Polyporus brumalis Pers.: Fr.
winter polypore
Polyporaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
winter polypore
Polyporaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Species Information
Summary:
Features include 1) a bronze to purplish brown fruitbody with a ciliate margin, 2) radially elongated, diagonal, whitish pores, 3) a central stem, and 4) growth on hardwoods. It is common in the east but rare in the west, (Gilbertson). The online Species Fungorum, accessed September 3, 2018, gave the current name as Lentinus brumalis (Pers.) Zmitr., International Journal of Medicinal Mushrooms (Redding) 12(1): 88 (2010), but MycoBank gave that name as a synonym of Polyporus brumalis (Pers.) Fr.
Odor:
fungoid (Breitenbach)
Taste:
mild (Breitenbach)
Microscopic:
spores 6-7.5 x 2-2.5 microns, cylindric, slightly curved, smooth, inamyloid, colorless; basidia 4-spored, 16-22 x 5-6.5 microns, clavate, with basal clamp; cystidia absent; hyphae dimitic, generative hyphae of context 4-10 microns wide, colorless, thin-walled, with clamp connections, occasionally branched, binding hyphae of context with swellings up to 13 microns wide but mostly 4-10 microns wide, with dendritic branching and branches tapering to 1-2 microns wide, colorless, thick-walled, nonseptate, hyphae of trama 2.5-6 microns, similar, less frequently branched, (Gilbertson), spores 5-7 x 1.5-2.5 microns, cylindric to sausage-shaped, smooth, (Phillips)
Spore Deposit:
white (Phillips)
Notes:
Polyporus brumalis has been found in BC, WA, OR, ID, MB, NB, NS, NF, ON, PQ, SK, AR, CT, DE, IA, IN, KS, KY, MA, ME, MI, MN, MT, NH, NJ, NY, OH, PA, TN, VT, WI, and WV, (Gilbertson).
EDIBILITY
no (Phillips)
Habitat and Range
SIMILAR SPECIES
Polyporus arcularius has a generally paler cap and larger pores that are more elongated radially, and larger spores, (Gilbertson). Neofavolus alveolaris has a paler cap, more lateral stem, and larger pores and spores, (Gilbertson).Habitat
annual, on dead hardwood, associated with a white rot, (Gilbertson), on dead hardwood, especially birch, (Phillips), fall, winter, early spring (Buczacki)
Status Information
| Origin Status | Provincial Status | BC List (Red Blue List) | COSEWIC |
|---|---|---|---|
| Native | S3S4 (2021) | Yellow | Not Listed |
BC Ministry of Environment: BC Species and Ecosystems Explorer.
Synonyms
Synonyms and Alternate Names:
Annulohypoxylon multiforme "(Fr.) Y.M. Ju, J.D. Rogers "
Hypoxylon multiforme Fr.