Observation 134173: Fomitopsis officinalis (Vill.) Bondartsev & Singer
When: 2013-05-14

Notes: Found 3 of these growing near the base of conifers @ ~ 6000ft.
The largest was 16 cm wide, 10 cm deep and 6.5 cm high.
The pore area were relatively small(barely noticeable on one specimen) and confined to a portion of the edges. The undersides, which all were in contact with the ground, were covered with adhering fir needles.
The pores were creamy, ~ 3-4/mm, and slowly turned slightly brownish with handling.
The flesh was creamy and the tube layer on the largest was only 1 cm thick.
They were very tough and woody and difficult to cut.
The cap and flesh did turn a reddish to reddish brown color with KOH.
I couldn’t find any spores
They have some of the characteristics of Fomitopsis pinicola but also different in other ways. So far haven’t found a Fomitopsis species that fits?

Images

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Closeup of pore area.
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Cross section with tube and pore area on right.
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KOH on cap and flesh.
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Hyphae of tubes.

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Eye3 = Observer’s choice
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Created: 2013-05-21 18:10:41 EDT (-0400)
Last modified: 2013-05-22 05:57:39 EDT (-0400)
Viewed: 32 times, last viewed: 2015-12-18 03:10:00 EST (-0500)
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