Observation 159530: Leptogium (Ach.) Gray

When: 2014-01-01

Collection location: Huntsville, Alabama, USA [Click for map]

Who: Tim Martin (T Martin2010)

No specimen available

On a rock, I think limestone, along in a trail in a mixed upland forest. Best shot I could get, hard to photograph given where the lichen was and the lighting.


Proposed Names

27% (1)
Recognized by sight
56% (1)
Recognized by sight: I wouldn’t completely rule out L. cyanescens (usually distinctly bluish) because this is in such an exposed situation. L. austroamericanum is typically darker, I think. Next time check carefully to see if the thallus is tightly wrinkly up close (may need a hand lens to be sure): L. austroamericanum is strongly but minutely wrinkly all over when dry, L. cyanescens is smooth to only slightly wrinkly. I guess if it’s neither of these it has to be CollemaC. subflaccidum or C. fuscovirens? — but the isidia look way too large for Collema.

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= Observer’s choice
= Current consensus


Add Comment
Definitely one to revisit.
By: Tim Martin (T Martin2010)
2014-02-11 20:07:15 EST (-0500)

I know where it is. Thanks so much for the tips Jason, I have a lead now on what to look for next time. Looks like a lichen where I will be able to see characteristics that I cannot photograph.