Observation 25981: Lichen P. Micheli

When: 2009-09-29

Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Will spend some time with this rather pretty coral-colored lichen shortly. Has odd attachment to 1" diameter branch it was growing on: meandering black snake-like holdfasts instead of the rhizimes I expected to find. Cortex white, thallus sometimes cracking, but typically growing from a centralized point and radiating outward. Green algae growing on bottom-most portion of branch, then this lichen, then what looks like Parmela sulcata on the upper-most surface. Where this coral-colored lichen and the Parmela meet, they push each-other outward and upward. Small raised ridges and pimple-like areas on surface of thallus.



Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight: Foliose pinkish-coral-brown, with running ridges of black holdfasts? instead of cilia or rhizimes.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Went back a couple days later
By: Daniel B. Wheeler (Tuberale)
2009-10-15 21:39:44 CDT (-0400)

to document some of the other mushrooms coming out, and couldn’t find my branch with the cool pinkish thingies. One of the problems in collecting at a doctors office: groundskeepers are too clean.

doesn’t look like a lichen to me
By: Jason Hollinger (jason)
2009-10-15 13:58:38 CDT (-0400)

I agree with the Parmelia sulcata, and the algae at the base could well be a crustose lichen, but the tan/buff/coral thing looks much more like a basidio to me. At any rate, doesn’t look like any lichen I’ve ever seen. (Heh, maybe you’ve discovered a totally new basidiolichen! :)

Created: 2009-09-29 21:13:24 CDT (-0400)
Last modified: 2009-09-29 21:13:24 CDT (-0400)
Viewed: 53 times, last viewed: 2017-06-06 04:20:46 CDT (-0400)
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