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marlandza: Verrucaria nigrescens, West Coast National Park - 2012
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marlandza: Dark Lichen on rock, Tzaarsbank - 2012
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marlandza: Dark Lichen on rock, Tzaarsbank - 2012
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marlandza: Dark Lichen on rock, Tzaarsbank - 2012
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marlandza: Verrucaria, Stofbergsfontein - 2012
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marlandza: Verrucaria nigrescens, Stofbergsfontein - April 2012
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marlandza: Verrucaria on limestone, Stofbergsfontein - April 2012