| name | Amanita sharkriverensis | ||||||||||||||||||||||||||||||||||||||||
| name status | nomen provisorum | ||||||||||||||||||||||||||||||||||||||||
| english name | Shark River Ringless Amanita | ||||||||||||||||||||||||||||||||||||||||
| synonyms |
double click in markup mode to edit. The editors of this site owe a great debt to Dr. Cornelis Bas whose famous cigar box files of Amanita nomenclatural information gathered over three or more decades were made available to RET for computerization and make up the lion's share of the nomenclatural information presented on this site. | ||||||||||||||||||||||||||||||||||||||||
| GenBank nos. |
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Showing 1 to 6 of 6 entries | ||||||||||||||||||||||||||||||||||||||||
| 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 is based on molecular studies by L. V. Kudzma with other orginal research by R. E. Tulloss. | ||||||||||||||||||||||||||||||||||||||||
| pileus | 45± mm wide, brown (ca. 2.5YR 4/2 or less red than 7E4), paler over disc, sometimes becoming paler overall on expansion, ovoid at first then subcampanulate, finally subplanar dull, tacky; context very pale brownish, unchanging when cut or bruised, 1.5± mm thick over stipe, thinning evenly for two-thirds radius, then membranous to margin; margin tuberculate striate (0.2 - 0.25R in young material), nonappendiculate; universal veil absent. | ||||||||||||||||||||||||||||||||||||||||
| lamellae | free, lacking decurrent line on stipe apex, crowded, off-white in mass, very pale brownish white in side view, unchanging when cut or bruised, 2 - 3.5 mm broad; lamellulae truncate, sometimes absent for 1/8 or 1/4 of the circumference, rather common. | ||||||||||||||||||||||||||||||||||||||||
| stipe | 42 × 7 mm, white, unchanging, narrowing upward, not flaring at apex, bearing fine white pulverulence; context very pale brownish white, unchanging, hollow, with central cylinder 2.5 mm wide, with insect tunnels concolorous to slightly browner; exannulate; universal veil saccate, with two main lobes, firmly membranous, with dry egg-shell texture on exterior, exterior white and having some brown stains and becoming more tannish with age, with edges of limbs soon gray and appearing to crumble, with interior surface browner from outset, with small limbus internus at line of attachment of stipe and volval limb. | ||||||||||||||||||||||||||||||||||||||||
| odor/taste | Odor lacking. Taste not recorded. | ||||||||||||||||||||||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||||||||||||||||||||||
| lamella edge tissue | sterile. | ||||||||||||||||||||||||||||||||||||||||
| basidiospores | [20/1/1] (8.4-) 9.1 - 11.2 (-14.3) × (8.4-) 9.1 - 10.8 (-13.3) μm, (L = 10.4 μm; W = 9.9 μm; Q = 1.0 - 1.10 (-1.14); Q = 1.04), thin-walled, smooth, inamyloid, globose to subglobose, ??, with giant spores sometimes present; apiculus sublateral, cylindric; contents ??; color in deposit not recorded. | ||||||||||||||||||||||||||||||||||||||||
| ecology | Solitary. New Jersey: In sandy loam or in sandy Pinus-Quercus barrens. Wisconsin: In forest dominated by Quercus. | ||||||||||||||||||||||||||||||||||||||||
| material examined | U.S.A.: ILLINOIS—Cook Co. - Chicago River Tr. [42.0244º N/ 87.8739º W, 195 m], 7.viii.2017 Turk Meyers s.n. (RET 810-3, nrITS seq'd.). MARYLAND—Harford Co. - Bel Air, Bynum Run Conservation Area [39.4997º N/ 76.2864º W, 14 m], 16.ix.2019 Ryan Pridgeon s.n. [MycoFlora 25854] [mushroomobserver #382744]] (RET 881-10, nrITS & nrLSU seq'd.). NEW JERSEY—Monmouth Co. - Roosevelt, 22 Lake Dr. [40.2138° N/ 74.4720° W, 47 m], 15.ix.1999 R. E. Tulloss 9-15-99-B (RET 300-6, nrITS seq'd.); Shark River Co. Pk. [40.305° N/ 74.0956° W, 16 m], 9.viii.1987 Raymond Fatto s.n. [Tulloss 8-9-87-F] (RET 180-10, nrITS seq'd.). PENNSYLVANIA—Allegheney Co. - McCandless Twp., North Pk., 21.ix.2013 unkn. coll. s.n. [WPMC Mycoflora #20130921-21] (RET 568-9, nrITS & nrLSU seq'd.). Luzerne Co- Harvey's Lake, 5.viii.2014 David Wasilewski s.n. [mushroomobserver 172750] (RET 655-2, nrITS-LSU seq'd.). WISCONSIN—Green Co. - Browntown Oak Forest State Natural Area [42.5880° N/ 89.7632° W, 293 m], 1.viii.2018 Andrew Khitson s.n. [mushroomobserver #325646] (RET 849-10, nrITS-LSU seq'd.). | ||||||||||||||||||||||||||||||||||||||||
| discussion | To date, this species is only known from Maryland, New Jersey, Pennsylvania, Wisconsin. Previously, on this site, this taxon has been called "A. sp-44 and "A. browntownensis." | ||||||||||||||||||||||||||||||||||||||||
| citations | —R. E. Tulloss & L. V. Kudzma | ||||||||||||||||||||||||||||||||||||||||
| editors | RET | ||||||||||||||||||||||||||||||||||||||||
Information to support the viewer in reading the content of "technical" tabs can be found here.
| name | Amanita sharkriverensis |
| name status | nomen provisorum |
| author | Tulloss & Kudzma |
| english name | Shark River Ringless Amanita |
| images |
 1. Amanita sp-44, Shark River Co. Pk., Monmouth Co., New Jersey, U.S.A. (RET 180-10) |
| photo |
RET - (1) Shark River County Park, Monmouth County,
New Jersey, U.S.A. (RET 180-10) Dave W - (2-3) Harvey’s Lake, Luzerne Co., Pennsylvania, U.S.A.(RET 655-2) [Note: Untrimmed and unedited images may be found at mushroomobserver.org/172750] Ryan Patrick - (4-6) Bynum Run Conservation Area, Bel Air, Maryland, U.S.A.(RET 881-10) [Note: Untrimmed and unedited images may be found at mushroomobserver.org/382744] Andrew Khitsun - (7-8) Browntown Oak Forest State Natural Area, Wisconsin, U.S.A.(RET 849-10) [Note: Untrimmed and unedited images may be found at mushroomobserver.org/325646] |
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.
Text and User-Generated Sporographs are published under the Creative Commons License.
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