Climacodon septentrionalis, ’Northern Tooth Fungus’                  (4 Photos and Description)

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It is a parasite on the wounds of deciduous trees, especially sugar maple, beech and ash.  It can also fruit on standing dead trees. From a distance, Climacodon septentrionalis looks like it is a polypore growing in tiered layers, but its spore-brearing surfaces are actually ‘toothed’ having spines rather than pores. This fungus causes rot of the tree's heartwood.

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Younger specimen compared with the one in the top photo. Climacodon septentrionalis

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Climacodon septentrionalis

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