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HABITAT oldgrowth chaparral and conglomerate outcrops at top of high transverse ridge; SUBSTRATE north face of conglomerate cliff; ASPECT shaded; NOTES yellow-orange lumpy scattered crust, deep red-brown apothecia, margins thick even smooth deep red-orange, disk red-brown matte, exciple above thalline margin radiating hyphae becomine squeezed out below apothecia, paraphyses slightly swollen at tips and often branched near tips; SPORES 18-20 × 7-8 µm, isthmus 1-3 µm.

Might not be red enough to be var. bolanderi?


Apothecia, at 30x, stacked.

Proposed Names

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Used references: Jason Dart’s suggestion

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Add Comment
By: J-Dar
2020-01-28 18:05:09 PST (-0800)

Yeah the confusing info in the literature, even within the SAME literature, is so difficult. But little by little, progress is being made…

Thank you, Jason!
By: Jason Hollinger (jason)
2020-01-23 09:30:09 PST (-0800)

I confess I skipped over C. stantonii without a second thought because of the mention of granules in the key couplet in the Sonoran Fllora. But on further reading, the description claims it has no granules(!) and then later the discussion says it’s characterized by sometimes having granules around the margins. Thank you! (I assume the comment in the description about lacking granules refers to microscopic granules not thallus granules, but boy is that confusing. :)

I get stantonii
By: J-Dar
2020-01-23 06:46:26 PST (-0800)

I didn’t catch how big your spores are, which narrows the possibilities quickly. With Ryan’s Saxicolous Caloplaca key it seems to go well to stantonii. Good on range, close with spore size, match for apothecia color, and thallus seems appropriate if a bit scant compared to Sharnoff photos.

Thallus is too well-developed
By: Jason Hollinger (jason)
2020-01-22 23:25:07 PST (-0800)

You can see it in this photo, but it’s even more obvious in another photo I didn’t post. Let me add that one despite it being such a crappy photo.

Of course, the spores are too wide for luteominia, and maybe other things wrong?

Could this be arenaria?
By: J-Dar
2020-01-22 19:21:48 PST (-0800)

I agree with your old comment that it might not be red enough for bolanderi