Jonathan Cohen's photos with the keyword: algae

The orange, velvety "stuff" especially noticeable on trees and rocks of the shadowed north-facing slopes at Point Lobos is a green algae named Trentepohlia. Its orange color comes from carotene, a pigment which also occurs in carrots, which mask the green of the chlorophyll. The growth of this algae does not harm the trees.

The orange, velvety "stuff" especially noticeable on trees and rocks of the shadowed north-facing slopes at Point Lobos is a green algae named Trentepohlia. Its orange color comes from carotene, a pigment which also occurs in carrots, which mask the green of the chlorophyll. The growth of this algae does not harm the trees.

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