Amanita levistriata was described by David
RET was lucky enough to be present for most of the
collecting of the original material.
The cap of A. levistriata is (22-) 31 - 37 mm
wide, near ocher yellow in the center and paler yellow
to colonial buff on the margin; it is hemispheric at
first and becomes convex (sometimes depressed in the
center). The margin is only faintly
striate. The volva is present in
felted patches or a fine powder that is yellowish
olive against the more intensely yellow coloring of
The gills are just free with a decurrent line on the
upper stipe, close, white to cream, and (2-) 3 -
4.5 mm broad; the short gills are truncate, white, and
of diverse lengths.
The stem is 29 - 65 × (2-) 4 - 5 mm, pale yellow
below and whitish or cream above the ring; the stem
narrows upward, barely flaring at apex, has white
flesh and is firmly stuffed or solid. It bearsa basal bulb (15 - 18 × 11 - 15.5
mm) that is ovoid to turnip-shaped and sometimes
markedly flattened on top. The ring is
membranous, skirt-like, superior, white and
finely or faintly radially striate on the top
surface, while yellow and smooth below, it is
thick-margined. On the base of the stem or
top of the bulb, the volva appears as a ring of
finely fibrillose material (lens) or very fine
yellow to olive warts.
No odor or taste has been recorded for this species.
The rather small spores of Amanita levistriata measure
(6.5-) 7.5 - 9.5 (-10.0) × (5.5-) 6.5 - 8.0 (-9.8) µm and are
subglobose to broadly ellipsoid (infrequently globose or ellipsoid)
and inamyloid. Basidia lack clamps at their bases.
Spores this small are most often present in semitropical to tropical
species of section Amanita.
This species was originally described from
Mississippi, where it is known to occur in sandy
soil of mixed (deciduous/coniferous) forests.
It is also known from Georgia and Texas and probably
can be found with
oak or chestnut in adjoining coastal plain regions
of the southern USA. Fruiting bodies occur
singly or in small groups.
Jenkins reports that the gelatinized surface
layer of the cap's skin can be hard to find.
This, in conjunction with the powdery warts and
their placement on the cap and basal bulb suggest a
volva and cap skin similar to those of such
species as A.
farinosa Schwein. and the recently
siamensis R. Sanmee et al. of
southeast Asia.—R. E. Tulloss
Dav. T. Jenkins. 1988. Mycotaxon 32: 415, figs. 1-2.
"Gulf Coast Lemon Amanita"
According to the protolog: leviter, "lightly" + striatus, "striated"; hence, "lightly striated," in reference to the pileus margin
J. Geml et al., Naturalis Biodiversity Center, Leiden
in herb. Dr. David T. Jenkins, Univ. of Alabama, Birmingham
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
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 followins is derived from the protolog (as indicated) and, otherwise, is based on original research of R. E. Tulloss.
(22-) 31 - 37 mm wide, near yellow ocher [2.5Y 6/8] on disc, paler yellow to colonial buff [5Y 8/6] on margin, shiny, hemispheric then convex or plano-depressed, at maturity having a slightly depressed center; context whitish, yellow under pileipellis; margin faintly striate, sometimes appendiculate with fine yellow bits; universal veil felted patches and warts, largest over disc or fine pulverulent powder, yellowish olive-colored, with olive tint especially noticeable against yellow of pileipellis, darkening with exposure.
just free with a decurrent line on stipe, close, white to cream, (2-) 3 - 4.5 mm broad; lamellulae truncate, of diverse lengths.
29 - 65 × (2-) 4 - 5 mm, pale yellow below, whitish or cream above annulus, narrowing upward, barely flaring at apex; bulb 15 - 18 × 11 - 15.5 mm, ovoid to napiform, sometimes subabrupt; context whitish, firmly stuffed to solid; partial veil membranous, skirt-like, superior, white and finely or faintly radially striate above, yellow and smooth below, thick-margined; universal veil as ring of finely fibrillose material (lens) or very fine olive to yellow warts at base of stipe and/or on top surface of bulb.
Odor none. Taste not recorded.
1% paracresol (test for tyrosinase) - becoming positive over a period of 8 min. in universal veil remnants, margins of lamellae, and bulb of stipe. 1% syringaldazine (test for laccase) - negative throughout the basidiome. Test voucher: Tulloss 7-17-87-C.
protolog: Mississippi: Solitary. In sandy soil of mixed coniferous-deciduous forest.
Solitary to scattered. Georgia: ??. Mississippi: In sandy soil of mixed deciduous-coniferous forest. Texas: In Quercus alba-dominated forest.
protolog: U.S.A.: MISSISSIPPI—Harrison Co. - ca. Gulfport, Packard Pond, 15.vii.1987 Dav. T. Jenkins 2822 (paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham).
Jackson Co. - Pascagoula R. Wildlife Mgmt. Area, Parker's Lk., 17.vii.1987 C. Skeffinton s.n. [Tulloss 7-17-87-H] (paratype, RET 003-8; paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham), 18.vii.1987 A. G. Parks s.n. [Tulloss 7-18-87-I] (paratype, RET 005-6; paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham); btwn. Wade and Vancleave, 18.vii.1987 Igor Alexander s.n. [Tulloss 7-18-87-E] (paratype, RET 003-7; paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham).
Perry Co. - Black Creek Wilderness Area, 16.vii.1987 James Tinius s.n. [Jenkins 2793] (holotype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham); Black Creek Wilderness Area, Black Creek Tr., 17.vii.1987 NAMA87 Foray participant s.n. [Tulloss 7-17-87-D] (paratype, RET 005-1; paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham).
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
502-4, nrITS seq'd.).
Jackson Co. - Pascagoula R.
Wildlife Mgmt. Area, Parkers Lk., 17.vii.1987 G.
Wright s.n. [Tulloss 7-17-87-C] (paratype,
RET 005-2, nrITS seq'd.), C. Skeffington s.n.
[Tulloss 7-17-87-H] (paratype, RET 003-8, nrITS
seq'd.; paratype, in herb. Dav. T. Jenkins, Univ.
Alabama, Birmingham), 18.vii.1987 A. G. Parks s.n.
[Tulloss 7-18-87-I] (paratype, RET 005-6, nrITS
seq'd.; paratype, in herb. Dav. T. Jenkins, Univ.
Alabama, Birmingham); btwn. Wade and Vancleave,
18.vii.1987 I. Alexander s.n. [Tulloss 8-17-87-E]
(paratype, RET 003-7, nrITS seq'd.; paratype, in
herb. Dav. T. Jenkins, Univ. Alabama,
Perry Co. - Black Creek Wilderness Area, Black Creek Tr., 17.vii.1987 NAMA87 Foray participant s.n. [Tulloss 7-17-87-D] (paratype, RET 005-1, nrITS seq'd.; paratype, in herb. Dav. T. Jenkins, Univ. Alabama, Birmingham).
TEXAS—Hardin Co. - 6.5 km W of Silsbee,
Roy Larson Sandyland Sanctuary [NAMA2000 Foray 4],
10.vi.2000 E. Schutt
s.n. [Tulloss 6-10-00-C] (RET 313-2, nrITS
seq'd.). Tyler Co. - Forest Lake, 9.vi.1992
D. P. Lewis 4623 (RET 085-7, nrITS seq'd.),
16.vi.1992 D. P. Lewis 4689 (RET 085-8, nrITS
seq'd.), 3.vii.1992 D. P. Lewis
4706 (RET 086-3, nrITS seq'd.), 1.viii.1992
D.P. Lewis 4772 (RET 085-6, nrITS seq'd.).
—R. E. Tulloss
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