Observation 109865: Caloplaca Th. Fr.
When: 2012-09-15
Who: zaca
No herbarium specimen

Proposed Names

58% (1)
Eye3 Eyes3
Based on chemical features: K+ purple on apothecia and K- on thallus.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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New data and correction.
By: zaca
2012-09-18 10:41:28 PDT (-0700)

Previously I had written under “Based on chemical feature: K+ purple everywhere”, but this is not true and thus I corrected it. In fact, repeating the K test in a zone of the sample where there are no apothecia the reaction was K-. This was what I expected, since I was convinced that already observed this species (see, in particular, observation 106337). I also made the microscopy but I still was not able to find a correct name for it. The spores are polaricular with average dimensions of ~ Me = 12.1 × 5.7 µm ; Qe = 2.2 (N=14) with an isthmus that varies between 1/3 and 1/2 of the length.

Created: 2012-09-16 06:11:37 PDT (-0700)
Last modified: 2012-09-16 06:11:40 PDT (-0700)
Viewed: 29 times, last viewed: 2016-10-24 19:22:14 PDT (-0700)
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