wood decay genera

Fomitopsis cajanderi; "rosy conk"; causes reddish brown cubical rot of dead and down conifers; can caused a top rot of living conifers if these trees have an appropriate infection court; sporocarps are pileate and sessile to effuso-reflexed; porose hymenophore which is pinkish at first and bruises rosy-red.
Fomitopsis officinalis; "quinine conk"; left picture shows ungulate conk with whitish pileus and hymenophore; middle picture shows cracked, greyish pileal surface with annular ring-like growth; right picture shows brown cubical rot with mycelial felt; occurs on living conifers; sporocarps are formed on these conifers only after most of the heartwood has been decayed.
		Fomitopsis pinicola; 'red-bank conk'; when young sporocarps have a reddish to orange band (the one to the right has the entire surface this color); typically has a slightly yellowish, porose hymenophore; the transition between the pileal margin and the hymenophore is gradual and not as abrupt in Heterobasidion annosum; causes a light brown cubical rot of down, dead conifers; in our area this species is quite prevalent in forests below about 3000 feet.