Observation 230666: Lecanora Ach.


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I’d say!
By: Jason Hollinger (jason)
2016-02-04 23:04:26 PST (-0800)

Looks like the breadth versus depth trade-off is tipped toward astonishing breadth in your case. :)

But yes, in this particular case, bleach is easy to come by, and it might be exactly what this Lecanora calls for. It should give a nice orangish reaction to a drop of bleach, apparently anywhere on the thallus or apothecia.

(And yes, there is something strange about bleach causing something to turn orange. Or red. Or even blue-green in the case of strepsilin! And it can be quite strong, e.g., in many Ochrolechia species.)

I might have to send you some KOH anyway. It would be oh-so-helpful in those cases where we are deciding between Candelaria or Candelariella and Caloplaca.

Together K and C will win the day 90% of the time. I’ve got a shipment of tiny 4 ml eye-dropper bottles coming in next week. I bet they’d be perfect for carrying around in your pocket.

Probably don’t have enough time
By: James Bailey (Silversea_Starsong)
2016-02-04 22:09:07 PST (-0800)

This is what a typical few hours in the field looks like: http://www.inaturalist.org/...

Evidently I spent time in too many natural areas as it is. I try and spare time on lichens I walk by, though :)

But if C is just bleach, that sounds easy. Are all spot tests on the thallus? What a weird selection of chemicals to drop on lichens.

That’s what your friendly neighbors at MO are for!
By: Jason Hollinger (jason)
2016-02-04 22:05:41 PST (-0800)

C is just straight-out-of-the-bottle household bleach. The others I’d be happy to send you. But I’ll admit it’s a slippery slope. There’s also the collecting of specimens (often on hard rock in your case!) or packing these caustic chemicals with you on your outings. Learning how to intepret them. It’s much easier to do tests under a dissecting microscope. And so on. It can turn into quite an ordeal. … But on the other hand it can really add to your enjoyment if that’s the way you swing!

Strobilina and confusa are on our list
By: James Bailey (Silversea_Starsong)
2016-02-04 21:50:55 PST (-0800)

but the strobilina record I think is the only record away from the east coast, going by the marker on CNALH.

I’m not really familiar enough with lichens to work with spot tests. Obviously there’s time and place for each spot test type and its a waste to dump them all on a lichen that obviously won’t react to it. Not that I know where you’d even get the chemicals to begin with anyway :)

L. confusa, that’s the name I was looking for
By: Jason Hollinger (jason)
2016-02-04 21:42:25 PST (-0800)

Isn’t that the west coast equivalent of L. strobilina? Yes, that’s the one I was thinking of for sure. Spot tests would help with both of these latest two observations considerably. Ready to take it up a notch yet? ;)

if Lecanora
By: James Bailey (Silversea_Starsong)
2016-02-04 21:21:42 PST (-0800)

Lecanora strobilina or confusa seems likely.

Created: 2016-02-04 20:41:42 PST (-0800)
Last modified: 2016-02-04 21:13:48 PST (-0800)
Viewed: 37 times, last viewed: 2017-06-21 11:14:08 PDT (-0700)
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