Observation 179095: Minutoexcipula mariana V. Atienza
When: 2013-11-08
(35.989° -75.67° 1m)

Notes: on Lecanora louisianae on bark of Prunus; mixed pine-hardwood forest near marsh; trail to sound

immersed in hymenium of host, conidia 1-septate bluish-gray truncate, conidiophore narrower and longer than conidia

Images

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20131108-32-10.jpg
section, in water, at 100x
457064
20131108-32-11.jpg
section, in water, at 400x

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Comments

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Yes, I think so
By: Jason Hollinger (jason)
2014-09-16 14:51:30 PDT (-0700)

There are a couple of superficially similar parasites which create little immersed pycnidia in the hymenia of Lecanora spp.. I’m not entirely sure I’m identifying them correctly. Minutoexcipula is one group, but see also Lichenoconium and Lichenodiplis… to name just two! One of the latter has tiny round simple conidia, the other, though, has similar 1-septate brownish conidia, just like Minutoexcipula. I remembering being a bit confused! :) There are also some with tiny semi-immersed black perithecia. The only source of anything like a comprehensive key is the Sonoran Lichen Flora. Outside that area, just pray that Paul Diederich is in a good mood. :)

Nice!
By: Christian (Christian Schwarz)
2014-09-16 14:44:35 PDT (-0700)

Does this or something like it occur on western Lecanora (or other lichens?)

Created: 2014-09-16 14:41:40 PDT (-0700)
Last modified: 2014-09-16 14:41:46 PDT (-0700)
Viewed: 28 times, last viewed: 2016-10-21 09:45:00 PDT (-0700)
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