Observation 43995: Rhizocarpon concentricum (Davies) Beltr.
When: 2009-04-15
No herbarium specimen

Notes: I put it under the scope but it just looked like a chip of black paint.

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Try adding KOH, waiting a bit, and squashing
By: Jason Hollinger (jason)
2010-04-06 10:42:08 CDT (-0400)

If it really is Rhizocarpon (and certainly could be), the apothecia will be pretty tough. You might need to do a proper section (several!) to have a prayer of seeing good asci with spores. But the squash prep is so easy it’s worth a try if you don’t have time for more!

Created: 2010-04-06 06:12:28 CDT (-0400)
Last modified: 2010-04-07 01:58:24 CDT (-0400)
Viewed: 102 times, last viewed: 2016-11-10 11:47:40 CST (-0500)
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