Observation 171172: Parmotrema perlatum (Hudson) M. Choisy

Small sample of Lichen found in Yarrahapinni State Forest.

Proposed Names

-28% (2)
Recognized by sight
-28% (2)
Recognized by sight: wild guess… what does it look like underneath?
-12% (2)
Recognized by sight
92% (2)
Eye3 Eyes3
Used references: Courtesy Jack Elix

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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I too am really “Chuffed” (urban slang) kk

This species really gets around!
By: Jason Hollinger (jason)
2015-07-01 06:32:01 CEST (+0200)

It’s all over the world. What an honor to have Elix himself look at it(!)

Identification verification

Jack Elix was kind enough to look at the two lichen samples and tells me:

MO 171172 = Parmotrema perlatum

That should be a good volume to start on
By: Jason Hollinger (jason)
2015-02-01 06:30:18 CET (+0100)

The Parmeliaceae include probably themajority of the conspicuous “macrolichens”. Big step, but it could really help you get your foot in the door.

I did see your email earlier. Sorry, there was a lot going on then. Started to watch the video but just didn’t have time. Probably over my head anyway. :) But if you’d like to share it on the mailing list (mo-general@googlegroups.com), that would be awesome. Intriguing that there might be a link between mycelia and bees, though. Who would have thought it? (Stamets, obviously. :)

Softcover ISBN-10: ISBN-10: 0 643 05674 2

Have ordered the publication for myself Jason. Delivery date hasn’t been confirmed. Publication is in short supply. Have to wait and see what transpires.
Also sent you at HQ email regarding Fungi article of interest. Did you receive it.
The article was by Paul Stamets. kk

Try not to get whip-lash!
By: Jason Hollinger (jason)
2015-02-01 05:18:01 CET (+0100)

Bad news is I’m not inspiring a great deal of confidence! But the good news is we can finally be absolutely certain of the genus, at least. But alas, bad news is I can’t find a treatment for the genus on-line, and there’s a ton of species on the checklist I don’t recognize. :(

If you can find a copy of the Flora of Australia, Vol. 55, then let’s re-open this observation!


I have added some images you requested. The Micrograph is @ x 100 using KOH 20%.
When I scraped away the top surface of green it revealed “white”. Hope the added images are of assistance. The lichen is in a dried state but flexible.


I will check it out and get back to you. Thanks for the great assistance. kk

Well, that doesn’t sound like Parmotrema anymore
By: Jason Hollinger (jason)
2015-01-28 04:07:30 CET (+0100)

Any chance you could show a photo of the underside. Also, what color is it inside? Maybe scratch a little bit of the cortex off with a sharp razor blade. You might be able to see the algae, as well. This may have cyanobacteria, not green algae.


Jason, the dried specimen is black underneath with what appears to be fine hairlike roots in patches.No identifying aroma. Top side has tinted green and some white surfaces. Lichen is still flexible.

If you are interested in learning more about lichens
By: Jason Hollinger (jason)
2014-07-27 00:36:00 CEST (+0200)

Then it is definitely worth your time to learn about spot tests. K and C are the standard ones (P = paraphenylenediamine is more difficult to get a hold of, but also very important). There is some art to learning how to apply them and interpreting the results reliably, too. Just takes experience. There might be more info on this subject in the public description for Lichen sp..


Jason , another learning circle. Thanks for the directions. Didn’t really know how to present the finds. I will keep your notes handy. Thanks again and Chow, kk

Okay, then let’s go with Parmotrema
By: Jason Hollinger (jason)
2014-07-26 23:57:31 CEST (+0200)

Broad-lobed, smooth below, green algae, epiphytic. It looks like it’s one of the fertile species (no soredia, isidia or phyllidia, and one apothecium is visible). If you had KOH and bleach you could do K (KOH), C (bleach) and KC (KOH then bleach) tests on the medulla (scrape away the smooth cortex to expose the fluffy white interior). That might be enough to give us a confident id.


the top and bottom surfaces were smooth and without any root-like rhizines. The lichen was tending towards rubbery in texture. I am seeing a lot of it on the ground at the moment.This particular lichen grows on bark and usually out of reach, (for me anyhow). With the really low rainfall we have experienced many trees are suffering and some are shedding bark with lichen attached. Elks and Stags are on the forest floor all over the forest areas I visit. Very sad to see the bush suffering. The Eucalypts seem to handle the lack of rain no problem. The thicker barked trees are the ones showing stress.

By: Jason Hollinger (jason)
2014-07-26 20:07:58 CEST (+0200)

What about texture? Is it fuzzy or smooth? Any root-like rhizines?


Jason, have sent you an email with question.

Look Like?

Not a great deal of difference Nathan. Less colour.

Created: 2014-07-26 00:26:34 CEST (+0200)
Last modified: 2015-07-01 06:30:00 CEST (+0200)
Viewed: 114 times, last viewed: 2017-06-18 19:07:24 CEST (+0200)
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