Quiz #95: Fungus

Name the following hand-sized, multi-year-old fungus I found on a decaying Oak (Quercus sp.).

Photo of Quiz #95: Fungus (a)

Photo of Quiz #95: Fungus (b)

(Photographed in Kennebunkport, ME on 3/29/14.)

A. Birch Polypore

B. Artist Conk

C. Hemlock Reishi

D. Tinder Conk

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A is... incorrect. Birch Polypore (Piptoporus betulinus) fruiting bodies grow for only one season are are found on Birch (Betula spp.) trees.

B is... Correct! This is a fruiting body of Artist Conk (Ganoderma applanatum).  The tree was covered with many more of these hard shelves who were easy to spot from a distance.

C is... incorrect. Hemlock Reishi (Ganoderma tsugae) is closely related, but is typically red on top and grows on dead or dying conifers, especially on Eastern Hemlock (Tsuga canadensis).

D is... incorrect.  Tinder Conk (Fomes fomentarius) is typically hoof-shaped and most often grows on Birch trees (Betula spp.).

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