Amanita sp-T23

name

Amanita sp-T23

author

Tulloss

name status

cryptonomen temporarium

GenBank nos.

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accession	locus	voucher	source

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 derived from original research of R. E. Tulloss.

pileus

52 mm wide, in general yellowish beige, at margin yellower than 10YR 8/3, over disc 10YR 7/4, at first hemispheric with minimal umbo, tacky, dull; context white except tan immediately below pileipellis, unchanging when cut or bruised, 4 mm thick above stipe; margin nonappendiculate, striate (0.2^±R); universal veil absent.

peridium

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lamellae

free to narrowly adnate with short decurrent line on upper stipe, close to subcrowded, pale orangish cream in mass, off-white in side view, unchanging when cut or bruised, 4 mm broad; lamellulae truncate, ??.

stipe

111 × 8.5 mm, off-white under layer of flocculence (concolorous with pileus margin), unchanging when cut or bruised, narrowing upward, flaring slightly at apex; context stuffed above, solid below, white, unchanging, with insect tunnels pale sordid or concolorous with context, with central cylinder 3 mm wide; exannulate; universal veil remaining only in few submembranous patches, soft, white.

odor/taste

Odor none or very faint. Taste not recorded.

macrochemical
tests

none recorded.

basidia

4-sterigmate.

lamella edge tissue

sterile.

basidiospores

composite of all data from material revised by RET: [20/1/1] (9.4-) 10.1 - 11.9 (-15.7) × 7.7 - 9.1 (-11.2) µm, (L = 11.1 µm; W = 8.6 µm; Q = (1.14-) 1.20 - 1.45; Q = 1.29), hyaline, colorless, smooth, thin-walled, inamyloid, broadly ellipsoid to ellipsoid, infrequently subglobose, some expanded at one end, some slightly indented adaxially, predominantly adaxially flattened; apiculus sublateral, ??; contents ??; ?? in deposit.

ecology

Mississippi: Solitary. In loamy soil of "midslope hardwood" forest.

material examined

U.S.A.: MISSISSIPPI—Harrison Co. - DeSoto Nat. For., Tuxachanie Tr., 18.vii.1987 B. Woo s.n. [Tulloss 7-18-87-H] (RET 088-1).

citations

—R. E. Tulloss

editors

RET

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name	Amanita sp-T23
name status	cryptonomen temporarium
author	Tulloss
intro	Amanita sp-T23 is a rarely encountered species with a yellowish beige cap, a notably floccose stem, and predominantly broadly ellipsoid to ellipsoid spores.
cap	The cap is about 52 mm wide, pale yellowish beige, and has a very slight umbo. The cap's flesh is white (except for pale tan just below pileipellis) and 4 mm thick above the stem.
gills	The gills are free to narrowly adnate, close to subcrowded, pale orangish cream in mass, off-white in side view, and about 4 mm broad. The short gills are truncate.
stem	The stem is about 111 × 8.5 mm, and off-white below a coating of flocculence; the dense flocculence is concolorous with the cap. The stem has no annulus. The volval remnants at the stem's base are submembranous white patches.
odor/taste	The odor is very faint or absent. No taste is reported for this species.
spores	The spores of this species measure (9.4-) 10.1 - 11.9 (-15.7) × 7.7 - 9.1 (-11.2) µm and are broadly ellipsoid to ellipsoid (infrequently subglobose) and inamyloid. Clamps are not to be found at bases of basidia.
discussion	This species is known from mixed forest in the southeastern U.S.—R. E. Tulloss
brief editors	RET

name	Amanita sp-T23
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name	Amanita sp-T23
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