Observation 21424: Ganoderma applanatum (Pers.) Pat.
When: 2009-05-29
No herbarium specimen

Notes: Unidentified large polypore on a quaking aspen stump outside the main woods area. Pores on one shelf seem to have mostly sealed up. Lincoff has no exact matches for this fungus.

Proposed Names

28% (1)
Recognized by sight: or Piptoporus
54% (1)
Eyes3
Recognized by sight
28% (1)
Recognized by sight: Pore surface is circumscribed with a sterile white band.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Kuo says
By: Paul Derbyshire (Twizzler)
2009-05-31 15:40:16 COT (-0500)

“Cap: 5-75 cm (!) across; more or less fan-shaped, or irregular; with a dull, unvarnished, wrinkled (lumpy, furrowed, etc.) outer crust, often roughly arranged into “zones”; brownish to grayish brown."

Other than the whitish cap color, I’d say what I saw does look like G. applanatum though.

G. applanatum
By: Irene Andersson (irenea)
2009-05-31 15:09:41 COT (-0500)

gets brown on top when the spores are landing there (rusty brown).
Fomes fomentarius has white spores (mature in spring).

They can be hard to tell apart sometimes, but the pore layer is too white on this to be Fomes fomentarius. Compare with this instead: http://www.mushroomexpert.com/ganoderma_applanatum.html

Another detail – Fomes fomentarius doesn’t normally appear on quaking aspen, but Ganoderma applanatum is not uncommon on this particular tree.

Isn’t G. applanatum brown on top?
By: Paul Derbyshire (Twizzler)
2009-05-31 13:44:17 COT (-0500)
These
By: Paul Derbyshire (Twizzler)
2009-05-30 13:04:34 COT (-0500)

look very different from the hoof-shaped Fomes fomentarius of http://www.mushroomobserver.org/21401 and http://www.mushroomobserver.org/21394 (both taken within a couple miles of this observation) and the unzoned and softer-looking tops of Piptoporus. Are you sure?

Created: 2009-05-29 23:43:37 COT (-0500)
Last modified: 2015-02-26 11:54:30 COT (-0500)
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