Observation 21322: Trichaptum biforme (Fr.) Ryvarden

When: 2009-05-25

Collection location: Forest near Elgin St., Pembroke, Ontario, Canada [Click for map]

Who: Paul Derbyshire (Twizzler)

No specimen available

White polypores on fallen deciduous log with peeling, grey bark in an area with Eastern White Pine (Pinus strobus), Paper Birch (Betula papyrifera), Quaking Aspen (Populus tremuloides), Red Maple (Acer rubrum), and unidentified woody trees and shrubs. One of these forms a stand of tall, thin trees similar to the aspen’s growth habit, has silvery leaves, and grey bark, and currently sports short spikes of white, 5-petal flowers. I couldn’t identify this tree, and its bark color is consistent with the log with the polypores, as is the maple and old enough birch and aspen.

White, roughish, slightly zoned caps, in overlapping shingle-like colonies. Pore surface brown, ragged, with small and regular pores only near the point of attachment. Size to 3cm.

Proposed Names

2% (3)
Recognized by sight
60% (2)
Eye3 Eyes3
Recognized by sight: These are old and faded.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2009-05-26 01:32:21 CDT (-0400)
Last modified: 2016-10-02 22:41:34 CDT (-0400)
Viewed: 160 times, last viewed: 2017-11-10 08:08:07 CST (-0500)
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