Summary:
Features include a flat or shelf-like fruitbody that is light brown, becoming grayish to blackish, fine pores that are pale brown, mild taste, growth on dead hardwood, and microscopic characters. In North America it is common in eastern hardwood forests and occasional in western areas, and it is rare in central and southern Europe, USSR, and the Himalayas, (Gilbertson).

Microscopic:
spores 7-10 x 2.5-4 microns, cylindric and usually arcuate close to apiculus, inamyloid, colorless; basidia 25-40 x 7-10 microns, clavate, with basal clamp connection; cystidia none; hyphal system dimitic, generative hyphae 2-4 microns wide, with clamp connections, thin-walled to slightly thick-walled in the context, skeletal hyphae predominant, 2-5 microns wide, "semisolid to thick-walled, straight to sinuous, usually unbranched, occasionally more branched", "narrow binding hyphae rare, solid, much branched with short branches 2-3 microns wide, observed only in the context", (Gilbertson), spores 7-9.5 x 2.5-3.5 microns, cylindric-elliptic, smooth, inamyloid, colorless, (Breitenbach)

Notes:
Brunneoporus malicola has been collected twice from BC (Ginns). It has also been found in WA, AB, MB, ON, PQ, AZ, CT, IA, IL, IN, KY, LA, MD, MI, MN, MO, MS, MT, NC, NH, NJ, NY, OH, PA, SC, SD, TN, VT, WI, WV, WY, central and southern Europe, USSR, and the Himalayas, (Gilbertson).

Synonyms and Alternate Names:
Sarcosoma mexicanum (Ellis & Holw.) Paden & Tylutki