Observation 151660: Armillaria (Fr.) Staude

When: 2013-11-10

Collection location: Old Edgebrook, Chicago, Illinois, USA [Click for map]

Who: T. Nelson

No specimen available

Growing in a cluster on an oak.


Proposed Names

18% (3)
Recognized by sight
-28% (1)
Recognized by sight: indistinguishable from A. gallica in the NE without mating studies.

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= Observer’s choice
= Current consensus


Add Comment
welcome to the confused club!
By: Debbie Viess (amanitarita)
2013-11-12 11:50:09 CST (-0500)

The best way to fool an identifier, and that includes both amateurs and professional mycologists, is to present yet another morpho manifestation of a honey mushroom for ID…they drive us ALL nuts!

Great information.
By: T. Nelson
2013-11-12 06:26:32 CST (-0500)

Very informative and helpful discussion. These mushrooms are so variable they really do drive an amateur like me a tad buggy. Thanks.

For sure
By: Rocky Houghtby
2013-11-11 21:21:45 CST (-0500)

It is more common on the ground. When gallica flushes big in the late summer here it carpets the forest floor! I’ve found it flushing on wood fairly frequently, often the primordia arise from thick black rhizomorphs. I wonder if it truly flushes from wood, or merely from the rhizomorphs.

which statement?
By: Debbie Viess (amanitarita)
2013-11-11 21:14:40 CST (-0500)

Gallica growing on the ground?

That’s what I was taught, but new knowledge constantly changes the picture, eh? Here is Kuo’s statement:

Armillaria gallica

by Michael Kuo

This honey mushroom is widely distributed east of the Rocky Mountains, and is typically found on the ground or near the bases of hardwoods.

By: Rocky Houghtby
2013-11-11 21:04:22 CST (-0500)

Do you have a source for that statement?

those darn honeys…
By: Debbie Viess (amanitarita)
2013-11-11 21:01:44 CST (-0500)

I can’t keep up!

But why wouldn’t such a successful mushroom switch modes/habitats now and again?

Not sure…
By: Jon Shaffer (watchcat)
2013-11-11 19:58:33 CST (-0500)

Found some A. gallica honey’s growing on wood today Debbie. I’ll MO post later but while asking around Stephen Russell told me they do grow on wood sometimes and wikipedia has a photo of some growing right out of the base of an oak tree. Jon

PS. I’ve always found them in/on the ground btw.

gallica grows on the ground, not on wood.
By: Debbie Viess (amanitarita)
2013-11-10 11:30:36 CST (-0500)