Observation 78973: Parmelina Hale
When: 2011-09-24
Who: zaca
No herbarium specimen

Notes: In my oppinion it could be either a Xanthoparmelia or a Parmelina, but I was not able to find anything similar within these genera.

Proposed Names

29% (1)
Recognized by sight
-3% (2)
Recognized by sight
58% (1)
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Recognized by sight

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Comments

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I also agree that this is Parmelina,
By: zaca
2015-05-03 07:27:34 HST (-1000)

and don’t see many hypotheses: either P. carporrhizans or P. tileacea, though the appearance is slightly different from my previous observations of those species.
The suggestion by Jason that the dots are due to resin seems plausible and I never thought that this could be it.

It does look like Parmelina
By: Jason Hollinger (jason)
2015-05-03 04:12:43 HST (-1000)

but P. coleae (= P. quercina) has a very conspicuous C+ bright red reaction lacking here. I still have no clue what this could be. (Nor what the droplets of color are — resin? aphids?…)

Looks like Parmelina
By: J-Dar
2015-05-02 05:20:20 HST (-1000)

The overlapping lobes and black margins, and lack of soredia seem right for Parmelina. I had a hard time getting the C+R medulla, but finally got it by using a tiny amount of C and got a light pinkish color change that faded quickly. Your thallus K test looks like it could be yellowish, which also would be right. Your photos look a lot like a specimen I am working with now, which went to P. quercina. Thallus underside is black with sparse simple black rhizines, and top surface is maculate. No idea what the dots are!

Jason, do you know
By: zaca
2011-10-10 11:13:28 HST (-1000)

what are the big dots mainly of red color, but some brown/dark green?

Created: 2011-10-08 11:22:39 HST (-1000)
Last modified: 2015-05-03 07:27:50 HST (-1000)
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