Observation 68574: Phlyctis argena (Sprengel) Flotow

When: 2011-06-02

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

Who: zaca

No specimen available

This is a more or less perfect specimen: young, very regular and expanding, dividing the thallus into three zones – the center pale green colored and the oldest part of it, the zone of development green colored and the prothallus pale rose colored. At the same tree and away from my possibilities of observation (more than 2,5 m from the ground) other specimens were growing.
As I remembered Jason’s incredulity in face of the chemistry of the specimen considered in MO64669, this time I observed the evolution of the spot tests very carefully. These produced again
C-, K+yellow turning red, KC+red
and here is how I see these results:
The C- is a perfect negative reaction to C; K+yellow turning red developed during more than 1 minute; the KC+red in my opinion corresponds to the “freezing” of the K reaction, since there was no further evolution from the point were the C over K was applied.
After arrived home I search for photos of similar specimens, I found some really close, and I give the links in the references.

Proposed Names

87% (1)
Eye3 Eyes3
Based on chemical features: See attached photos.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2011-06-03 05:33:38 IST (+0530)
Last modified: 2011-06-03 05:37:04 IST (+0530)
Viewed: 85 times, last viewed: 2017-09-19 10:40:40 IST (+0530)
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