on slate?; rocky broad northwestern ridge of summit, geology a mixture of siliceous metamorphic rocks; on broad ridge about 0.3 miles northwest of west peak (about 75m west of main peak)

lobes verruculose ~mottled convex, forming distinct rosette, medulla hollow in places white K- C- KC- P- UV-, cortex K- C- KC+ gold P- UV- 350nm UV+y 375nm, apothecia pale yellow-brown epruinose to blackish-reddish N-



Proposed Names

-29% (1)
Recognized by sight: morphology wrong
Based on chemical features: chemistry right?
58% (1)
Recognized by sight: morphology is right
Based on chemical features: chemistry is wrong

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My notes say that this is totally negative
By: Jason Hollinger (jason)
2018-06-23 00:00:30 CDT (-0400)

But, no, I don’t TLC these things (yet). I thought I read in the Sonoran Flora that L. novomexicana is supposed to have psoromic and/or lecanoric acid. But no doubt there are deficient specimens.

But this also looks off in other ways. While the shape of the thallus and lobes are right on for L. novomexicana (and indeed “normal” novomexicana was common in this location, and I have specimens to prove it), the apothecia of this specimen are this strange pale peach-orangish-yellowish without any pruina or hint of blackness/grayish which is typical of the species.

But certainly, there is no way this is L. garovaglii. I can say that much with confidence. In my notes I’ve called this L. cf. novomexicana, but MO doesn’t provide for “cf”, so low votes will just have to do.

By: J-Dar
2018-06-22 23:30:40 CDT (-0400)

Looks like novomexicana is a chemically diverse taxon!