Observation 26469: Trichaptum biforme (Fr.) Ryvarden
When: 2009-10-09
No herbarium specimen

Notes: This rather extensive white crust was found on a rotting log. The surface was covered whit round bumps and the edges gave rise to thin shelves. Each shelf had concentric circles of low ridges and color zones from white to gray-brown. The edge of the shelf was very thin and scalloped and the upper surface somewhat hairy. The underside was covered with brown, flattened “teeth” except at the margins.

I thought this might be Irpex lacteus but was bothered by the crust surface being covered with round bumps rather than teeth. Would appreciuate opinions.

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Eye3
Recognized by sight

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Eye3 = Observer’s choice
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Created: 2009-10-09 07:32:59 PDT (-0700)
Last modified: 2009-10-09 07:32:59 PDT (-0700)
Viewed: 49 times, last viewed: 2016-03-22 12:38:55 PDT (-0700)
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