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 derived the collector's
notes and photograph and from other original research
of R. E. Tulloss.
76 mm wide, whitish, pale brown over disc; context white, 9.5 mm thick
above stipe; margin short striate; universal
veil apprently absent(?).
free to slightly adnexed, close, white;
178 × 12.5 mm, pallid, ornamented with gray
fibrils in lower half, with some brown staining
in upper half, narrowing upward, flaring
at apex; context stuffed;
exannulate; universal veil as
saccate membranous volva, white, persistent,
with cottony surface, 38 × 16 mm.
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.