Bjerkandera fumosa (Pers.) P. Karst.
big smoky bracket
Phanerochaetaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
big smoky bracket
Phanerochaetaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Bjerkandera fumosa forms tough often overlapping semicircular caps on hardwood, with upper surface buff without zones, pore surface buff to smoky gray, and pale smoky gray tubes separated from the buff flesh by a dark line. At least in BC it is less common than B. adusta. The description is derived from Gilbertson(1) unless otherwise noted.
Odor:
anise-like when fresh (Lincoff)
Taste:
bitter, unpleasant, (Buczacki)
Microscopic:
spores 5-5.5 x 2-3.5 microns, short-cylindric, smooth, inamyloid, colorless; basidia 4-spored, 12-14 x 4-5 microns, clavate, with basal clamp; cystidia absent; hyphal system monomitic, context hyphae 3-7 microns wide, colorless in KOH, thin-walled to moderately thick-walled, often branched, with abundant clamp connections; tramal hyphae 2.5-3.5 microns wide, colorless in KOH, thin-walled, often branched, with abundant clamp connections, (Gilbertson), spores 5-6.5 x 2.5-3.5 microns, elliptic, smooth, inamyloid, colorless, (Breitenbach)
Spore Deposit:
white (Buczacki)
Notes:
Bjerkandera fumosa has been found in BC, WA, OR, ID, MB, ON, PE, PQ, AR, CA, DE, FL, IA, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NE, NJ, NY, OH, PA, TN, TX, VT, WI, and WV, (Gilbertson), and Europe and Asia, (Breitenbach).
Habitat and Range
SIMILAR SPECIES
Bjerkandera adusta is thinner and less wide, with a dark smoky gray pore surface, the thin buff context lacking a dark layer at base of the smoky gray tube layer [although Lincoff mentions such a layer, and color of tubes would still contrast with flesh], and has narrower spores, (Gilbertson)Habitat
annual, on dead hardwood, causes white rot of sapwood logs and stumps, (Gilbertson), on dead hardwood or damaged living hardwood trees, (Breitenbach), all year (Buczacki)
Status Information
Synonyms
Synonyms and Alternate Names:
Polyporus fumosus (Pers.) Fr.
Tremellodon gelatinosum (Scop.) Fr.