Observation 208317: Ramboldia russula (Ach.) Kalb, Lumbsch & Elix

When: 2015-06-29

Collection location: Gainesville, Florida, USA [Click for map]

Who: Sarah Prentice

No specimen available

Proposed Names

-1% (2)
Recognized by sight
-28% (1)
Recognized by sight: pretty wild guess, any way to get a closer photo?
-28% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Right on, Jason.
By: Sarah Prentice
2015-07-05 00:48:03 CDT (-0500)

Thanks for the ID. :)

Can I get your opinion on a few other lichen observations?


http://mushroomobserver.org/208499 (EDIT: observation destroyed)

I’m confident in my ID of the former. The latter…really unsure. In my beginner brain, barnacle-like = Thelotrema.

By: Jason Hollinger (jason)
2015-07-04 22:15:27 CDT (-0500)

Good, no question it is Ramboldia russula now. This thing turns the coolest striking vivid purple under microscope when you add KOH to the slide. And has neat “acicular” (needle-like) multiseptate spores. Never gets old. :)

Pics added
By: Sarah Prentice
2015-07-04 14:06:33 CDT (-0500)

Hey Jason, I returned today and took some dry close-ups. Hopefully these are better for ID.

By: Sarah Prentice
2015-07-01 18:02:24 CDT (-0500)

Most of that is beyond my skill level and budget right now, but I think I can manage some dry close-up photography. :)

Depends how much you want to learn about lichens! :)
By: Jason Hollinger (jason)
2015-06-30 22:14:29 CDT (-0500)

This thing is probably really beautiful under a dissecting scope, and it will have dramatic reaction to KOH, and probably interesting spores to boot. A good introduction to the wonders of crustose lichens! :)

But if we just want a good id, then a good close-up photo of it while dry may well be enough to clear up any doubt.

I’ll do my best!
By: Sarah Prentice
2015-06-30 22:01:21 CDT (-0500)

No rain today, and the forecast is promising.

Should I also collect a specimen or something? (I’m clueless.)

Both dry and closer will help
By: Jason Hollinger (jason)
2015-06-30 21:54:37 CDT (-0500)

I have trouble identifying wet specimens from photo. :(

By: Sarah Prentice
2015-06-30 21:45:33 CDT (-0500)

I plan to return to this site in the next day or two, and I can try to take closer/better photos at that time.

Still can’t tell!
By: Jason Hollinger (jason)
2015-06-30 21:37:01 CDT (-0500)

Cover all the bases instead.

Briganteae leucoxantha always has scattered apothecia in my photos, and is brighter orange, even when wet.

Ramboldia russula is closer in color, but I don’t remember seeing clustered apothecia in it, either.

Caloplaca is not common on Florida, and most records are an isidiate thing (C. epiphora) which looks totally different. Can’t think of any plausible candidates… but that doesn’t rule it out conclusively.

Hey Jason
By: Sarah Prentice
2015-06-30 21:29:57 CDT (-0500)

I added a closer photo. Let me know what you think!

Created: 2015-06-30 19:26:43 CDT (-0500)
Last modified: 2017-03-01 00:31:56 CST (-0600)
Viewed: 119 times, last viewed: 2017-12-09 10:59:08 CST (-0600)
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