Amanita sp-amerirubescens02 - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella

name

Amanita sp-amerirubescens02

author

Tulloss & K. W. Hughes

name status

cryptonomen temporarium

GenBank nos.

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accession	locus	voucher	source
HQ539946	mtSSU	6.vii.1991 E. Sesli 110 (RET 122-8)	B. Wolfe et al., Pringle Lab., Harvard
HQ540046	mtLSU	6.vii.1991 E. Sesli 110 (RET 122-8)	B. Wolfe et al., Pringle Lab., Harvard
HQ539839	nrSSU	6.vii.1991 E. Sesli 110 (RET 122-8)	B. Wolfe et al., Pringle Lab., Harvard
HQ539735	nrLSU	6.vii.1991 E. Sesli 110 (RET 122-8)	B. Wolfe et al., Pringle Lab., Harvard

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 DNA sequencing from the laboratory of Dr. K. W. Hughes, additional sequencing from the laboratory of Dr. L. V. Kudzma, and other original research of R. E. Tulloss.

pileus

62^± mm wide, pinkish buff to pale tan to cream-tan to cream, quickly staining brownish red, subovoid to campanulate at first, then convex, ??; context ca. 9 mm thick above stipe, ??

lamellae

whitish, ??; lamellulae ??.

stipe

96^± × 9^± mm, white at first becoming reddish brown after handling; bulb 18^± × 19^± mm, ??; context ??; partial veil superior, ??; universal veil detersile, easily lost in substrate or surface litter.

macrochemical
tests

none recorded.

basidia

26 - 36 ×: 9.2 - 10.3 μm, 4-sterigmate, with sterigmata up to ?? × ?? μm; clamps not observed.

lamella edge tissue

sterile.

basidiospores

send to graphing tool

CRC/RET: [170/7/7] (7.1-) 7.7 - 10.2 (-11.5) × (5.0-) 5.5 - 7.1 (-8.0) μm, (L = 8.0 - 9.3 μm; L' = 8.7 μm; W = 5.7 - 6.8 μm; W = 6.2 μm; Q = (1.13-) 1.22 - 1.61 (-1.81); Q = 1.27 - 1.54; Q' = 1.41), hyaline, colorless, thin-walled, smooth, amyloid, broadly ellipsoid to ellipsoid, infrequently elongate, rarely pyriform, adaxially flattened; apiculus sublateral, cylindric, often proportionately small; contents mono- to multiguttulate, with or without additional small granules; color in deposit not recorded.

ecology

Solitary to gregarious. At 18 to 945 m elev. Isl. of Newfoundland, Canada: in mixed woods dominated by conifers. Florida: In sandy soil in mixed woods with Quercus, 3-needle Pinus, and "fan palms." Maine: Under Abies balsamea in forest including Tsuga canadensis and "White Cedar." New Jersey: in deep sandy soil of typical Pinus rigida-Quercus barrens after plentiful rains. Pennsylvania: At ca. 500 m elev. In mixed forest of hardwoods, Picea, Pinus, and T. canadensis. Texas: In sandy soil of "slope forest" and other forests of mixed Pinus and hardwoods. Virginia: In grass in pure stand of Pinus taeda.

material examined

CANADA: NEWFOUNDLAND & LABRADOR—Isl. of Newfoundland - GMNP, lower Green Gardens Tr., 21.viii.2003 A. Voitk #4 (in herb. A. Voitk; RET 368-10, nrITS & nrLSU seq'd.). ONTARIO—Norfolk Co. - Port Dover [42.7863° N/ 80.198° W, 182 m], 3.viii.2014 Eva Skific s.n. (RET 639-6, nrITS & nrLSU seq'd.). TURKEY: Trabzon—Macka, 6.vii.1991 Erteĝru Sesli 110 (RET 122-8, nrSLU, nrSSU, mtLSU & mtSSU seq'd.). U.S.A.: CONNECTICUT—Middlesex Co. - Devil's Hopyard St. Pk. [41.4756° N/ 72.3403° W, 72 m], 4.ix.2011 C. Rodríguez Caycedo 9-4-11-J (RET 492-2); Salmon River St. For. (South) [41°32’57” N/ 72°27’05” W], 30.viii.1997 COMA foray participant s.n. [Tulloss 8-30-97-B] (RET 269-1, nrITS & nrLSU seq'd.). FLORIDA—Putnam Co. - Welaka, Welaka St. For., Mud Springs Nature Trail [29°28'N / 81°39' W], 11.xii.1996 Sandy Sheine s.n. (RET 257-6, nrITS & nrLSU seq'd.). INDIANA—Montgomery Co. - Waveland, Shades St. Pk. [39.9378° N/ 87.0894° W, 223 m], 28.viii.2012 Stephen Russell 3634 [mushroomobserver.org #107641] (RET 531-1, nrITS & NRLSU seq'd.). MAINE—Washington Co. - Pembroke [44.9456° N/ 67.17875° W, 20 m], 19.vii.2013 Teresa Clements TAC99 [mushroomobesrver #140446] (RET 554-6, nrITS & nrLSU seq'd.). MISSOURI—Lincoln Co. - Cuivre River St. Pk. [38.03° N/ 90.93° W, 330 m], 29.vi.2013 Patrick Harvey s.n. [mushroomobserver #138025] (RET 545-6, nrITS & nrLSU seq'd.). NEW JERSEY—Burlington Co. - Brendan T. Byrne (aka Lebanon) St. For., 13.x.2014 Linas V. Kudzma LVK14457 (in herb. Kudzma nrITS seq'd.); Brendan T. Byrne St. For., ca. Pakim Pond, Batona tr., 2.viii.2013 Naomi Goldman & Ricky Resciniti s.n. (RET 557-4, nrITS & nrLSU seq'd.). Monmouth Co. - Roosevelt, S. Valley Rd., bike path, 24.vi.2013 N. Goldman & R. Resciniti s.n. [Tulloss 6-24-13-A] (RET 539-4, nrITS & nrLSU seq'd.). Middlesex Co. - Jamesburgh, ca. Helmetta, Jamesburg Co. Pk. [40.3853° N/ 74.43° W, 19 m], 21.viii.1993 Mary A., Sarah E. K. & R. E. Tulloss 8-21-93-G (RET 096-10, nrITS seq'd.), 24.vii.1996 Britt Carlson & R. E. Tulloss 7-24-96-G (RET 200-2, nrITS seq'd.). NEW YORK—Oneida Co. - unkn. loc., 20.vii.2013 Eric Smith s.n. [mushroomobserver #139474] (RET 596-4, nrITS & nrLSU seq'd.). PENNSYLVANIA—Lackawana Co. - Lackawanna St. For., Thornhurst [41.1911° N/ 75.6095° W, 502m], 19.vii.2013 David Wasilewski s.n. [mushroomobserver #140437], (RET 569-2, nrITS & nrLSU seq'd.). Pike Co. - Lord's Valley, 800 Peyton Place [41.3398° N/ 75.0646° W, 417 m], 14.vii.2014 R. E. Tulloss 7-14-14-A (RET 625-3, nrITS seq'd.). TENNESSEE—Sevier Co. - GSMNP, ca. Gatlinburg, Grotto Falls trailhead [35.6752° N/83.4858° W, 780 m], 12.vii.2004 Dr. Roy E. Halling s.n. [Tulloss 7-12-04-U] (RET 375-7, nrITS & nrLSU seq'd.). TEXAS—Hardin Co. - Big Thicket National Preserve, Lance Rosier Unit, along Cotton Rd., 3.x.2009 David P. Lewis 9370 (RET 461-8, nrITS & nrLSU seq'd.). Newton Co. - Bleakwood, Co. Rd. 3062, Lewis prop. [30°42.509’ N/ 93°49.630’ W], 29.ix.2009 D. P. Lewis 9333 (RET 462-3, nrITS & nrLSU seq'd.). VIRGINIA—Lancaster Co. - Weems, Beechwood Dr. & St. Rte. 222, 5.viii.1997 E. H., J. C., M. A., S. E. K. & R. E. Tulloss 8-5-97-A (RET 262-10, nrITS & nrLSU seq'd.).

discussion

The presently known range of this species in eastern North America extends from the Island of Newfoundland to Florida and eastern Texas.

In nearly all the material examined, either the hymenium was entirely immature or large parts of the hymenium from approximately the middle of the gill (measured radially with respect to the cap) were immature. Hence, most of the material observed was, at the time of drying, not at its maturity. As a consequence, we suggest that material not be dried until it has demonstrated the maturity of the fruiting body by the production of a spore print.

The material of Tulloss 7-12-04-U had the shortest values of length, Q, L, and Q of any specimen examined although the spore width was close to average. This is typically the case of amanitas that are past prime sporulation. After this point spore length (and, consequently, the value of Q) drops faster than width—the spores become "rounder." This is our interpretation of what happened with Tulloss 7-12-04-U.

At the moment, this taxon is segregated solely by its nrITS and nrLSU sequences. In eastern North America, compare A. flavorubens, A. rubescens var. alba, Amanita submaculata, A. aureosubucula, A. sp-amerirubescens04, A. sp-amerirubescens05, A. sp-amerirubescens07, A. ostendemihi, and A. sp-N47.

Special attention should be given to Amanita brunneolocularis because, based on molecular studies, this may be the correct name of the present species. Sporograph comparisons with some of the above taxa follow:

The taxa with temporary code names of the form "sp-amerirubescnes0X" (where "X" is an integer) were originally treated on this site as a single taxon "Amanita amerirubescens." The latter taxon page is maintained on the site and references collections still not divided among the temporary code names.

citations

—R. E. Tulloss and C. Rodríguez Caycedo

editors

RET

Information to support the viewer in reading the content of "technical" tabs can be found here.

Spore data for collections
provisionally identified as: Amanita sp-amerirubescens02 Tulloss & K. W. Hughes

Spore data sets and their composite

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.

basidiospore definition

Spore Measurements by Collection

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name	Amanita sp-amerirubescens02
name status	cryptonomen temporarium
author	Tulloss & K. W. Hughes
images	1. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 2. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 3. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 4. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 5. Amanita sp-amerirubescens02, Oneida Co., New York, U.S.A. RET 596-4 6. Amanita sp-amerirubescens02, Lackawanna St. Pk., Lackawanna Co., Pennsylvania, U.S.A. RET 569-2 7. Amanita sp-amerirubescens02, Port Dover, Norfolk Co., Ontario, Canada. RET 639-6
intro	For the time being, please see the technical tab for this taxon page.
discussion	The known range of this species extends from the Island of Newfoundland to Florida and eastern Texas. It has apparently been transported to Turkey in a Pine (Pinus) plantation (RET 122-8).—R. E. Tulloss
brief editors	RET

name	Amanita sp-amerirubescens02
name status	cryptonomen temporarium
author	Tulloss & K. W. Hughes
images	1. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 2. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 3. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 4. Amanita sp-amerirubescens02, Pembroke, Washington Co., Maine, U.S.A. RET 554-6 5. Amanita sp-amerirubescens02, Oneida Co., New York, U.S.A. RET 596-4 6. Amanita sp-amerirubescens02, Lackawanna St. Pk., Lackawanna Co., Pennsylvania, U.S.A. RET 569-2 7. Amanita sp-amerirubescens02, Port Dover, Norfolk Co., Ontario, Canada. RET 639-6
photo	Teresa Clements - (1-4, backgound) Pembroke, washington County, Maine, U.S.A. (RET 554-6). [Note: For additional images and images in original format see mushroomobserver.org here.] Eric Smith - (5) Oneida County, New York, U.S.A. (RET 596-4). [Note: To see this image in original format see mushroomobserver.org here.] David Wasilewski - (6) Lackawanna State Park, Lackawanna County, Pennsylvania, U.S.A. (RET 569-2). [Note: For additional images and images in original format see mushroomobserver.org here.] Eva Skific - (7) Port Dover, Norfolk Co., Ontario, Canada. RET 639-6. [Note: For additional images and images in original format see mushroomobserver.org here.]