| name |
Amanita coprinopsoides |
| author |
Tulloss |
| name status |
nomen provisorum |
| english name |
Coprinopsis-like Ringless Amanita |
| etymology |
coprinopsis + -oides, like |
| GenBank nos. |
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|
| intro |
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
?? and original research
of R. E. Tulloss. |
| pileus |
gray, finely virgate, with low umbo in central
depression at maturity; context
??;
margin nonappendiculate, tuberculate striate
(0.35-0.45R); universal veil absent. |
| lamellae |
white; lamellulae
??probably truncate. |
| stipe |
white, somewhat sinuate, covered in lower two-thirds
with small white fibrils; context
??;
exannulate: universal veil as
saccate volva, membranous, white, firm. |
| odor/taste |
neither recorded. |
macrochemical
tests |
none recorded. |
| basidia |
? × ? μm, 4-sterigmate; clamps
probably rare or absent. |
| universal veil |
On pileus: absent. On stipe base:
??. |
| partial veil |
absent. |
| lamella edge tissue |
sterile. |
| basidiospores |
[40/2/2] (8.0-) 8.6 - 11.0 (-11.1) × (5.1-) 6.1 -8.0
(-9.5) μm, (L = 9.6 - 10.3 μm; L' =
10.0 μm; W = 6.9 -7.4 μm; W' = 7.2
μm; Q = (1.25-) 1.27 - 1.54 (-1.80);
Q = 1.40;
Q' = 1.40), colorless, hyaline,
smooth, thin-walled, inamyloid, adaxially flattened;
apiculus sublateral, cylindric; contents
granular to multiguttulate to monoguttulate with
additional small granules; white in deposit. |
| ecology |
Solitary or in small groups.
Alabama: Near small lake.
Texas: In mixed forest. |
| material examined |
U.S.A.:
ALABAMA—Unkn.
Co. - ca. border of Shelby and Jackson Cos.,
22.viii.1984 Cornelis Bas 9086 [Tulloss 8-22-84-P]
(L; RET 236-10, nrLSU, seq'd.).
NORTH CAROLINA—Wake Co. - Raleigh,
Umstead St. Pk. - 9.viii.2018 Geoff Balme s.n. (RET
874-4, nrITS-LSU seq'd.), (RET 874-8, nrITS-LSU
seq'd.).
TEXAS—Polk Co. - Big Thicket
National Preserve, Big Sandy Creek Tr. [30.6112° N/
94.6727° W, 80 m], 7.vi.2013 Ronald Pastorino 6-7-13U
[mushroomobserver
#136393]
(RET 538-4, nrLSU, seq'd.). |
| discussion |
The Alabama collection
was made by Dr. Cornelis Bas on a foray with RET
and Dr. David T. Jenkins in 1984. When Dr. Bas called our
attention to the fungus, he immediately said that it
should obviously be named "coprinoides."
That genus has since been divided into a number of
genera since that time; and we have picked the new
species epithet accordingly.
The Texas collection was made by Ronald Pastorino and
posted on mushroomobserver.org. The two
collections yielded nrLSU sequnces with a 1411 character
overlap that provides a 100% match. The Alabama
sequence has a single ambiguity. The Texas sequence
aligns as a subsequence of the Alabama one and has
no ambiguities.
Possibly due to nonhomogenized nrITS, we have not been
able to sequence more than a few characters of the 3'
end of ITS and a few dozen character including the
nrLSU 5' motif. The latter motif is of the
dominant form seen in section
Vaginatae—"TTTGACCTCAAATCA".
RET has contacted the herbarium
at Leiden (L) to see if any notes were made by
Dr. Bas on the Alabama collection. None were found. |
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite