| name |
Amanita amerirubescens |
| author |
Tulloss & K. W. Hughes |
| name status |
cryptonomen temporarium |
| 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 original research of R. E. Tulloss. |
| pileus |
?? mm wide, Cream Color at first, rounded conic at first; context white, with Vinaceous Russet staining in larval tunnels, ?? mm thick above stipe; margin nonappendiculate, ??; universal veil as friable warts, yellow to strongly yellow (recorded in materials annotated as juvenile as well as full maturity material), becoming Walnut Brown. |
| stipe |
?? mm, white at first, bruising Vinaceous Russet, sometimes becoming shaggy; bulb only apparent as slight basal swelling of stipe, ??; context ??, white, bruising as in pileus; partial veil ??, membranous, skirt-like, sometimes entirely white, ??, sometimes with underside yellow and remaining so in mature specimen, ??; universal veil ??. |
| odor/taste |
Odor lacking. Taste not recorded. |
macrochemical
tests |
none recorded. |
| subhymenium |
pseudoparenchymatous (cellular); ??. |
| basidia |
??; clamps not observed. |
| lamella edge tissue |
sterile. |
| basidiospores |
RET: [40/2/2] (6.8-) 7.8 - 9.5 (-11.6) × (5.0-) 5.6 - 6.6 (-7.2) μm, (L = 8.2 - 9.0 μm; L' = 8.6 μm; W = 5.8 - 6.0 μm; W' = 5.9 μm; Q = (1.27-) 1.31 - 1.69 (-1.78); Q = 1.37 - 1.56; Q' = 1.46), colorless, hyaline, thin-walled, smooth, inamyloid, ellipsoid to elongate, rarely broadly ellipsoid, usually adaxially flattened; apiculus sublateral, cylindric, small; contents granular or mono- or occasionally multiguttulate with or without additional small granules; color in deposit not recorded. |
| ecology |
Solitary. New Jersey: In typical Quercus-Pinus rigida barrens or in mixed deciduous forest (including Acer, Betula, Carpinus caroliniana, Carya ovata, Fagus grandifolia, Liquidambar styraciflua, and Quercus spp.). Rhode Island: In sandy soil of forest dominated by Pinus spp. and scrub Quercus spp. |
| material examined |
CANADA:
ONTARIO—Norfolk Co. - unkn. loc.,
2014 Eva Skific s.n.
(RET 639-5, nrITS & nrLSU seq'd.).
U.S.A.:
CONNECTICUT—Tolland Co. - Hebron,
The Hemlocks Nature Educ. Ctr. [41°37’11” N/
72°23’22” W], 1.ix.2013 COMA foray participant
s.n. [TFB 14343] (TENN
??, nrITS seq'd.).
MASSACHUSETTS—Dukes Co. - Tisbury,
Vineyard Haven, 13.viii.2014 William McAdoo s.n.
(RET 657-5, nrITS & nrLSU seq'd.).
NEW JERSEY—Mercer Co. - Washington
Crossing St. Pk. [40°18’00”N/74°52’03”W],
5.viii.1996 Britt Carlson & R. E. Tulloss
8-5-96-B (RET 230-3, juvenile–nrITS &
nrLSU seq'd.).
Monmouth Co. - Shark River Co. Pk., 19.viii.2011
Lilian K., Mary A., Owen C. & R. E.
Tulloss & Cristina Rodríguez Caycedo [Tulloss
8-19-11-D] (RET 485-7, nrITS seq'd.).
Warren Co. - Stephens St. Pk., lower picnic area,
4.viii.1996 Vinnie Tamurri s.n. [Tulloss 8-4-06-E]
(RET 228-10, nrITS & nrLSU seq'd.).
PENNSYLVANIA—Luzerne Co. -
Moon Lake Park [41.2530° N/ 76.0470° W, 240-400 m],
14.vii.2013 David Wasilewski s.n. [mushroomobserver
#140059]
(RET 550-1, nrITS & nrLSU seq'd).
RHODE ISLAND—Washington Co. - Exeter,
ca. Arcadia Wildlife Management Area [41.5776° N/
71.7095° W], 20.vii.2014 Linas V. Kudzma 14159 (in
herb. L. V. Kudzma, nrITS & nrLSU
seq'd.). |
| discussion |
This entity was formerly known as "A. sp-amerirubescens02" on this site.
This species has strongly yellow universal veil
material in young specimens and, at least sometimes,
at maturity. Sometimes, the underside of the
partial veil is yellow. Another somewhat
similar taxon with yellow on the partial veil is
A.
aureosubucula.
At the moment, the present taxon is segregated solely by its
nrITS and nrLSU sequences. In eastern North
America, compare
A.
flavorubens, A. rubescialba,
Amanita
submaculata,
A.
aureosubucula,
A.
aurantiorubescens, and
A.
sp-N47.
|
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite