Observation 165380: Ganoderma brownii (Murrill) Gilb.
When: 2014-05-16
No herbarium specimen

Notes: At the base of dead aspen at about 8000’ elevation. There were many of these at the bases of adjacent dead mature aspens in this area. According to the USDA Field Guide G. applanatum is found in almost all aspen stands in the SW and “Although there are other root decay fungi of aspen, G. applanatum is the most prominent and the only one that produces a tough woody-conk at ground line in live trees in the Southwest.” According to this reference the fungus can decay the major roots so severely that the tree will topple over—may be what happened to the tree in the second photo.

Images

420958
Layered tubes
420959
Two large conks at base of downed aspen
420960
Lumpy, azonate cap surface with white margin
420961
420962
White pore surface
420963
Brown flesh and tubes up to 1.5 cm

Proposed Names

1% (2)
Eye3
Recognized by sight: Gray brown ridged lumpy cap surface with white margin, brown woody flesh, layered tubes up to 15mm separated by brown tissue, white pore surface that is brown where scratched
Used references: Kuo, M. (2004, February). Ganoderma applanatum. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/ganoderma_applanatum.html and USDA Field Guide
Based on chemical features: KOH black on flesh and tubes

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2014-05-16 22:36:00 PDT (-0700)
Last modified: 2016-09-09 08:02:19 PDT (-0700)
Viewed: 52 times, last viewed: 2016-10-26 00:02:06 PDT (-0700)
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