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When: 2016-04-09

Collection location: Edmund Babler Memorial State Park, St. Louis Co., Missouri, USA [Click for map]

Who: Judi T. (AvidAmateur)

No specimen available

Growing on a large portion of 8-10" diameter dead upright tree — smooth bark, unknown species.


Copyright © 2016 Judi Thomas
Copyright © 2016 Judi Thomas
Copyright © 2016 Judi Thomas

Proposed Names

45% (2)
Recognized by sight
57% (1)
Used references: Helpful comments from Jason and Zaca=)

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
Love the slogan, Zaca!
By: Judi T. (AvidAmateur)
2016-04-10 17:03:36 PDT (-0700)

I find most MO users to be patient with those of us who have a lot to learn. It’s an unbelievably friendly community of mentors. My current camera has a few frustrating limitations, namely macro in dim light (where the tiny lichen seem to thrive) and a sorry depth of field. These drawbacks present some challenges for photographing mushrooms, but are even more challenging, it seems, when photographing lichen. I have been discussing some options with the experts at my local photography store. Lichen may spur me on to purchasing a new camera=) Thanks so much for your support.

Hi Judi,
By: zaca
2016-04-10 15:38:46 PDT (-0700)

As Jason said Graphis scripta is by far the most probable, though not the unique possible, for the classification of this specimen in your region. My comment didn’t take your location into account and was merely based on similarity that I saw at the moment.
Regarding the photos, here we say “nobody is born taught”. This means that you have to pratice to improve your photos and it will be convenient to have a camera with macro feature (I don’t know what you are using). You wouldn’t like to see my first photos of Graphis, for instance. Wish you better and better observations in future.

Jason, thanks for the helpful tip on
By: Judi T. (AvidAmateur)
2016-04-10 15:16:02 PDT (-0700)

identifying the species. Without your comment I would have thought that the open cracks was just an individual variation or an indication of age of the specimens. Next time I see this genus I’ll know what to look for specifically. Great info!

Zaca, sure does look like one of your obs.,
By: Judi T. (AvidAmateur)
2016-04-10 15:11:54 PDT (-0700)

although your photos put mine to shame.

In your region
By: Jason Hollinger (jason)
2016-04-10 10:44:55 PDT (-0700)

you can often find confidence in Graphis scripta without microscopy. It is the only species there in which the cracks (apothecia) will “open up” and reveal a weakly-pruinose hymenium. In other species the rims of the crack will remain pressed tightly together. You often have to search around a little to find apothecia which show this feature, though. G. scripta is also, by far, the most common species north of the Gulf Coast.

Off the record,
By: zaca
2016-04-10 10:38:59 PDT (-0700)

reminds me my Observation 236356.