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Observation 12385: Armillaria (Fr.) Staude

When: 2008-10-04

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

Who: Paul Derbyshire (Twizzler)

No specimen available

Large cespitose clusters of large brown ringed mushrooms on and near wood.

Armillaria mellea is my prime suspect at this point.

Three large clusters were seen, one very large cluster on a stump and two smaller ones on the ground close by.

First photo: Close-up of a mature mushroom from the stump shows brown cap and decurrent gills. Taken Oct. 9.

Second photo: The stump cluster on Oct. 4. The buttons could be mistaken for brown puffballs from a distance. I had the suspicion they were not, however, and made a point of revisiting on Oct. 9, when I saw …

Third photo: Same on Oct. 9. Clearly sizable brown gilled mushrooms.

Fourth photo: General area. Stump on left, two more mushroom clusters on right.

Fifth photo: One smaller cluster.

Sixth photo: The other smaller cluster.

Seventh photo: A close-up of some growing on the stump.

Eighth photo: A close-up of some growing in the second smaller cluster.

Ninth photo: I tried to pull the central mushroom in the eighth photo up. It wouldn’t come and wouldn’t come and then the whole damn cluster came up in one chunk. This is that cluster, dropped on the path and photographed.

Tenth photo: The uprooted cluster, close-up of ring and gills on one mushroom.

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