Observation 65300: Polyporaceae Fr. ex Corda
When: 2011-04-08
No herbarium specimen

Notes: On a dead cottonwood tree lying on the ground, barkless. Resupinate, growing underside, was barely visible before I flipped the tree.

Based on the look and staining of pores, this is almost certainly the same fungus as in observation 65116. Perhaps the pictures of the young fruiting bodies can help ID it with certainty?

Spores 12-14 × 4-5 microns.

Species Lists


Bruises where pressed with finger.
KOH on pores and “flesh”.
1000x, in KOH.

Proposed Names

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Add Comment
By: Danny Newman (myxomop)
2011-04-18 22:10:45 BST (+0100)

to this on account of this recent ob: http://mushroomobserver.org/65728

It won’t key out in the PNWKC polypore key (http://www.svims.ca/council/Polypo.htm) when taking into account the bright white pore surface of young specimens and near-immediate bruising where handled. All other aspects of C. gallica seem a match except for these two.

Here’s the much less hairy Hexagonia nitida (http://www.aranzadi-zientziak.org/...), some photos of which look promising minus the completely different cap surface. What’s more, IF indicates there’s been some crossover between Hexagonia and Coriolopsis over the years. Indeed, C. gallica was once H. gallica.

edit: I’m finding a recurring discrepancy between descriptions of the pore surface color and corresponding photos. Descriptions say grey to brown, photos occasionally show white. Even one of MycoBank’s accompanying photos on it’s own C. gallica page show a white pore surface:

The staining, however, remains a mystery.

Created: 2011-04-09 08:44:41 BST (+0100)
Last modified: 2012-09-08 10:01:42 BST (+0100)
Viewed: 203 times, last viewed: 2016-12-05 23:36:31 GMT (+0000)
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