Observation 113497: Lecanora Ach.

When: 2012-10-14

Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]

Who: zaca

No specimen available

This starts to become monotonous: Almost every time I see a Lecanora that consider interesting or showy, the chemical reactions are also interesting and showy!
Just look at the profusion of Lecanora with similar and non-standard chemical reactions for the genus, (I believe) not all of the same species, since there are morphological differences among them:
observation 113419;
observation 105272;
observation 105271;
observation 105273;
observation 105268;
observation 105266;
observation 95695;
observation 93703;
observation 72706;
observation 53944;
observation 51245.

Proposed Names

58% (1)
Eye3 Eyes3
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Always good to have a good memory!
By: Jason Hollinger (jason)
2012-10-15 16:20:23 PDT (-0700)

Still, for folks without, like me, you’ve recorded everything very nicely on MO. For that I am very thankful.

Yes, it seems to be out of …
By: zaca
2012-10-15 15:58:09 PDT (-0700)

my possibilities and capabilities.
I don´t have really good notes about these observations; most of the details are from memory, which is still working.

But my point is…
By: Jason Hollinger (jason)
2012-10-15 15:16:06 PDT (-0700)

That with that many species, there are bound to be many in any given region with weird chemistry, morphology, etc. These checklists just don’t suffice for genera like Lecanora. I don’t see how you’re going to make progress without access to experts, herbaria and/or much more extensive literature (and good equipment).

I wonder if you could get away with creating temporary names for these things, at least to help organize your growing list. It sounds like you’re keeping notes about them yourself, too, which is great.

Sorry to be negative, but this just seems to be the reality.

But the point is …
By: zaca
2012-10-15 14:49:13 PDT (-0700)

How many of these (214) Lecanora have these kind of chemical reactions? A dozen, maybe? Do they have a refuge in Portugal? (I knew already that is an extraordinary genus from the point of view of number of species).

I understand the frustration
By: Jason Hollinger (jason)
2012-10-15 14:20:18 PDT (-0700)

Note that this is the most diverse lichen genus, far and away. In North America (where I just happen to have the data ready at hand):

Lecanora – 214 species
Caloplaca – 163
Cladonia – 155
Arthonia – 146
Lecidea – 135
Verrucaria – 115
Rinodina – 106

Created: 2012-10-15 12:16:58 PDT (-0700)
Last modified: 2012-10-15 12:17:00 PDT (-0700)
Viewed: 30 times, last viewed: 2017-06-14 04:07:45 PDT (-0700)
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