Observation 21122: Trentepohlia Mart.
When: 2009-03-27
No herbarium specimen

Notes: This organism was abundant on an area of about 1-2 acres, right on the cliff of the shore. It covered large percentages of open surfaces on cypresses and boulders, and to a lesser extent the duff and pines. Seemed to be most partial to cypress.

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Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz

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Thanks Jason!
By: Christian (Christian Schwarz)
2009-05-18 22:30:58 CDT (-0400)
“Green” algae
By: Jason Hollinger (jason)
2009-05-18 21:21:36 CDT (-0400)

Believe it or not. I had to look it up two years ago when I was there, too. The most remarkable thing about it (I think) is that the false orchil lichen growing on the very same trees (Dendrographa) happens to use Trentepholia as its photobiont. Coincidence? Alas, I can’t find anyone who knows which exact species of algae are involved…

While it is particularly striking in this particular grove of monterey cypresses — an effect of the salt spray? the substrate? — you can find red Trentepohlia just like this growing free on rocks and weathered wood throughout the world in relatively moist climates.

(Incidentally, it is red due to high content of carotene.)

Never seen anything like it
By: Irene Andersson (irenea)
2009-05-18 16:55:15 CDT (-0400)

Covering such large and exposed areas, I’d guess some rust fungus..

Created: 2009-05-18 16:41:29 CDT (-0400)
Last modified: 2013-10-18 00:11:10 CDT (-0400)
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