Dyer’s Polypore or Velvet Top
Fruiting shelves grow extremely rapidly at the base of affected trees. Phaeolus is the cause of “cubical brown rot” – which cause the lower stem and roots of conifers to crumble into a jumble of dark brown cubes. This fungus is a major disease of Douglas Fir, destroying the valuable butt log.
On planted Monterey Pine
Black Hill, Morro Bay SP
12/30/12
Shelves grow rapidly and envelop nearby vegetation
MykoWeb page for Phaeolus schweinitzii
Wikipedia entry for Phaeolus schweinitzii
Mushroom Expert page for Phaeolus schweinitzii
Forest Service Manual describing Cubical Brown Rot.
San Luis Obispo Fungi 