Observation 220812: Ganoderma brownii (Murrill) Gilb.

When: 2015-10-26

Collection location: Caspar, California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

Specimen available

Growing on the ground, apparently on a root of an old, standing fir.
The large one was 15.7 cm across.
Could only dislodge the smaller fruit body which had white pores that discolored brownish when handled. The pores were small but not minute, ~ 3-4 per mm and tubes were shallow, 3mm deep max.
A KOH wash of the pores yielded brownish spores that were Ganoderma-like, double-walled with inner spines, the outer wall hyaline in KOH.
Spores ~ 8.5-12.0 X 5.5-7.0 microns.
Might be one of the common Ganodermas with a peculiar growth pattern??
The flesh was red-brown and turned blackish with 5% KOH.
KOH on the cap’s white portions turned yellow and then slowly orangy.
It had a odor which I could not identify.



Proposed Names

29% (1)
Recognized by sight
79% (1)
Recognized by sight: Spore size is a match. Ganoderma can take on odd growth when growing from roots.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
No one has commented yet.

Created: 2015-10-27 15:35:38 PDT (-0700)
Last modified: 2015-10-30 12:02:30 PDT (-0700)
Viewed: 58 times, last viewed: 2017-06-20 23:29:11 PDT (-0700)
Show Log