Observation 100395: Cladonia P. Browne
When: 2012-07-14
Collection location: Sintra, Portugal [Click for map]
Who: zaca
No herbarium specimen

Proposed Names

3% (2)
Eye3
Based on chemical features: C-, K+ red, KC-.
28% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Squamules on “podetia”
By: Jason Hollinger (jason)
2012-07-17 06:20:46 BST (+0100)

This is not unusual for Cladonia at all. I am very confident that this is Cladonia. The spot test is confusing, though. I’ve seen fumarprotocetraric turn almost red in C. caespiticia. I’m wondering if it’s just really high concentration. That’s the “usual suspect” with Cladonia, anyway. Just wanted to rule out the yellow intermediate stage of, say, norstictic acid.

…Of course, as it turns out I can’t find a single species in British Flora which comes close, regardless of the chemistry! Would be fascinating to find out what it is.

Re: Clarification
By: zaca
2012-07-16 21:14:45 BST (+0100)

I think is more the second option, since I saw instantaneously the red reaction. I took photos, that are unfocused, but even so I upload them.
You are right, these photos are too bad. I just create this observation, because I’m not even sure that what we can see in the photos are “podetia”, it seems that they give rise to more squamules and not to fruiting bodies.

Clarification
By: Jason Hollinger (jason)
2012-07-16 19:16:34 BST (+0100)

Do you mean K+ yellow turning red, or K+ straight to red-brown, or maybe K+ red-violet? Are these podetia sorediate? It doesn’t look like they are, but it’s hard to tell from these photos.

Created: 2012-07-15 19:50:26 BST (+0100)
Last modified: 2012-07-17 06:21:13 BST (+0100)
Viewed: 18 times, last viewed: 2014-03-07 05:35:18 GMT (+0000)
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