Observation 65300: Coriolopsis gallica (Fr.) Ryvarden

When: 2011-04-08

Collection location: Sauvie Island, Multnomah Co. & Columbia Co., Oregon, USA [Click for map]

Who: Sava Krstic (sava)

No specimen available

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

28% (1)
Recognized by sight
40% (3)
Eye3 Eyes3
Recognized by sight
30% (2)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Brown bruising
By: Derek Ziomber (Space Time Matters)
2017-10-07 00:31:41 EDT (-0400)

Datronia mollis bruises brown, or at lest appears to bruise brown due to a light bloom on the pores that is easily removed. It does look like D. mollis, but the spores are too large according to what I can find (8-11×2.5-4microns for D. mollis). The other observation definitely looks more like Coriolopsis gallica asides from the staining.

By: Chaelthomas (Chaelthomas)
2017-06-27 20:21:00 EDT (-0400)

Thanks. Ill have a look sometime. Ive 95% of forest and linnton park but not sauvie island.

Willow Bar
By: Sava Krstic (sava)
2017-06-27 19:41:05 EDT (-0400)

I think the place is called Willow Bar, or Willow Park. There is a road there, off Reeder Rd, to the parking at the beach. Driving up on Reeder, I usually park just where that road begins and walk towards the beach in the straight line. These polypores were found at the place where you cross the meadow and get to the trees near the beach. Good luck!

Can the op
By: Chaelthomas (Chaelthomas)
2017-06-27 18:37:05 EDT (-0400)

Give details of where in sauvie island? I have found coriolopsis gallica in portland and the surrounding area by the water is all hardwood. Im not too far from that area and can possibly check it out.

By: Danny Newman (myxomop)
2011-04-18 17:10:45 EDT (-0400)

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 03:44:41 EDT (-0400)
Last modified: 2017-10-07 02:28:54 EDT (-0400)
Viewed: 332 times, last viewed: 2019-01-02 12:02:23 EST (-0500)
Show Log