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Observation 98632: Ganoderma P. Karst.

When: 2011-08-27

Collection location: Madera Canyon, Santa Rita Mountains, Pima Co., Arizona, USA [Click for map]


Who: Minh Nhân (Iván Rodríguez)

No specimen available

Found this collection of bracket fungus on a fallen tree away from a popular hiking trail. I could not get clear shots due to my camera’s fear of shady environments. The fungi were firmly attached to the fallen tree, and they do not seem to resemble Ganoderma tsugae which I initially suspected, but that’s up to discussion.


Top view.
Bottom view — note the spore print left on the bark.
Display of all the specimens on the fallen tree.

Proposed Names

-22% (3)
Used references: Mushrooms Demystified
-41% (3)
Used references: The Southwest group represents a distinct species.
-14% (2)
Recognized by sight: Looks like a conifer tree, probably Fir.
2% (2)
Recognized by sight
84% (1)
Recognized by sight: G. tsugae if on conifer; G. sessile or possibly G. polychromum if on hardwood
56% (1)
Recognized by sight: looks like oak to me
Used references: Found in Madera Canyon on oak by Dr. Vlasak

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= Observer’s choice
= Current consensus


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