Observation 91713: Lecanora symmicta (Ach.) Ach.
When: 2012-03-27
No herbarium specimen

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Good question
By: Jason Hollinger (jason)
2012-04-04 11:46:08 PDT (-0700)

I agree with you completely on the yellow-fruited one. L. strobilina doesn’t ever do that color. But the others show at least some rimmed apothecia. This image is a good example:

In L. symmicta, young apothecia around the margin clearly have a thalline margin, but the older interior ones apparently have no rim at all. According to British Flora, the rim is “poorly developed, entire, soon excluded”. L. strobilina has entire to crenulate, ecorticate, finally excluded rim. Tricky, no? British Flora says under strobilina: “most likely to be mistaken for C- chemotypes of L. symmicta which are separable by the corticate thallus and exciple, less yellow color (usnic acid absent)…” May just need to see a closer image to check for cortex.

By: Andrew Khitsun (Andrew)
2012-04-03 19:12:25 PDT (-0700)

I feel the first photo is L.symmicta, and the left lichen in the second one is too. Are the rest L.strobilina?

Created: 2012-04-03 19:01:54 PDT (-0700)
Last modified: 2016-01-24 20:30:32 PST (-0800)
Viewed: 229 times, last viewed: 2016-07-07 02:34:00 PDT (-0700)
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