Giant kelp Macrocystis pyrifera Location: San Onofre State Beach, near Escondido, CA Year: 2014 Merckslides catalogue number: 05-83865 Comments:

Giant kelp holdfast Macrocystis pyrifera Location: San Onofre State Beach, near Escondido, CA Year: 2014 Merckslides catalogue number: 05-83867 Comments:

Giant kelp Macrocystis pyrifera Location: Ventura beach, Ventura, CA Year: 2014 Merckslides catalogue number: 05-85138 Comments:

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