Percursaria dawsonii Hollenberg & I.A.Abbott Blidingia dawsonii is a species of seaweed from a family of Ulvaceae that can be found in Canada (British Columbia), Mexico, and US states such as California and Washington.

It was described by Hollenberg & I.A.Abbott in 1968.

[1] The species are disputed over genus, which some believe to be Percursaria.

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