2.ix.1991 Bruce Kuechman s.n. [J. E. Lindgren 91-35] (RET 084-2)
S. D. Russell et al., Purdue Univ.
The following text may make multiple use of each data field.
The field may contain magenta text presenting data from a type study
and/or revision of other original material cited in the protolog of the present taxon.
Macroscopic descriptions in magenta are a combination of data from the protolog and
additional observations made on the exiccata during revision of the cited original
The same field may also contain black text, which is data from a revision of the present
taxon (including non-type material and/or material not cited in the protolog).
Paragraphs of black text will be labeled if further subdivision of
this text is appropriate.
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 notes and
photographs of collectors; molecular research of
Dr. Linas V. Kudzma, and other original research of
35 - 60 mm wide, pale brown to dull brown, darker brown
over disc at first, hemispheric
when young, becoming convex with small umbo;
context thin, white;
margin tuberculate-striate (0.35R),
nonappendiculate; universal veil membranous,
white with rusty stains and gray underside; sometimes
free, white, with edges even or minutely fimbriate
(10× lens); lamellulae subattenuate,
sparse, irregularly distributed.
up to 110 mm × 10 mm (width measures at stipe
base), narrowing upward, whitish with brown "snakeskin"
pattern; context not described;
exannulate; universal veil as loose
saccate volval, white with rusty stains, with interior
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.