Amanita sp-Hesler-22051

name	Amanita sp-Hesler-22051
name status	cryptonomen temporarium
author	Tulloss
images	1. Amanita arkansana, North Carolina, U.S.A.
intro	The monochrome photograph and a brief description are all the supporting macroscopic evidence that has been found for Dr. R. Hesler's number 22051 (TENN), which is described on this taxon page.
cap	The cap of this species was described as "fulvous" by the collector.
gills	The gills are described as white. Short gills were found to be infrequent in the dried material.
stem	The surface of the stem and the partial veil were described as white. The lower portion of the stem is said to be tinted "fulvous."
odor/taste	There is no record of the odor or taste of this mushroom.
spores	The spores of this species measure (9.6-) 9.9 - 14.0 (-14.5) × (6.8-) 6.9 - 8.5 (-8.0) μm and are ellipsoid to elongate and inamyloid. Clamps are rather common at bases of basidia.
discussion	RET is convinced that the collection of Hesler placed here temporarily is not Amanita arkansana. The presence of giant spores on the hymenium makes the determination more difficult than would otherwise be the case. The volval sac is atypically large for A. banningiana.—R. E. Tulloss
brief editors	RET

name

Amanita sp-Hesler-22051

author

Tulloss

name status

cryptonomen temporarium

GenBank nos.

Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages. These pages will eventually be made live, so try again later.

accession	locus	voucher	source



No data available in table

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 data we have on this taxon is represented by a "black and white" photograph, extremely limited field notes, and a brief examination of the exsiccatum. By using the size of type from examples produced on Hesler's typewriter, we can obtain a good idea of the size of the photographed fruiting body.

The following is based on original research of R. E. Tulloss.

pileus

42⁺ mm wide, "fulvous"; margin presumably striate.

lamellae

free, "white", close; lamellulae infrequent.

stipe

125 × 11.5 mm, "white"; partial veil superior, skirt-like, persistent; universal veil saccate, membranous, tubular, 57 × 25 mm.

odor/taste

not recorded

macrochemical
tests

none recorded

subhymenium

pseudoparenchymatous (cellular); with 2^± cell layers. Tissues difficult to rehydrate.

basidia

?? ; clamps rather common.

anatomical figures

basidiospores

send to graphing tool

[20/1/1] (9.6-) 9.9 - 14.0 (-14.5) × (6.8-) 6.9 - 8.5 (-8.0) μm, (L = 11.1 μm; W = 7.4 μm; Q = 1.37 - 1.65 (-1.68); Q = 1.50), hyaline, colorless, smooth, thin-walled, inamyloid, ellipsoid to elongate, adaxially flattened, with some distorted or bean-shaped spores present, with some giant spores present; apiculus ??; contents granular; color in deposit not recorded.

ecology

In sandy soil of deciduous woods.

material examined

U.S.A.: NORTH CAROLINA—Macon Co. - ca. 3 km E of Highlands by rd., Horse Cove [35° 02' 40.53" N/ 83° 09' 43.51" W], 22.viii.1955 L. R. Hesler 22051 (TENN).

discussion

From the limited information available, the species probably belongs in the group associated with A. jacksonii.

Taking into account the presence of giant spores (suggesting immaturity of Hesler's specimen), the best match of sporographs is apparently with A. banningiana and A. sp-S10.

A sporograph comparison with A. arkansana is presented here.

A sporograph comparison with A. banningiana is presented here. The similarity of the sporographs of these two species is likely to be misleading because of the relatively small universal veil that is typical of A. banningiana and differs dramatically from the large tubular volval sack in Hesler's photograph.

A sporograph comparison with A. sp-S10 is presented here:

A sporograph comparison with A. sp-AR01 is presented here.

citations

—R. E. Tulloss

editors

RET

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

name	Amanita sp-Hesler-22051
name status	cryptonomen temporarium
author	Tulloss
images	1. Amanita arkansana, North Carolina, U.S.A.
anatomical figures
photo	Dr. L. R. Hesler - (2) North Carolina, U.S.A., with permission of Dr. R. H. Petersen, Curator, L. R. Hesler Herbarium, Univ. of Tenn., Knoxville.

name	Amanita sp-Hesler-22051

name	Amanita sp-Hesler-22051

Spore data for collections
provisionally identified as: Amanita sp-Hesler-22051 Tulloss

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

[top]

stirps Caesarea5

stirps Calyptratoides2

stirps Calyptroderma5

stirps Chambersiana1

1↓ stirps Hemibapha44

infraspecific taxa of hemibapha1

stirps Pachysperma5

stirps Ristichii1

stirps Spreta2

stirps Torrendii1

Spore Measurements by Collection

stirps Caesarea
5

stirps Calyptratoides
2

stirps Calyptroderma
5

stirps Chambersiana
1

1↓
stirps Hemibapha
44

infraspecific taxa of hemibapha
1

stirps Pachysperma
5

stirps Ristichii
1

stirps Spreta
2

stirps Torrendii
1