It's that time of year-- the Nereocystis luetkeana (Bull Kelp) washes ashore in huge knots.
Here is a kelp bed I found on the harbor
The Chromista are a eukaryotic supergroup, probably polyphyletic, which may be treated as a separate kingdom or included among the Protista. They include all algae whose chloroplasts contain chlorophylls a and c, as well as various colorless forms that are closely related to them. These are surrounded by four membranes, and are believed to have been acquired from some red algae.