Observation 95650: Parmelia barrenoae Divakar, M.C. Molina & A. Crespo
When: 2012-05-25
(47.0613° -120.6306° 752m)
Herbarium specimen reported

Notes: Substrate: Growing on trunk of Amelanchier arnifolia, on north side, facing downhill towards creek. Protected from sun (dappled shade), slightly protected from wind.

Habitat: Sagebrush steppe, with scattered ponderosa pines, on boundary of riparian aspen community.

Description: Somewhat common in plot, but most specimens are very young. Difficult to find a mature specimen. Isidia not seen. Soredia appears to come from cracks in upper cortex.

Images

222413
Copyright © 2012 Jesse Taylor
222414
Copyright © 2012 Jesse Taylor
222415
Copyright © 2012 Jesse Taylor
222812
The underside is hard to see with the pics through the dissecting scope, but the rhizines look to be simple, not squarrose, even near the center (cross section cut, sorry so blurry). And the “ontogeny of the soralia” also looks the same as described for P. barrenoae — some are ful...
222813
The underside is hard to see with the pics through the dissecting scope, but the rhizines look to be simple, not squarrose, even near the center (cross section cut, sorry so blurry). And the “ontogeny of the soralia” also looks the same as described for P. barrenoae — some are ful...
222814
The underside is hard to see with the pics through the dissecting scope, but the rhizines look to be simple, not squarrose, even near the center (cross section cut, sorry so blurry). And the “ontogeny of the soralia” also looks the same as described for P. barrenoae — some are ful...

Proposed Names

12% (2)
Eye3
Recognized by sight
30% (2)
Recognized by sight
61% (2)
Eye3 Eyes3
Recognized by sight: can’t find squarrose rhizines; lobes tending to be strongly curled due to eroded soralia

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Shhhh…
By: nastassja (Nastassja Noell)
2012-06-01 13:50:45 MDT (-0600)

its a good secret :)

Mediterranean
By: Jason Hollinger (jason)
2012-05-29 14:38:11 MDT (-0600)

Curtis has talked to me about the semi-mediterranean climate of Spokane and a strip of Idaho of hills north of Snake River Plain. Bizarre. Another good place to find that is Klickitat county in Washington. Something about the Columbia River Gorge letting marine climate through to eastern Cascades around that area.

Neat
By: nastassja (Nastassja Noell)
2012-05-29 14:33:17 MDT (-0600)

it sure does match the description of P. barrenoae — I did a cross section of the thallus near the center to read the rhizines near the center, simple, unbranched, not squarrose (the pics through the dissecting scope turn out awfully blurry, sorry). And the cracks in the upper cortex, the pseudocyphellae, some are full blown soralia, others have lost their soredia and just expose the medulla. Mediterranean…!

Could be P. barrenoae
By: Jason Hollinger (jason)
2012-05-29 12:11:04 MDT (-0600)

I still find it hard to diagnose the rhizines – especially from photo! – but this looks like a promising candidate for P. barrenoae. Curtis finds it regularly in that area, too. See paper here: http://tinyurl.com/7coc63m

Created: 2012-05-27 18:00:22 MDT (-0600)
Last modified: 2012-05-29 14:12:42 MDT (-0600)
Viewed: 126 times, last viewed: 2016-06-25 08:05:27 MDT (-0600)
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