For the present, please the technical tab for this taxon.
—R. E. Tulloss and J. E. Lindgren
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The following material is based on J. E. Lindgren's notes and photograph and on original research of RET.
up to 106 mm wide, "muddy creamy yellow," planoconvex; contents up to 17 mm thick; margin ??; universal veil as scattered warts, white.
free, ??, white to cream with edges white and densely fimbriate; lamelluae truncate to rounded truncate, common to plentiful, of diverse lengths, infrequently arising near stipe rather than margin.
up to 73 × 26 mm, white(?), subcylindric, flaring at apex; bulb up to 31 × 37 mm, narrowing downward; context white, partially stuffed to hollow, with central cylinder occupying one-third or less of stipe width; partial veil thin and appressed to lower stipe; universal veil as robust short limb with triangular cross-section.
bilateral, divergent; wcs = 35 - 45 μm (poor rehydration); wst-near = 20 - 30 μn; wst-far = 40 - 45 μm; filamentous undifferentiated hyphae 2.0 - 4.0 μm wide, plentiful to dominant; inflated cells in subhymenial base intercalary, ovoid to ellipsoid to clavate (e.g.) 16.5 & 13.0 μm, occasionally in chains.
??, with basidia arising from ellipsoid and subglobose cells and slightly inflated short hyphal segments; clamps found about one cell away from basidial bases.
Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer;
and explanations prepared for this site talk about specimen-observer pairs associated with each data set.
Combining more data into a single data set is non-optimal because it obscures observer differences
(which may be valuable for instructional purposes, for example) and may obscure instances in which
a single collection inadvertently contains a mixture of taxa.