Observation 157314: Laccaria Berk. & Broome

When: 2014-01-06

Collection location: McDowell Creek Falls County Park, Linn Co., Oregon, USA [Click for map]

Who: maynardjameskeenan

No specimen available

Proposed Names

15% (4)
Recognized by sight
18% (8)
Recognized by sight: thick flesh colored gills, orange/red brown cap, lined
-28% (3)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
G. alkalivirens
By: Terri Clements/Donna Fulton (pinonbistro)
2014-01-10 17:00:26 CET (+0100)

has close brown gills and according to M. Kuo : “This small, dark brown saprobe appears in northern and montane areas of North America, and can be recognized quickly if a drop of KOH or ammonia is applied to its cap, producing a green color change. But without the chemical test . . . well, you’re looking at a little brown mushroom with a white spore print and no distinctive odor or taste. In short, you may need to unpack your microscope.”

Brown spores on Phaeocollybia rule it out.
By: Terri Clements/Donna Fulton (pinonbistro)
2014-01-10 03:56:03 CET (+0100)

Gill color, thickness and placement rule out Gymnopus. Laccaria makes the most sense; according to M. Kuo: " There is evidence that at least some species of Laccaria may serve as pioneers in disturbed ground or de-forested areas that have recently begun the long road of ecological succession that leads, eventually, to a “mature” ecosystem. Thus, for example, several species of Laccaria are frequently found in young pine plantations." See: Kuo, M. (2010, December). The genus Laccaria. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/laccaria.html

By: Byrain
2014-01-08 21:09:16 CET (+0100)

The other observations on MO have a very pruinose stem & thin gills while this obs has a smooth stem & thick gills.

Gymnopus villosipes
By: Daniel B. Wheeler (Tuberale)
2014-01-08 20:14:44 CET (+0100)

as shown on MO has gray or gray-brown gills. This obs. has orange or lilac-orange gills. Also the gill pattern is not the same. Gymnopus villosipes has straight gills, this obs. has branched gills.

As do gymnopus.
By: maynardjameskeenan
2014-01-08 08:30:51 CET (+0100)
Laccaria have white spores.
By: Daniel B. Wheeler (Tuberale)
2014-01-08 05:30:43 CET (+0100)
White spored
By: Byrain
2014-01-08 03:34:47 CET (+0100)

This was reported as white spored here.


Maybe no trees,
By: Daniel B. Wheeler (Tuberale)
2014-01-07 07:35:40 CET (+0100)

but seedlings? Laccaria are among the most common mycorrhizal fungi around, and are especially common in nurseries.

BTW, the lines visible in the cap are called “striations.”

By: maynardjameskeenan
2014-01-07 04:00:22 CET (+0100)

No trees, they were growing in a clear cut, near a culvert by the side of the road, they were found growing out of woody debris.

trees in vicinity?
By: Terri Clements/Donna Fulton (pinonbistro)
2014-01-07 03:21:25 CET (+0100)

Created: 2014-01-07 02:01:28 CET (+0100)
Last modified: 2014-01-11 15:09:00 CET (+0100)
Viewed: 189 times, last viewed: 2017-06-18 03:14:02 CEST (+0200)
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