Species

Trentepohlia aurea (Orange rock hair)

Trentepohlia aurea. Photo: (c) Mike Potts, some rights reserved (CC BY-NC-ND)

iNaturalist • Wikipedia

Trentepohlia aurea is a species of filamentous terrestrial green alga with a worldwide distribution. It grows on rocks, old walls and the trunks and branches of trees such as oaks and the Monterey cypress (Cupressus macrocarpa) where the tree occurs in coastal central California. The orange coloration results from carotenoid pigments in the algal cells. It is probably the most widespread and abundant species of Trentepohlia in the British Isles.:478

— Wikipedia

Sightings

Where in Humboldt

Discussion

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