Junghuhnia nitida (Fr.) Ryvarden
no common name

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi


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E-Flora BC Static Map

Distribution of Junghuhnia nitida
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Species Information

Features include flat growth on hardwood with ochraceous buff to pinkish cinnamon pore surface exposed, and microscopic characters including ovoid to broadly elliptic spores measuring 4.0-4.5 x 2.0-2.5 microns and abundant incrusted, thick-walled cystidia. It is common in eastern North America but rarely collected in the West, (Gilbertson).
faintly musty (Breitenbach)
mild (Gilbertson)
spores 4-4.5 x 2-2.5 microns, broadly elliptic to oval, smooth, inamyloid, colorless; basidia 4-spored, 10-13 x 4-5 microns, clavate, with basal clamp; cystidia abundant and conspicuous, "40-100 x 5-10 microns, completely imbedded or projecting to 30 microns", cylindric to clavate, thick-walled, heavily incrusted; hyphal system dimitic, subicular generative hyphae 2-4 microns wide, "thin-walled, with clamps, rarely branched", subicular skeletal hyphae 2-4 microns wide, colorless, "thick-walled, nonseptate, rarely branched", trama hyphae similar, (Gilbertson), spores 4-4.5 x 2-2.5 microns, elliptic to oval, smooth, inamyloid, colorless, with droplets; cystidia numerous, 20-50 x 8-10 microns, thick-walled, "rising out of the hymenium and some exserted", (Breitenbach)
Spore Deposit:
white (Buczacki)
Junghuhnia nitida has been found in BC, WA, OR, ID, MB, ON, PQ, NS, AL, AR, AZ, GA, IA, IN, KY, LA, MA, MD, ME, MI, MN, MS, NC, NH, NJ, NY, OH, PA, TN, VA, VT, and WI, (Gilbertson). It also occurs in Europe, Asia, and Africa, (Breitenbach).

Habitat and Range

Steccherinum ochraceum looks similar but has spinose surface under hand lens, (Breitenbach).
annual, on dead hardwood, causes a uniform white rot, (Gilbertson), on the underside of fallen dead hardwoods, (Breitenbach), on hardwoods, rarely on conifers, (Ginns), fall (Buczacki)


Synonyms and Alternate Names:
Cantharellus bonarii Morse
Gomphus bonarii (Morse) Singer
Polyporus nitidus Fr.
Poria eupora (P. Karst.) Cooke