Metasphaeria avenae (Auersw.) Sacc. – Taimyr Peninsula. On dead stems of Arctagrostis latifolia.

Metasphaeria coccodes (P. Karst.) Sacc.[ = Leptosphaeria coccodes P. Karst.] – Polar Ural. On dead stems of Calamagrostis langsdorffii – Taimyr Peninsula. On Arctagrostis arundinacea.

Metasphaeria compositarum Earle – Polar Ural. On dead stems of Solidago virgaurea.

MICROMPHALE

Micromphale foetidum (Sowerby: Fr.) Sing. – Taimyr Peninsula.

Micromphale perforans (Hoffm.: Fr.) Gray – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Tyumen area: Yamal Peninsula.

MICROSPHAERIA

Microsphaera trifolii (Grev.) U. Braun [ = Erysiphe trifolii Grev E. communis Fr. f. hedysari Jacz.] – Polar Ural. – Fl, Ca.

MICROSPHAEROPSIS

Microsphaeropsis olivacea (Bonord.) Hö hn. [ = Coniothyrium olivaceum Bonord.] – Novaya Zemlya Archipelago. On litter of Polemonium campanulatum. – Ic, Sp, Gr, Ca.

MICROSTOMA

Microstoma protracta (Fr.) Kanouse – Polar Ural. On soil.

MITRULA

Mitrula paludosa Fr. [ = Mitrula phalloides Chevall.] – Polar Ural. – Fl, Gr.

MOLLISIA

Mollisia benesuada (Tul.) W. Phillips. – Yakutia area. On hibernated leaves of Duschekia fruticosa.

Mollisia cymbispora Rostr.[ = Beloniella cymbispora (Rostr.) Lind] – Taimyr Peninsula. On dead stems of Eriophorum sp. – Gr.

Mollisia euparaphysata J. SchrØ t. – Taimyr Peninsula. On dead stems of Eriophorum angusifolium.

Mollisia exigua (Cooke) Seaver – Taimyr Peninsula. On dead stems of Arctagrostis latifolia.

Mollisia poae (Fuckel) Sacc. – Taimyr Peninsula. On dead stems of Arctagrostis latifolia.

Mollisia poaeoides Rehm – Taimyr Peninsula. On dead stems of Poa alpigena, P. glauca.

Mollisia ramealis P. Karst. – Taimyr Peninsula., on dead trunk of Duschekia fruticosa.

Mollisia scirpicola (Fuckel) Sacc. – Yakutia area. On hibernated leaves of Eriophorum angustifolium.

Mollisia typhae (Cooke) Sacc. – Yakutia area. On hibernated leaves of Arctophila fulva.

MONOICOMYCES

Monoicomyces furcatus Thaxt. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains).

MORCHELLA

Morchella conica Fr. – Yakutia area. – Ic, Al.

MUCILAGO

Mucilago crustacea Wiggers – Polar Ural, Taimyr Peninsula, Chukotka peninsula. On litter, and living plants. – Is, Fl Al, Gr.

MUELLERELLA

Muellerella hospitans Stizenb. – Taimyr Peninsula. Byrranga Mts.: region of Levinson-Lessing Lake. On crustaceous, terricolous lichen (th.) (Zhurbenko & Santesson, 1996).

Muellerella lichenicola (Sommerf.: Fr.) D. Hawksw. – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Hooker Is.: Rubini Rock. On Xanthoria sp. (th.), (filed under Muellerella pygmaea) – Putorana Plateau. S Ayan Lake. On Lecidella sp. , on drift-wood (th.) – E Lama Lake. On Ochrolechia sp. , on moribund bryophytes (th.) – Taimyr Peninsula. Byrranga Mts: region of Levinson-Lessing Lake. On Caloplaca sp. (ap.). On Caloplaca sp. (ap.). On Toninia squalida (th.). On Xanthoria borealis (th.). On X. elegans (ap.). On X. elegans (ap. + th.). On X. elegans (ap.). On X. elegans (ap. + th.) – Yakutia area. Mouth of Lena River, Ust’-Lenskii Reserve, Taas-Ary Is. On Tephromela atra (th.) – Chukotka peninsula. Inchoun settlement. On Lecidea lapicida (th.), (with Muellerella pygmaea var. pygmaea).

Muellerella pygmaea (Kö rb.) D. Hawksw. – Chukotka peninsula. Inchoun settlement. On Lecidea lapicida (th.), (filed under Cecidonia umbonella) – Near Lavrentiya settlement. On Lecidea lapicida s. lat. (th.). Previous reports: Chukotka peninsula. upper stream of Bol'shoy Peledon River (?). On Lecidea aff. tessellata, (Triebel 1989: 166). Nylander (1887: 43) reported Endococcus erraticus , on Lecidea alpicola from Konyam Bay; material not seen – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). Aagaad Is. On Lecidea sp. (th.); Alger I. On Lecanora sp. (th.); Bell Is.: near a house. On unidentified lichen (th.); Hooker Is., Cape Sedov. On Caloplaca sp. (th.). On Lecanora sp. (th.). On Lecidea sp. (th.); Rubini Rock. On Xanthoria sp. (th), (with Muellerella lichenicola); Northbrook Is.: Cape Flora. On saxicolous Lecidea spp. (th.) – New Siberian Islands.: Bennett Is. On saxicolous Lecidea sp. (th.) – Zhokhov Is. On saxicolous Lecidea sp. (th.). On saxicolous Lecanora sp. (th.). On Xanthoria elegans (th., ap.) – Putorana Plateau: Kapchuk Lake: alt. 700 m. On squamules of an unidentified lichen , on sandy soil. On unidentified custose saxicolous lichen (th.). On saxicolous “Lecidea sp. ” (th.), [var. athallina (Müll. Arg.) Triebel] – Severnaya Zemlya Archipelago. Sedov Archipelago [all specimens , on unidentified crustaceous saxicolous lichens (th.)] – Taimyr Peninsula. Byrranga Mts., region of Levinson-Lessing Lake. On Buellia sp. (th.) , on limestone. On saxicolous Caloplaca sp. (ap.). On saxicolous Caloplaca sp. (th.). On Lecanora dispersa (ap.). On L. hagenii (ap.). On L. polytropa (th.). On Lecanora sp. (ap.) , on limestone. On saxicolous Lecanora sp. (th.). On saxicolous Lecidea sp. (th.). On Pertusaria sp. (th.) , on rock. On Xanthoria elegans (ap.), (filed under Trimmatostroma lichenicola).

MYCENA

Mycena cinerella (P. Karst.) P. Karst. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Yakutia area. – Gr, Fl, Sp.

Mycena epipterygia (Scop.: Fr.) Gray – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural.

Mycena filopes (Bull.: Fr.) P. Kumm. – Tyumen area. – Fl, Sp.

Mycena flavoalba (Fr.) Qué l. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural. – Fl.

Mycena leptocephala (Pers.: Fr.) Gillet – Polar Ural. – Fl.

Mycena megaspora Kauffm. [ = M. uracea Pers. ] – Polar Ural. – Gr.

Mycena meteta (Fr.) P. Kumm. – Polar Ural. – Gr, Fl.

Mycena pura (Pers.: Fr.) P. Kumm. var. pura – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Tyumen area: Yamal Peninsula. – Fl, Sp.

Mycena rorida (Fr.: Fr.) Qué l. – Polar Ural.

Mycena rubromarginata (Fr.: Fr.) P. Kumm. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. – Gr, Fl.

Mycena urania (Fr.: Fr.) Qué l. – Taimyr Peninsula.

Mycena vulgaris (Pers.: Fr.) P. Kumm. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Tyumen area: Yamal Peninsula.

MYCOSPHAERELLA

Mycosphaerella acicola (Cooke et Harkness) Lindau – Yakutia area. On firneedle litter Larix gmelinii.

Mycosphaerella affinis (G. Winter) Lindau – Taimyr Peninsula. On dead stems of Oxytropis middendorffii.

Mycosphaerella alchemillicola Vassiljevsky – Polar Ural. On dead leaves of Alchemilla sp.

Mycosphaerella algida Lar.N. Vassiljeva – Chukotka peninsula: Wrangel’ Is. On litter of Achoriphragma nudicaule.

Mycosphaerella allicina (Fr.) Vestergr. [ = Sphaerella fusispora Fuckel, S. potentillae Oudem S. saxatilis J. SchrØ t Mycosphaerella oxyriae Savile et Parmelle, M. saxifragae Lind, M. tassiana (De Not.) Johanson, M. potentillae Oudem M. nigrificata (Fatur. et Roum.) Lavrov, M. arctica (Fuckel) Lavrov, Sphaeria arctica Fuckel, Sphaerulina arctica (Rostr.) Lind, M. saxatilis (J. SchrØ t.) Tomilin ] – Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land). On dry and dead leaves and stems of Poa arctica – Novaya Zemlya Archipelago. On Arenaria ciliata, Artemisia tilesii, Astragalus alpinus, Campanula uniflora, Cardamine bellidifolia, Cardaminopsis alpina, Carex bigelowii, Cerastium regelii, Deschampsia alpina, D. arctica, Draba alpina, Eriophorum polystachion, Eritrichium villosum, Eutrema edwardsii, Festuca arenaria, F. ovina, F. rubra, Hierochlo¸ pauciflora, Lloydia serotina, Luzula confusa, Minuartia rubella, Achoriphragma nudicaule, Oxyria digyna, Gastrolychnis apetala, Pachypleurum alpinum, Papaver radicatum, Phippsia concinna, Trisetum spicatum, Poa alpigena, Bistorta vivipara, Potentilla hyparctica, Ranunculus hyperboreus, R. nivalis, R. pygmaeus, Saxifraga flagellaris, S. hirculus, S. stellaris, Silene acaulis, Stellaria longipes; Carex atrata, Poa alpina, Potentilla fragiformis, Honckenya peploides, Rumex domesticus, Viscaria alpina, Rhodiola rosea, Saxifraga aizoides, Alchemilla alpina, Sibbaldia procumbens, Pimpinella saxifraga, Arabis sp. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On Arctagrostis latifolia – Arkhangelsk area: Vaigach Is., Kolguev Is. On Alopecurus pratensis, Honckenya peploides, Poa alpina, Puccinellia angustata – Polar Ural. On Agrostis borealis, Festuca ovina, Polemonium coeruleum, Veratrum lobelianum, Poa arctica – Taimyr Peninsula: Preobrazhenia Is. On Puccinellia phryganodes; Armeria scabra, Rumex acetosella, Arctagrostis arundinacea, Eremogone saxatilis, Hierochlo¸ alpina, Saxifraga spinulosa, Koeleria asiatica, Papaver polare, Potentilla stipularis, Saxifraga punctata, Artemisia sp. Bromopsis pumpelliana, Draba sp. Luzula confusa, Lychnis sibirica, Minuartia rubella, Papaver lapponicum, Papaver radicatum, Pedicularis sudetica, Pedicularis verticillata, Poa glauca, P. alpigena, Silene paucifolia, Stellaria sp., Trisetum sibiricum, Calamagrostis langsdorffii, C. neglecta, Carex ensifolia, Potentilla stipularis, Achoriphragma nudicaule, Alopecurus alpinus, Androsace septentrionalis, Calamagrostis holmii, Carex stans, Cerastium maximum, Deschampsia cespitosa, Diapensia obovata, Draba hirta, Eriophorum polystachion, Poa alpigena, Saxifraga hieracifolia, Senecio arcticus, Taraxacum sibiricum, Tripleurospermum sibiricum – Yakutia area. – Chukotka peninsula: Wrangel’ Is. On Polemonium boreale – Magadan area, including Kolyma upland. – Fl, Ic, Sp, Al.

Mycosphaerella alni (Fuckel) Tomilin – Yakutia area. On litter of Duschekia fruticosa.

Mycosphaerella anarithma (Berk. et Broome) Lindau – Taimyr Peninsula. On dead stems and leaves of Arctagrostis arundinacea. On Carex ånsifolia, Trisetum sibiricum, Poa alpigena – Chukotka peninsula: Wrangel’ Is. On Alopecurus alpinus, Arctagrostis arundinacea.

Mycosphaerella arnicae Speg. – Taimyr Peninsula. On dead stems of Arnica iljinii.

Mycosphaerella asteroma (Fr.) Lindau – Taimyr Peninsula. On dead stems of Draba pauciflora – Chukotka peninsula. On Astragalus sp.

Mycosphaerella astragali (Curr.) Tomilin – Taimyr Peninsula. On dead stems of Oxytropis middendorffii.

Mycosphaerella badensis (Niessl) Lindau – Taimyr Peninsula. On dead stems of Arctagrostis arundinacea.

Mycosphaerella calycicola (Pass.) Tomilin – Taimyr Peninsula. On dead stems and leaves of Bistorta vivipara.

Mycosphaerella capronii (Sacc.) Lind – Polar Ural. On dead leaves of Salix Sp. – Taimyr Peninsula Salix pulchra, Salix sp. – Ic, Gr, Ca.

Mycosphaerella caricicola (Fuckel) Lind – Taimyr Peninsula. On litter of Carex ensifolia, Carex stans. – Gr.

Mycosphaerella caricis (Dearn. et House) Petr. et Syd. – Taimyr Peninsula. On litter of Carex stans.

Mycosphaerella carniolica (Niessl) Tomilin. – Taimyr Peninsula. On dead stems of Achoriphragma nudicaule.

Mycosphaerella caryophylli (Pass.) Cruchet – Taimyr Peninsula. On dead stems of Eremogone saxatilis , Dianthus repens. – Al.

Mycosphaerella chlorinensis (Kirsch.) Tomilin – Polar Ural. On dead leaves of Rumex acetosa.

Mycosphaerella clallamensis C. Sprague – Taimyr Peninsula. On litter of Poa alpigena.

Mycosphaerella comari (J. Schrö t.) Tomilin – Yakutia area. On litter and stems of Comarum palustre.

Mycosphaerella compositarum (Auersw.) J. SchrØ t. – Novaya Zemlya Archipelago. On dead stems of Tripleurospermum perforatum – Polar Ural. On Cirsium heterophyllum. – Ic.

Mycosphaerella confinis (P. Karst.) Dearn. – Novaya Zemlya Archipelago. On dead stems of Braya purpurascens, Campanula uniflora, Achoriphragma nudicaule – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On Moehringia lateriflora; Bistorta major – Polar Ural. On Gastrolychnis involcurata, Achoriphragma nudicaule – Taimyr Peninsula. – Sp, Gr, Al, Ca.

Mycosphaerella conglomerata (Wallr.) Lindau. On dead leaves of Duschekia fruticosa – Polar Ural.

Mycosphaerella cruciferarum (Fr.: Fr.) Lindau [ = Sphaerella pachypleuri Fuckel, M. cassiopes Barr, M. pyrenaica (Speg.) Arx, M. pachypleuri (Fuckel) Jacz M. polemonii Lind, M. conspicua (J. SchrØ t.) Vestegr.] – Novaya Zemlya Archipelago. On litter and stems of Pachypleurum alpinum. Taimyr Peninsula, Yakutia area, Polar Ural. On Polemonium acutiflorum, Pachypleurum alpinum. On litter and peduncles of Cassiope tetragona, Achoriphragma nudicaule, Poa boreale, Cardamine bellidifolia, Poa boreale – Chukotka peninsula: Wrangel’ Is. On Poa boreale. – Ic, Gr, Al, Ca.

Mycosphaerella curvulata (Pass.) Tomilin – Chukotka peninsula. On litter of Salix sp.

Mycosphaerella densa (Rostr.) Lind – Novaya Zemlya Archipelago. On stems of Cardamine bellidifolia, C. pratensis, Saxifraga stellaris, Thalictrum alpinum, Minuartia verna ("Alsine verna Bartl.") – Arkhangelsk area: Yugorskii peninsula. On Saxifraga hieracifolia – Taimyr Peninsula. On Cardamine pratensis, Thalictrum alpinum – Polar Ural. On living stems of Minuartia arctica, Saxifraga punctata. – Ic, Sp, Gr, Al, Ca.

Mycosphaerella dryadicola (Rostr.) Munk. – Yakutia area. On litter and stems of Dryas punctata.

Mycosphaerella dryadis (Auersw.) Lindau [ = M. ootheca (Sacc.) Magnus et Dalla Torre] – Novaya Zemlya Archipelago. On litter of Dryas octopetala – Taimyr Peninsula. On dead peduncules of Dryas punctata – Yakutia area. – Ic, Gr, Al, Ca.

Mycosphaerella elymi (Unamuno) Tomilin – Taimyr Peninsula. On dead stems of Poa alpigena.

Mycosphaerella equiseti (Fuckel) J. SchrØ t. – Polar Ural. On dead stems of Equisetum palustre. – Ic, Sp.

Mycosphaerella eriophila (Niessl) Lindau – Novaya Zemlya Archipelago . On litter of Erigeron uniflorus – Chukotka peninsula. On Artemisia kruhsiana Bess. – Ic, Sp, Gr, Ca, Al.

Mycosphaerella fusca (Pass.) Tomilin – Taimyr Peninsula. On dead stems of Oxytropis nigrescens.

Mycosphaerella graeca Petr. – Taimyr Peninsula. On litter of Eriophorum polystachion.

Mycosphaerella graminicola (Fuckel) J. SchrØ t. – Taimyr Peninsula. On litter and stems of Hierochlo¸ pauciflora, Poa arctica.

Mycosphaerella graminis (Sacc. et Scalia) Lavrov ("M. raminum") – Taimyr Peninsula. On litter and stems of Poa arctica – Yakutia area. On Arctophila fulva, dead spikes of Poa alpigena.

Mycosphaerella grisea (Boyer et Jacz.) Tomilin – Taimyr Peninsula. On dead stems of Pedicularis sudetica.

Mycosphaerella grossulariae (Aursw.) Lindau – Yakutia area. On litter of Ribes triste.

Mycosphaerella heracleina Everh. – Taimyr Peninsula. On litter of Eremogone saxatilis.

Mycosphaerella hranicensis Petr. – Taimyr Peninsula. On litter of Carex stans, C. ensifolia.

Mycosphaerella hypsicola (Ell. et Everh.) Lindau – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems of Trollius europaeus.

Mycosphaerella ignobilis (Auersw.) Lindau [ = M. ignobilis (Auersw.) Lavrov] – Taimyr Peninsula. On litter of Agrostis sp. – Gr, Al.

Mycosphaerella innumerella (P. Karst.) J. Schrö t. – Arkhangelsk area: Vaigach Is. On litter of Comarum palustre. – Gr.

Mycosphaerella insulana Bubá k et Syd. – Polar Ural. On dead stems and leaves of Rumex acetosa – Yakutia area. On Calamagrostis holmii.

Mycosphaerella isariphora (Desm.) Johanson [ = Sphaerella isariphora Fuckel ] – Novaya Zemlya Archipelago. On litter of Minuartia ("Alsine") sp. – Ic.

Mycosphaerella juniginea (Lasch) J. SchrØ t. – Polar Ural. On dead stems of Juncus sp.

Mycosphaerella lactucae (Ellis et Everh.) Tomilin – Taimyr Peninsula. On litter of Lloydia serotina.

Mycosphaerella lignicola (Munk) Munk – Yakutia area. On wood of dead branches of Duschekia fruticosa, Betula exilis.

Mycosphaerella lineolata (Roberge ex Desm.) J. SchrØ t. – Polar Ural. On dead stems and leaves of Carex sp. – Taimyr Peninsula. On Carex stans, Hierochlo¸ odorata – Yakutia area Arctagrostis arundinacea. – Ic, Gr, Ca.

Mycosphaerella longissima (Fuckel) Lindau – Taimyr Peninsula. On dead spikes of Arctagrostis arundinacea. – Al.

Mycosphaerella lycopodii (Peck) House – Polar Ural. On dead stems of Lycopodium annotinum – Sp, Al.

Mycosphaerella lysimachiae Hö hn. [ = M. saussureae. – Alpina Petr.] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems and leaves of Saussurea alpina.

Mycosphaerella maculiformis (Fr.) J. SchrØ t. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems of Salix myrsinites. – Fl, Sp.

Mycosphaerella magnusiana Jaap. – Taimyr Peninsula. On dead stems of Minuartia rubella, Minuartia arctica – Yakutia area. On Astragalus alpinus.

Mycosphaerella minor (P. Karst.) Johanson. – Novaya Zemlya Archipelago – Arkhangelsk area: Vaigach Is. On dead stems of Saxifraga hirculus, S. nivalis – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On Chamerion angusifolium – Taimyr Peninsula. On Cassiope tetragona – Yakutia area. On: Andromeda polifolia, Astragalus alpinus, Arctous alpina, Empetrum nigrum, Ledum decumbens, Papaver lapponicum, Pyrola grandiflora, Ranunculus lapponicus, Saxifraga hieracifolia, Vaccinium vitis – idaea. – Ic, Sp, Gr, Ca, Al.

Mycosphaerella minuartiae Tomilin – Taimyr Peninsula. On dead stems of Minuartia arctica.

Mycosphaerella munkii Tomilin. – Taimyr Peninsula. On litter of Arctagrostis latifolia.

Mycosphaerella nebulosa (Fr.) Lind. – Polar Ural. On dead stems of Solidago virgaurea.

Mycosphaerella nivalis (Oudem.) Lind. – Novaya Zemlya Archipelago. On litter of Ranunculus sulphureus.

Mycosphaerella octopetalae (Oudem.) Lind. – Novaya Zemlya Archipelago , Tyumen area: Yamal Peninsula. On litter of Dryas octopetala – Polar Ural. On dead leaves and stems of Dryas octopetala – Yakutia area. – Fl, Sp.

Mycosphaerella omphalosporioides Petr. On litter of Eriophorum scheuchzeri – Taimyr Peninsula.

Mycosphaerella papaveris (Fuckel) Jacz. [ = Sphaerella papaveris Fuckel ]. – Novaya Zemlya Archipelago. On litter of Papaver nudicaule – Taimyr Peninsula. On Draba Sp., Papaver lapponicum – Yakutia area. On Cochlearia arctica, Papaver lapponicum; Potentilla stipularis.

Mycosphaerella pedicularidis (P. Karst.) Lind. – Novaya Zemlya Archipelago. On litter and stems of Pedicularis sudetica. – Taimyr Peninsula, Yakutia area, Polar Ural. On Pedicularis sp. – Sp, Gr, Ca.

Mycosphaerella perexigua (P. Karst.) Johanson – Novaya Zemlya Archipelago. On dead stems of Luzula wahlenbergii – Novaya Zemlya Archipelago. On Juncus biglumis – Arkhangelsk area: Vaigach Is. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On Juncus triglumis – Polar Ural. On Juncus sp. – Taimyr Peninsula. On Luzula tundricola – Yakutia area. On Alopecurus alpinus, Arctophila fulva, Eriophorum polystachion, Luzula confusa. – Ic, Sp, Gr, Ca.

Mycosphaerella petsamoensis Petr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On dead stems and leaves of Chamerion angustifolium, Cirsium palustre.

Mycosphaerella polaris (P. Karst.) Lindau. – Novaya Zemlya Archipelago. On dead stems of Salix arctica. – sp.

Mycosphaerella polifoliae(Ellis et Everh.) Bubá k. – Yakutia area. On litter of Andromeda polifolia.

Mycosphaerella populi (Auersw.) J. SchrØ t. – Polar Ural. On dead leaves of Populus tremula. – Al, Ca.

Mycosphaerella potentillae-stipularis Tomilin. – Taimyr Peninsula. On dead stems of Potentilla stipularis.

Mycosphaerella primulae (Auersw. et Heufl.) J. SchrØ t. – Taimyr Peninsula. On dead stems of Androsace septentrionalis, Allium schoenoprasum. – Al.

Mycosphaerella pseudopsammae Munk. – Taimyr Peninsula. On litter of Bromopsis umpelliana, Arctagrostis arundinacea.

Mycosphaerella punctiformis (Pers.: Fr.) Starbä ck. [ = M. maculiformis (Pers.: Fr.) J. SchrØ t., M. juniperina(Ellis) Tomilin ] – Polar Ural. On dead leaves of Juniperus communis, Salix Sp. – Taimyr Peninsula. On , Salix polaris – Yakutia area. On Salix pulchra. – Ic, Sp, Gr, Al, Ca.

Mycosphaerella pusilla (Auersw. ) Johanson. – Polar Ural. On dead stems of Carex globularis – Taimyr Peninsula. On Alopecurus alpinus – Preobrazhenia Is. On "Colpodium fulvum". – Ic, Sp, Al.

Mycosphaerella pyrolae (Rostr.) Lind [non M. pyrolae (Ehrenb: Fr.) B. Eriksson] – Novaya Zemlya Archipelago. On litter of Pyrola grandiflora. Polar Ural, Yakutia area.

Mycosphaerella ranunculi (P. Karst.) Lind. – Novaya Zemlya Archipelago , Arkhangelsk area.: Kolguev Is., on dead stems of Ranunculus propinquus, "Sphaerella fusispora Fuckel". Polar Ural, on Ranunculus sp. Taimyr Peninsula, on Trollius ledebourii, Delphinium chamissonis. Yakutia area, on Ranunculus nivalis. Chukotka peninsula: Wrangel’ Is., on Ranunculus pygmaeus. – Sp, Gr, Al, Ca.

Mycosphaerella recutita (Fr.: Fr.) Johanson [ = M. wichuriana (J. Schrö t.) Johanson, M. thalictri (Ellis. et Everh.) Lindau]. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Zemlya Frantsa-Iosifa Archipelago (Franz Josef Land), Novaya Zemlya Archipelago , Arkhangelsk area , Polar Ural, Chukotka peninsula. On litter and stems of Dupontia fisheri, Carex rariflora, Eriophorum olystachion, , on Arcrtagrostis latifolia, A. arundinacea, Poa abbreviata, Carex pedata, Agrostis sp., Arctagrostis arundinacea, Arctagrostis latifolia, Eriophorum vaginatum, Carex stans, Poa alpigena, Alopecurus alpinus, Festuca cryophila, Deschampsia sukatschewii, Trisetum sibiricum, Hierochlo¸ alpina, Delphinium chamissonis, Dupontia fisheri, Festuca brachyphylla, Hierochlo¸ alpina. – Fl, Ic, Sp, Gr, Al, Ca.

Mycosphaerella rhynchosporae Petr. – Taimyr Peninsula. On litter of Eriophorum polystachion.

Mycosphaerella sarraceniae (Schw: Fr.) House. – Magadan area, including Kolyma upland: Kolyma Mts. On dead stems of Arctagrostis latifolia.

Mycosphaerella setosa Tomilin – Polar Ural. On dead leaves of Empetrum nigrum.

Mycosphaerella sphaerelloides (Sacc.) Syd. et Petr. – Taimyr Peninsula. On dead stems of Novosieversia glacialis, Ranunculus propinquus.

Mycosphaerella spinarum (Auersw.) Migula. – Taimyr Peninsula. On dead stems of Astragalus umbellatus – Yakutia area. On Astragalus alpinus. – Ca.

Mycosphaerella stellarinearum (Rabenh.) Johanson. – Taimyr Peninsula. On dead stems of Draba pauciflora. – Ic, Sp, Al.

Mycosphaerella tajmirensis Tomilin. – Taimyr Peninsula. On dead stems of Poa alpigena, Trisetum sibiricum.

Mycosphaerella taraxaci (P. Karst.) Lind. – Novaya Zemlya Archipelago , Arkhangelsk area: Vaigach Is., Taimyr Peninsula. On litter of Taraxacum arcticum, T. glabrum, T. platylepium – Yakutia area. On Senecio arcticus. – Sp, Ic, Gr, Ca.

Mycosphaerella thais (Sacc.) Negru et Beneë. – Taimyr Peninsula. On litter of Eriophorum polystachion.

Mycosphaerella tingens (Niessl) Lindau. – Taimyr Peninsula. On dead stems of Saxifraga hieracifolia. – Ic.

Mycosphaerella tragopogonicola Petr. – Taimyr Peninsula. On dead stems of Androsace lehmanniana.

Mycosphaerella umbelliferarum (Rabenh.) Lind. – Polar Ural. On dead stems of Angelica decurrens.

Mycosphaerella vaccinii (Cooke) J. SchrØ t.[ = Venturia myrtilli Cooke]. – Taimyr Peninsula. On dead stems of Cassiope tetragona.

Mycosphaerella verartri Hö hn – Polar Ural. On dead leaves and stems of Veratrum lobelianum. – Gr, Ca.

Mycosphaerella vesicariae-arcticae (P. Henn.) Tomilin – Taimyr Peninsula. On dead stems of Achoriphragma nudicaule.

Mycosphaerella vivipari (G. Winter) Lind. – Taimyr Peninsula. On dead stems and leaves of Bistorta major – Yakutia area. On Bistorta vivipara. – Sp, Ca.

Mycosphaerella volkartii Tomilin [ = M. calamagrostidis Petr.] – Polar Ural. On dead stems of Calamagrostis langsdorffii – Taimyr Peninsula. On Alopecurus alpinus – Yakutia area. On Arctagrostis arundinacea.

Mycosphaerella vulgaris (P. Karst.) J. SchrØ t – Polar Ural. On dead stems of Chamerion angustifolium.

MYTILINIDION

Mytilinidion gemmigenum Fuckel – Chukotka peninsula.

MYXARIUM

Myxarium nucleatum Wallr. [= Exidia gemmata (Lé v.) Bourd.et Maire] – Polar Ural. On coarse wood debris of birch.

MYXOFUSICOCCUM

Myxofusicoccum ericeti (Sacc.) Petr. – Yakutia area. On litter of Ledum decumbens.