Climacocystis borealis
Climacocystis borealis is a species of poroid fungus in the family Climacocystaceae.
Taxonomy
First described in 1821 by Swedish mycologist Elias Magnus Fries, it has since acquired an extensive synonymy of alternate scientific names. Until 2014, it was the sole member of the Climacocystis, a genus circumscribed by Czech mycologists František Kotlaba and Zdeněk Pouzar in 1958, when the newly described Chinese species Climacocystis montana was added to the genus.Description
Climacocystis borealis is both a saprophyte and a secondary pathogen that causes a heart rot in the roots and bole of host trees.The fruiting bodies attach directly to the wood, usually in single brackets but sometimes joined. The caps are whitish to yellowish, wide and thick, with no stipe. The whitish flesh is juicy closer to the margins. The spore print is white.