Observation 51245: Lecanora Ach.
When: 2010-08-17
Who: zaca
No herbarium specimen

Notes: In my most recent field trips I have encountered many species of Lacanora growing on trees. Many of them are very similar and therefore difficult to classify. However, some of them exhibit peculiarities which perhaps will permit to have some idea of their classification. The specimen in this observation has several distinctive features, the most striking being
- K + red reaction;
but there are others, such as:
- Thallus with areas of tone pink and other color of the wine, with residues of an imersed green alga;
- Wine-colored apothecia with a slightly white pruina;
- Margins of apothecia white but stained burgundy.
Despite these characteristics I was unable to find the sites I consulted in this regard anything similar, starting with the K + red reaction that seems unusual. In this respect the most similar I could find was L. albella var. albella with K+ yellow or + yellow turning red reaction, but the other characteristics don’t match (see here).

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Created: 2010-08-24 12:02:39 CDT (-0400)
Last modified: 2010-08-24 12:09:19 CDT (-0400)
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