| name | Amanita hesleri |
| name status | nomen acceptum |
| author | Bas |
| english name | "Hesler's Lepidella" |
| images |
  1. Amanita hesleri, Mississippi, U.S.A. RET 502-9  2. Amanita hesleri, Mississippi, U.S.A RET 502-9.  3. Amanita hesleri, Lick Falls area, Sumter Nat. For., Rabun Co., South Carolina, U.S.A. RET 452-1 |
| cap |
The cap is 30 - 100 mm or more wide, white to pallid, convex to flat, with low, broad umbo or slightly depressed disk, dry, sometimes subviscid with age; context soft; margin smooth to slightly sulcate, floccose-appendiculate; universal veil as dense brown to dark brownish gray, low pyramidal warts, fibrillose, adnate, largest over disk (often confluent), becoming smaller (finally only small scales) and more scattered toward margin. |
| gills |
The gills are adnexed, crowded to rather crowded, white, sometimes becoming flesh pinkish, ventricose, up to 9 mm broad, with flocculose edge; the short gills are attenuate. |
| stem |
The stipe is 40 - 140 × 10 - 15 mm [with length including that of bulb], white, subcylindrical, pulverulent-flocculose in upper part to fibrillose-squamulose below; bulb slenderly clavate to slenderly fusiform, up to 30 mm wide; context white, unchanging when cut or bruised, soft, solid; partial veil lacking or sometimes as imperfect ring of slivers near apex; universal veil sometimes present as a few vague scales or warts just above bulb, whitish to gray, fibrillose. |
| spores |
The spores measure (8.5-) 9.5 - 12.5 (-16.1) × (4.8-) 5.1 - 6.5 (-7.8) µm and are ellipsoid to elongate to cylindric and amyloid. Clamps are absent from the bases of basidia. |
| discussion |
The odor and taste are weak or lacking. The present species occurs in mixed forests including oak and, at least sometimes, pine. The known range extends from North Carolina and Tennessee to Mississippi and Texas, U.S.A. Bas created stirps Hesleri containing the present species as its only member. Since 1969, three taxa have been discovered that seem likely to be assignable to stirps Hesleri: Amanita veldiei D. A. Reid & Eicker nom. inval. (South Africa); A. zangii Zhu L. Yang, T. H. Li & X. L. Wu (China and Japan); and an as yet undescribed species from Honduran forest.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita hesleri | ||||||||||||||||||||||||||||||||||||||||
| author | Bas. 1969. Persoonia 5: 370, figs. 66-70. | ||||||||||||||||||||||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||||||||||||||||||||||
| english name | "Hesler's Lepidella" | ||||||||||||||||||||||||||||||||||||||||
| MycoBank nos. | 308557 | ||||||||||||||||||||||||||||||||||||||||
| GenBank nos. |
Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
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| holotypes | NCU; fragments in L | ||||||||||||||||||||||||||||||||||||||||
| intro |
The following text may make multiple use of each data field. 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 not directly from the protolog of the present taxon is based on original research by R. E. Tulloss. | ||||||||||||||||||||||||||||||||||||||||
| pileus | 30 - 100 mm or more wide, white to pallid, convex to flat, with low, broad umbo or slightly depressed disk, dry, sometimes subviscid with age when wet; context white, 6 mm thick over stipe, soft; margin smooth to slightly sulcate, floccose-appendiculate; universal veil as dense brown to dark brownish gray, low pyramidal warts, fibrillose, adnate, largest over disk (often confluent), becoming smaller (finally only small scales) and more scattered toward margin. | ||||||||||||||||||||||||||||||||||||||||
| lamellae | adnexed, crowded to rather crowded, white, sometimes becoming flesh pinkish, ventricose, up to 9 mm broad, with flocculose edge; lamellulae attenuate. | ||||||||||||||||||||||||||||||||||||||||
| stipe | 40 - 140 × 7 - 15 mm [with length including that of bulb], white, subcylindric or tapering upward, pulverulent-flocculose in upper part to fibrillose-squamulose below; bulb slenderly clavate to slenderly fusiform, up to 30 mm wide, whitish to gray; context white, unchanging when cut or bruised, soft, solid; partial veil lacking or sometimes as imperfect ring of slivers near apex; universal veil brown (10YR 4/4), sometimes present as a few vague scales or warts or obscure concentric rings just above bulb, fibrillose. | ||||||||||||||||||||||||||||||||||||||||
| odor/taste | Odor of “an old sock” or weak; taste weak or lacking. | ||||||||||||||||||||||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||||||||||||||||||||||
| basidiospores |
From protolog (Bas 1969): [40/2/-] 10.5 - 12.5 × 5.5 - 7.0 μm, (Q = 1.5 - 2.0; Q = 1.8 - 1.9). composite of data from material revised by RET: [260/12/7] (8.5-) 9.5 - 12.5 (-16.1) × (4.8-) 5.1 - 6.5 (-7.8) µm, (L =( 10.0-) 10.4 - 11.1 µm; L’ = 10.7 µm; W = (5.4-) 5.5 - 6.1 µm; W’ = 5.9 µm; Q = (1.50-) 1.60 - 2.18 (-2.70); Q = 1.74 - 1.95 (-2.08); Q’ = 1.84), hyaline, colorless, smooth, thin-walled, amyloid, ellipsoid to elongate to cylindric, often adaxially flattened, occasionally expanded at one end; apiculus sublateral, cylindric, small to moderately broad; contents minutely granular to granular to subguttulate to multiguttulate; "probably white" (Bas, 1969) in deposit. | ||||||||||||||||||||||||||||||||||||||||
| ecology | Solitary to scattered to subgregarious, in forests. Mississippi: Under Pinus. North Carolina: ??. Tennessee: ??. Texas: In stream floodplain in hardwood forest. | ||||||||||||||||||||||||||||||||||||||||
| material examined |
Bas (1969): U.S.A.:
NORTH
CAROLINA—Orange Co. - Chapel Hill, Emerson
Farm, 28.ix.1923 W. C. Coker 7166 (holotype, NCU;
fragments in L n.v.).
TENNESSEE—Blount Co. - GSMNP, Cades Cove,
6.x.1957 L. R. Hesler 22694 (paratype, TENN n.v.;
fragments in L n.v.). Knox Co. -
Knoxville, 11.vii.1963 L. R. Hesler 25794
(paratype, TENN n.v.; L n.v.). RET: U.S.A.: ARKANSAS—Saline Co. - Pinecrest Cemetery on Hwy. 5 [34.6366º N/ 92.4767º W, 128 m], 29.viii.2018 Sandra Oxford Edwards s.n. [Justice NJJ18-296] (RET 866-3, nrITS & nrLSU seq'd.). LOUISIANA—East Baton Rouge Parish - Pride [30.6938º N/ 90.9782º W, 30 m], 12.x.2017 Logan Wiedenfeld s.n. [mushroompobserver #294203] (RET 802-4, nrITS & nrLSU seq'd.). MISSISSIPPI—George Co. - N of Pascagoula River Wildlife Management Area, Davis Dead River [30°54.139‘ N/ 88°44.563’ W, 35 m elev.], 9.vii.2012 Jay Justice s.n. (RET 502-9). Madison Co. - Natchez Trace Pkwy., 27.vi.1982 Dan Guravich 1489 (MICH). Perry Co. - Black Creek Wilderness Area, ca. Wiggins, 18.vii.1993 David P. Lewis & Steve Harsch s.n. (RET 109-2); Cypress Crk. Landing, 8.vii.1995 A. Norarevian s.n. (RET 155-1). SOUTH CAROLINA—Rabun Co. - Sumter Nat. For., Lick Log Falls area [34°55’36.04” N/ 83°09’29.47” W], 11.ix.2010 Tradd Cotter & Olga Katic s.n. (RET 452-1). TEXAS—Newton Co. - 1.6 km N of Bleakwood, off St. Hwy. 87, ca. D. P. Lewis residence [30°42.440' N/ 93°49.615' W, 30 m], 12.vi.1996 D. P. Lewis 5631 (F, n.v.; RET 283-8), 1.vii.1996 D. P. Lewis 5667 (F, n.v.; RET 283-9), 27.vii.1996 D. P. Lewis 5689 (F, n.v.; RET 283-10), 7.ix.1996 D. P. Lewis 5705 (F, n.v.; RET 284-1). | ||||||||||||||||||||||||||||||||||||||||
| discussion |
t.b.d. Lewis 5631 is immature and sterile. | ||||||||||||||||||||||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||||||||||||||||||||||
| editors | RET | ||||||||||||||||||||||||||||||||||||||||
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| name | Amanita hesleri |
| bottom links |
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| name | Amanita hesleri |
| bottom links |
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[ Keys & Checklists ] |
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.
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