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Gymnosporangium cornutum Simo . fi Katajanpihlajaruostetta Gymnosporangium cornutum pihlajan lehdill Maksniemess Simossa fi Gymnosporangium cornutum on the leaves of rowan in Maksniemi village in Northern Finland own Estormiz cczero August in Finland Gymnosporangium cornutum Nature of Simo Taken with Canon EOS Uploaded with Pucciniomycetes