Observation 64663: Candelaria concolor (Dickson) Stein

When: 2011-03-21

Collection location: Millersylvania State Park, Thurston Co., Washington, USA [Click for map]

Who: Drew Henderson (Hendre17)

No specimen available

On Quercus(Oak) K- reaction. No purple reaction- ruling out Xanthoria.

Abundant soredia-

I’ve been monitoring these for the last week and a half at Yauger park near my apartment- finally tried KOH test. Pretty set on C. concolor at this point. Would recommend Lichens Of North America to anyone seeking to discover the abundance and vast world of lichens.

Species Lists



Proposed Names

86% (1)
Eye3 Eyes3
Used references: Lichens Of North America pg. 205.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
for lichenologists…
By: Jason Hollinger (jason)
2011-03-24 15:38:15 CDT (-0500)

…“coast” means west of Cascades! :) If we really mean “coast” we say “hypermaritime”.

Lichens of N. Amer. is an amazing book, isn’t it? Brodo and Sharnoff are largely responsible for the increase in amateur interest in lichens in the new millennium.

But by all means enjoy the Ganoderma paper and everything else. I know there will always come a time when nothing else is flowering, fruiting, mating, etc. and you’ll come back to lichens! :)

Thanks again Jason!
By: Drew Henderson (Hendre17)
2011-03-24 11:09:33 CDT (-0500)

So glad you referred me to Lichens Of North America >.< It’s absolutely fantastic.

I will continue to monitor the Candelaria in question- however I’m not necessarily “on the coast” here in Olympia,WA. Always exciting to have new species to gather data for and lend a closer look at.

Recently attained an article regarding Ganoderma clades and their Phylogenetics/DNA that is really exciting- but always (and increasingly becoming more) interested in the lichens- You got me hooked!

There’s a new look-alike species…
By: Jason Hollinger (jason)
2011-03-24 07:53:42 CDT (-0500)

Candelaria pacifica, apparently supposed to be more common on the coast. The differences are:

C. concolor – underside (where thallus not dissolved entirely into soredia!) is corticate and smooth, spores 32+ per ascus (where lucky enough to find apothecia!)
C. pacifica – underside without cortex, soredia originating both above and below, spores 8 per ascus

If you ever “figure out” these two species, let me know. :)

Created: 2011-03-23 23:29:47 CDT (-0500)
Last modified: 2011-03-23 23:29:49 CDT (-0500)
Viewed: 93 times, last viewed: 2017-06-09 08:00:07 CDT (-0500)
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