Observation 318252: Circinaria arida

It is over soil as irregular shape cylinders and on small siliceous rock debris in semidesert



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Recognized by sight
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There is only 10-20% of this kind out of rock debris
By: Igor (Igor_Yevdokimov)
2018-06-16 22:11:21 CDT (-0500)

There is only 10-20% of this kind out of rock debris, but it is not much free place between rock fragments there. I did not found real branches, only short rounded cylinders

Good to be thinking of the fruticose species
By: Jason Hollinger (jason)
2018-06-16 11:12:07 CDT (-0500)

But it’s important to note that all species of Aspicilia, especially Circinaria arida more than most, will become quite fruticose when growing on soil. I see this form all the time on tiny pebbles in the desert of Nevada, USA.

You need to see elongate branches, not just very bullate areoles, before you can call an Aspicilia truly fruticose.

Certainly looks to be Aspicilia or Circinaria
By: J-Dar
2018-06-02 09:21:28 CDT (-0500)

Mostly pycnidia, so finding an apothecia and confirming 4 or 8 spores per ascus, and getting good IKI test might be difficult. Conidia length can also help narrow things down though.

Created: 2018-06-02 05:31:44 CDT (-0500)
Last modified: 2019-06-07 22:48:04 CDT (-0500)
Viewed: 65 times, last viewed: 2019-06-11 07:53:32 CDT (-0500)
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