Olive text indicates a specimen that has not been
thoroughly examined (for example, for microscopic details) and marks other places in the text
where data is missing or uncertain.
The following material is based on original research of R. E. Tulloss.
—R. E. Tulloss
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30± mm wide as dried, grayish brown fresh [pale brown, close to clay or yellowish brown (5D5) as dried], apparently hemispheric, shiny as dried; context ?; margin striate (0.3R as dried), nonappendiculate, possibly incurved at first; universal veil absent.
free, close, white (as dried, paler and yellower than pileus), probably rather narrow; lamellulae truncate to subattenuate.
61 × 4 mm as dried, undecorated, concolorous as dried; context ?; exannulate; universal veil as saccate volva, white, membranous, with tip of limb up to 18 mm from base as dried.
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.