ULKENIA

Ulkenia minuata Raghu Kumar – Chukotka peninsula: Wrangel’ Is. In water specimens.

Ulkenia profunda Gaertner – Chukotka peninsula: Wrangel’ Is. In water specimens.

Ulkenia visurgensis (Ulken) Gaertner – Chukotka peninsula: Wrangel’ Is. In water specimens.

UNCINULA

Uncinula adunca (Wallr.: Fr.) Lé v. – Magadan area, including Kolyma upland: Kolyma Mts. – Fl, Ca, Al.

UREDO

Uredo beringiana (Tranzschel) Parmelee [= Uredo alaskanum (Mains) Cummins, Pucciniastrum ? beringianum Tranzschel, P. alaskanum Mains] – Chukotka peninsula , Magadan area, including Kolyma upland: Kolyma Mts. On Gentiana glauca. – Al.

UROCYSTIS

Urocystis agropyri (Preuss) Fisch. v. Waldh. – Novaya Zemlya Archipelago. On leaves of Arctagrostis latifolia. – Gr, Al, Ca.

Urocystis bromi (Lavrov) Zundel – Chukotka peninsula: Wrangel’ Is. On leaves of Bromopsis pumpelliana.

Urocystis fischeri Kö rn. ex G. Winter – Chukotka peninsula. On leaves of Carex membranacea. – Fl, Ic.

Urocystis irregularis (G. Winter) Sa vul. – Magadan area, including Kolyma upland. On leaves of Aconitum delphinifolium.

Urocystis nivalis (Liro) Zundel – Chukotka peninsula. On leaves of Ranunculus affinis. – Fl.

Urocystis primulae (Rostr.) Magn. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. On leaves of Primula pallasii.

Urocystis pulsatillae (Bubá k) Moesz. – Chukotka peninsula. On peduncles of Pulsatilla multifida.

Urocystis ranunculi – auricomi (Liro) Zundel – Chukotka peninsula. On leaves of Ranunculus affinis.

Urocystis ranunculi (Lib.) Moesz – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On leaves of Ranunculus stevenii.

Urocystis sorosporioides Kö rn. ex Fisch. v. Waldh. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Taimyr Peninsula, Chukotka peninsula: Wrangel’ Is. On leaves of Thalictrum alpinum, Thalictrum minus. – Fl, Ic, Gr.

Urocystis trientalis (Berk. et Broome) Lindeb. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. On leaves of Trientalis europea. – Al.

Urocystis triseti (Cif.) Zundel – Novaya Zemlya Archipelago. On leaves of Trisetum spicatum. – Fl.

Urocystis ulei Magnus – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. On leaves of Festuca rubra. – Fl, Ic.

UROMYCES

Uromyces acetosae J. Schröt. subsp. borealis Liro – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On Rumex alpestris (“R. arifolius “). – Fl, Ic.

Uromyces behenis (DC.) Unger – Taimyr Peninsula. On Silene paucifolia. – Fl.

Uromyces dactylidis Otth [=U.poae Rabench.] – Arkhangelsk area , Taimyr Peninsula. On Ranunculus auricomus. – Ic, Gr.

Uromyces geranii (DC.)Lé v. – Polar Ural, Magadan area, including Kolyma upland: Kolyma Mts. On Geranium albiflorum, G. davuricum, G. erianthum – Fl, Ic, Al.

Uromyces hedysari-obscuri (DC.)Lé v. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Taimyr Peninsula, Magadan area, including Kolyma upland. On Hedysarum hedysarioides (“H.arcticum “). – Al, Ca.

Uromyces lapponicus Lagerh. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Polar Ural, Taimyr Peninsula, Yakutia area, Taimyr Peninsula, Chukotka peninsula , Magadan area, including Kolyma upland: Kolyma Mts., Chukotka peninsula: Wrangel’ Is. , on Astragalus alpinus A. frigidus, Oxytropis. czerepanovii, O. czucotica, O. middendorffii, O. mertensiana, O. revoluta, O. sordida, O. nigrescens. – Fl, Al, Ca.

Uromyces phacae-frigidae (Wbg.) Hariot. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Novaya Zemlya Archipelago , Arkhangelsk area: Kolguev Is., Taimyr Peninsula, Chukotka peninsula: Wrangel’ Is. On Astragalus frigidus, A. umbellatus. – Fl, Al, Ca.

Uromyces sommerfeltii Hyl JÝ rst. et Nannf. [= Uromyces solidaginis (Sommerf.) Niessl] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Polar Ural, Taimyr Peninsula. On Solidago dahurica, S. virgaurea.

USTILAGO

Ustilago avicularis Liro – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. In. inflorescence of Polygonum aviculare.

Ustilago bistortarum (DC.) Kö rn. – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Magadan area, including Kolyma upland: Kolyma Mts., Chukotka peninsula: Wrangel’ Is. In. inflorescence of Bistorta vivipara. – Fl, Sp, Ic, Gr, Al, Ca.

Ustilago bosniaca G.Beck – Chukotka peninsula , Magadan area, including Kolyma upland: Kolyma Mts., Taimyr Peninsula.. In. inflorescence of Aconogon tripterocarpum, A. ochreatum var. riparium. – Ca.

Ustilago bullata Berk. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts. In ovaries of Anisantha tectorum. – Al, Ca.

Ustilago calamagrostidis (Fuckel) Clinton – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Polar Ural. On leaves of Calamagrostis canescens, C. langsdorffii. – Fl, Al, Ca.

Ustilago candollei Tul. – Chukotka peninsula , Yakutia area. In ovaries of Bistorta elliptica.

Ustilago claytoniae Shear. – Taimyr Peninsula, Magadan area, including Kolyma upland: Kolyma Mts. In ovaries of Claytonia acutifolia, C. joanneana. – Ca, Al.

Ustilago concortica (Bubá k) Liro – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On leaf vaginas of Calamagrostis purpurea.

Ustilago goeppertiana J. SchrØ t. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Chukotka peninsula.: Wrangel’ Is. On leaves of Rumex acetosa, R.arifolius. – Fl, Ic.

Ustilago hyperborea A. Blytt [ = Cintractia hyperborea (A. Blytt) Liro.] – Chukotka peninsula: Wrangel’ Is. In ovaries of Luzula confusa. – Sp, Ic, Gr.

Ustilago hypodytes (Schlecht.) Fr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. On leaves of Elymus arenarius.

Ustilago koenigiae Rostr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains). On leaves stems of Koenigia islandica. – Fl, Ic, Gr.

Ustilago marginalis (DC.) L¾ v. – Polar Ural, Magadan area, including Kolyma upland. On leaves of Bistorta elliptica, B. major, Polygonum viviparum. – Ca, Al.

Ustilago picacea Lagerh. et Liro. – Chukotka peninsula: Wrangel’ Is. In ovaries of Koenigia islandica. – Fl, sp.

Ustilago piperi Clinton – Magadan area, including Kolyma upland: Kolyma Mts. On leaves of Aconogon tripterocarpum.

Ustilago pustulata (DC.) G. Winter – Novaya Zemlya Archipelago ; Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Taimyr Peninsula, Polar Ural, Chukotka peninsula: Wrangel’ Is., Magadan area, including Kolyma upland. On leaves of Bistorta elliptica, B. vivipara. – Ic, Al, Ca.

Ustilago reticulata Liro. – Taimyr Peninsula. In ovaries of Bistorta major. – Ca.

Ustilago scorzonerae (Alb. et Schw.) J. SchrØ t. – Magadan area, including Kolyma upland. In ovaries of Scorzonera radiata.

Ustilago scrobiculata Liro. – Polar Ural. On leaves of Calamagrostis langsdorffii.

Ustilago stellariae (Sowerby) Liro. [ = Microbotryum stellariae (Sowerby) G. Deml et Oberwinkler] – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains)., Pechenga , Magadan area, including Kolyma upland: Kolyma Mts. In anthers of Stellaria graminea Stellaria ciliatosepala. – Sp, Ca.

Ustilago striiformis (Westend.) Niessl. – Polar Ural, Taimyr Peninsula. On leaves of Alopecurus alpinus, A. arundinaceus, Beckmannia eruciformis, Trisetum sibiricum. – Sp, Ic, Al.

Ustilago vinosa (Berk.) Tul. – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains), Chukotka peninsula , Yakutia area, Magadan area, including Kolyma upland: Kolyma Mts. In ovaries of Oxyria digyna. – Fl, Ic, Sp, Al, Ca, Gr.

Ustilago violacea (Pers.: Pers.) Roussel [ = Microbotryum violaceum (Pers.: Pers.) G. Deml et Oberwinkler] – Novaya Zemlya Archipelago , Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Polar Ural, Chukotka peninsula: Wrangel’ Is. On Gastrolychnis. Involucrata, Moehringia lateriflora, Dianthus superbus, Silene acaulis, S. paucifolia, Gastrolychnis apetala Minuartia macrocarpa, Viscaria alpina. – Fl, Ic, Sp, Gr, Al, Ca.

Ustilago vuijckii Oudem. et Beijer. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga. In ovaries of Luzula multiflora.

Ustilago warmingii Rostr. – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Pechenga, Chukotka peninsula.: Wrangel’ Is. On leaves and peduncles of Rumex arcticus, R. domesticus. – Fl.

Ustilago pinguiculae Rostr – Murmansk area (northern part of the Kola Peninsula, including Khibin Mountains): Khibiny Mts., Chukotka peninsula. In anthers of Pinguicula alpina, P. spathulata. – Fl, Ic, Ca.

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