The spores of this species measure (9.8-) 10.2 - 12.0 (-12.8) × (8.8-) 9.0 - 10.2 (-10.5) µm and are subglobose to broadly ellipsoid and inamyloid. Clamps are probably absent from bases of basidia.
—R. E. Tulloss
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The following text is based on original research of R. E. Tulloss.
60 mm wide, gray with some brownish tint, darkest over disk, virgate, unchanging when cut or bruised, planoconvex, umbonate, tacky, dull; context white with watery line above the lamellae, unchanging when cut or bruised, 4.5 mm thick at stipe, thinning evenly for three quarters of the radius, then a membrane to margin; margin striate (0.25R), nonappendiculate; universal veil absent.
free, without decurrent line on stipe apex, subcrowded to crowded, dingy cream in mass, cream in side view, 4.5 mm broad; lamellulae truncate, unevenly distributed, there are ten or more lamellae in a sector with no lamellulae.
135 × 9 mm, cream above, somewhat dingy below, becoming grayish from handling, narrowing upward, barely flaring at apex, finely longitudinally striate below, with cream pulverulence in upper 20%; context off-white, unchanging when cut or bruised, hollow, with 5 mm wide central cylinder; exannulate; universal veil not collected.
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and explanations prepared for this site talk about specimen-observer pairs associated with each data set.
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a single collection inadvertently contains a mixture of taxa.