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Xanthoria ucrainica
Species, Lichen, Terrestrial
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Xanthoria ulophyllodes
Species, Lichen, Terrestrial
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Xylographa hians
Species, Lichen, Terrestrial
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Xylographa parallela
Species, Lichen, Terrestrial
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Xylographa rubescens
Species, Lichen, Terrestrial
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Xylographa trunciseda
Species, Lichen, Terrestrial
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Xylographa vitiligo
Species, Lichen, Terrestrial
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Xylopsora caradocensis
Species, Lichen, Terrestrial
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Xylopsora friesii
Species, Lichen, Terrestrial
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Zwackhia prosodea
Species, Lichen, Terrestrial
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Zwackhia sorediifera
Species, Lichen, Terrestrial
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Zwackhia viridis
Species, Lichen, Terrestrial
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Zwackhiomyces socialis
Species, Lichen, Terrestrial