Collection location: Turnbull National Wildlife Refuge, Spokane Co., Washington, USA [Click for map]
47.0° 117.0° 707m
Substrate: basalt rock.
Habitat: Ponderosa pine meadow, wetland, aspen community ecotone.
Notes: NE side of rock face, 7 inches above soil line, exposed.
This was amongst a collection of Umbilicaria hyperborea observation 96209 and looks very similar (postulate ridged surface, similar pruinose tan underside, but lacks the fissured apothecia of U. hyperborea); assuming it is U. hyperborea except the apothecia-like buttons on the upper cortex are odd — when wet they look gummy and orange-reddiish, <1mm; cross section does not look like ascomata structure, can’t seem to find any asci formation, or any coherent structure (not to say that there isn’t one, maybe section too thick or I’m just not seeing it) except that the hyphae in that section is much more dense than the medulary hyphae, and there is an outer cortex across the top, no ostioles seen. No photobiont cells found on the interior of those structures. Not sure what these structures are. When dry these structures look black. There are no fissured apothecia characteristic of U. hyperborea on this specimen.
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I just lower the intensity of the illuminator to improve contrast. You should be able to see spores and asci clearly even at 400×.
went from 100x-1000x on one section.
Is there a stain you would use?
Oh, or maybe a parasite? They just seem to regular to be something accidental…
I’ve never seen anything like it.
sure don’t look like pycnidia or perithecia… no ostiole from what I can see, and the structures on the inside look all haphazard, not orderly, I’ll take a thinner slice, maybe that’ll help. Thanks Jason :)
Created: 2012-06-03 18:48:19 AEST (+1000)
Last modified: 2012-06-03 19:01:05 AEST (+1000)
Viewed: 54 times, last viewed: 2017-06-13 16:49:02 AEST (+1000)