Observation 98717: Cladonia P. Browne

When: 2012-06-30

Collection location: Trail 165-1, Cherokee National Forest, Citigo, Tennessee, USA [Click for map]

35.4837° -84.1192° 329m

Who: Christine Braaten (wintersbefore)

No specimen available

Lichen found on dry soil under conifers.

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Yes, it should be instantaneous yellow
By: Jason Hollinger (jason)
2012-06-30 18:55:57 EDT (-0400)

Pale but distinct, at least near the tips (it can be faint toward the base of the branches). Maybe this is C. subtenuis, but the branches don’t seem thin and delicate enough, and it looks like it is branching in 3’s at the tips. Maybe this is C. dimorphoclada or something else entirely? I’ll have to look at my references more carefully.

(I assume you know your KOH is good. You can see what the K test should look like by verifying it on a specimen of Physcia or Punctelia — both extremely common in the southern Appalachians. The cortex of many foliose lichens have atranorin, the same substance in C. rangiferina.)

By: Christine Braaten (wintersbefore)
2012-06-30 18:42:42 EDT (-0400)

I dipped a branch in KOH and nothing noticeable happened. Reaction should be instant right? How much of the tips? What color?

Looks “wrong”
By: Jason Hollinger (jason)
2012-06-30 17:53:51 EDT (-0400)

But not sure why. Only real choices in this area are C. subtenuis and C. rangiferina. Do you have KOH (or NaOH in a pinch)? Should be K+y near the tips.

Created: 2012-06-30 16:54:09 EDT (-0400)
Last modified: 2012-06-30 18:56:13 EDT (-0400)
Viewed: 18 times, last viewed: 2017-06-13 05:36:35 EDT (-0400)
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