| name |
Amanita waterlooensis |
| author |
Tulloss, Kudzma & P. G. Harv. |
| name status |
nomen provisorum |
| english name |
"Waterloo Ringless Amanita" |
| GenBank nos. |
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|
| intro |
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
material.
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 postings, photographs,
and notes from the collector, molecular studies by Dr. Linas V. Kudzma
and other original research by RET. |
| pileus |
65 mm wide, gray with gray-brown disc, at first
hemispheric, dry, dull; context light cream,
unchanging, 7.5 mm thick at stipe, thinning gradually
(at least to the inner ends of striations;
margin tuberculate-striate (0.35 - 0.4R),
nonappendiculate; universal veil absent or as
scattered fragments of inner suface as thin small
patches over disc. |
| lamellae |
free without decurrent tooth, close, lignt cream in
mass, cream in side view, unchanging;
lamellulae ??, "evenly distributed." |
| stipe |
100 × 10 mm; context ?; exannulate;
universal veil as saccate volva, membranous to
submembranous, smooth, cream, lacking obvious layering,
3.5 mm × 22 mm. |
macrochemical
tests |
none recorded. |
| partial veil |
absent. |
| lamella edge tissue |
sterile. |
| anatomical figures |
|
| basidiospores |
[20/1/1] (9.4-) 9.6 - 10.9 (-11.4) × (7.5-)
7.8 - 9.0 μm, (L = 10.2 μm; W = 8.3 μm;
Q = (1.09-) 1.11 - 1.32 (-1.35); Q = 1.23);
hyaline, colorless, smooth,
thin-walled, broadly ellipsoid to ellipsoid, at least
somewhat adaxially flattened; apiculus
sublateral, cylindric to trucate conic; contents
granular to monoguttulate with or without additional
small granules; probably white in print. |
| ecology |
Illinois: At 211 m elev. In grassy area 10 m
from edge of Quercus-Carya woods. |
| material examined |
U.S.A.:
ILLINOIS—Monroe Co. - Waterloo [38.34° N/
90.15°W 211 m],
11.vi.2014 Patrick Harvey 2 [mushroomobserver
#167196]
(RET 622-1, nrITS & nrLSU seq'd.). |
| discussion |
The nrLSU 5' motif for this taxon is of the dominant
form in taxa of section Vaginatae. |
| citations |
—R. E. Tulloss and L. V. Kudzma |
| editors |
RET |
|
