Sagiolechia bairdensis is a species of lichenized fungus found in southeastern Alaska.

[1] It grows on small rocks or pebbles.

[2] The lichen has a smooth grey thallus and appears in patches along the grains of the rocks.

Sagiolechia bairdensis differs from others in its genus with its small apothecia, non-trentepohliod photobiont, hyaline 3-septate ascospores and by occurring on siliceous rock.

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