Evaluation of spore volumes indicates that 2-spore basidia were present; hence,
values above are probably high for an average mature specimen.
Removing the measurements representing the three largest spores from the data
would yield [17/1/1] (10.0-) 10.5 - 12.9 (-13.3) × 9.0 - 11.5 (-11.6) µm,
(L = 11.4 µm; W = 10.2 µm; Q = (1.03-) 1.05 - 1.21 (-1.29); Q = 1.12). If another collection of this material were found with mature fruiting bodies, their spores would probably produce summary data more like those provide in this paragraph.
—R. E. Tulloss
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can be found here.
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.