Summary:
Mensularia radiata forms woody semicircular brackets with thin margins, on hardwoods, the upper surface zoned yellow brown to zoned red brown, felty then smooth and radially wrinkled, the pores pale yellowish brown becoming darker. Microscopic characters include monomitic hyphae and infrequent setae that are straight or hooked. It is common in eastern North America but rare in western North America, (Gilbertson).

Odor:
faint and sweet (Phillips)

Taste:
bitter (Phillips)

Microscopic:
spores 5-6.5 x 3-4.5 microns, narrowly elliptic to oval, smooth, individually pale yellowish in Melzer''s but appearing dextrinoid in mass, colorless or faintly yellowish; basidia 4-spored, 10-11 x 5-6 microns, broadly ellipsoid, simple-septate at base; hymenial setae infrequent but always present, usually not projecting or projecting only slightly beyond basidia, 14-35(50) x 7-12 microns, "mostly ventricose, often with a much swollen base, rarely subulate, thick-walled, straight or frequently hooked at the tip"; context hyphae 3-7 microns wide, pale yellowish in KOH, thin-walled to firm-walled, simple-septate, with rare branching, trama hyphae similar, 2.5-4 microns wide, (Gilbertson), spores 4.5-5.5 x 3.5-4.5 microns, broadly elliptic, smooth, inamyloid, slightly yellowish, (Breitenbach)

Spore Deposit:
yellowish (Phillips)

Notes:
Mensularia radiata has been found in BC, WA, OR, ID, ON, PQ, NB, NS, AK, CT, IL, MA, ME, MI, MO, MT, NC, NH, NJ, NY, PA, TN, VA, VT, and WI, (Gilbertson). It is known in BC from one collection (Ginns). It also occurs in Europe, Asia, and Australia, (Breitenbach).

EDIBILITY

no (Phillips)

Synonyms and Alternate Names:
Cyathipodia macropus (Pers.: Fr.) Dennis
Paxina subclavipes (W. Phillips & Ellis) Seaver