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Species Information
Summary: Features include a yellow-brown pore surface growing flat on wood, small pores, and microscopic characters including setae in the spore-bearing surface. The description is derived from Gilbertson(1) except where noted.
Fuscoporia ferrea has been found in BC, WA, OR, ID, AB, NB, NF, NS, PE, SK, AK, CA, FL, MD, MT, NT, NY, PA, TN, VA, and WV, (Gilbertson)
Cap: up to 23cm across, growing flat on wood with pore surface exposed, woody, not readily separable; margin fertile or narrowly sterile and then up to 0.2cm wide, yellowish brown, tomentose
Flesh: up to 0.1cm, corky; not zoned, yellowish brown
Pores: 6-7 per mm, circular, with thick walls, yellowish brown; often cracking extensively; tube layers indistinctly stratified, each layer up to 1cm thick, colored as flesh and continuous with it
Odor: indistinct (Buczacki)
Taste: indistinct (Buczacki)
Microscopic: spores 5-7.5 x 2-2.5 microns, cylindric, smooth, inamyloid, colorless; basidia 4-spored, 12-14 x 5-6 microns, clavate, simple-septate at base; setae abundant, 22-29 x 6-7 microns, subulate [awl-shaped] to slightly ventricose, brown in KOH, thick-walled; hyphae in context 2-4.5 microns wide, dark brown to almost colorless in KOH; thick-walled or thin-walled, with rare branching, rarely simple-septate; hyphae of trama similar
Spore Deposit: white (Buczacki)
Habitat / Range
perennial, on dead wood of conifers and hardwoods, associated with uniform white rot, (Gilbertson), all year (Buczacki)
Similar Species
Fuscoporia ferruginosa "has shorter spores and usually has setal hyphae in the marginal and context tissue", (Gilbertson). F. ferruginosa has a reddish brown pore surface, broader spores (3.0-3.5 microns wide), longer setae (up to 65 microns long), and typically, "setal hyphae in the margin and contest", (Ginns).
