| name |
Amanita sp-A12 |
| name status |
cryptonomen temporarium |
| GenBank nos. |
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|
| 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 by R. E. Tulloss. |
| pileus |
67 - 101 mm wide, 5D4, 5C-D3, some with dark band over
inner ends of marginal striations, unchanging when
cut or bruised, convex to
plano-convex, umbonate, tacky; context
off-white,
pale grayish brown under pileipellis in disc,
unchanging when cut or bruised, 4.5 - 10
mm thick, thinning evenly to margin; margin
nonappendiculate, striate (0.15 - 0.3% R);
universal veil usually absent, sometimes as
whitish soft thick patch with verruculose surface,
unchanging when cut or bruised. |
| lamellae |
free to narrowly adnate and infrequently with
decurrent
line on stipe apex, crowded, whitish in mass and
white in side view; lamellulae truncate to
attenuate after a step,
??. |
| stipe |
125 - 168 × 8 - 12 mm, whitish to pallid,
faintly browning from handling, occasionally sinuate
in portion inserted in substrate, narrowing
slightly downward,
flaring at apex, decorated with white pulverulence
above, with fine to coarse recurved scales below;
context hollow below, stuffed above, off-white
to faintly brownish, unchanging when cut or bruised,
larva tunnels not observed, with central cylinder 3.5
- 7.0 mm wide (0.45 - 0.6% of stipe width);
exannulate; universal veil as soft
fleshy white soft membranous saccate volva, sightly
flaring and filled with subsrate,
with distance from stipe
base to highest point on volval limb 22 - 34 mm, ca.
3 mm thick at mid-height, with small limbus internus
at point of connection of stipe and volval limb. |
| odor/taste |
Odor faint or none. Taste
not recorded. |
macrochemical
tests |
Paracresol spot test for tyrosinase - entire
cross-section of basidiome orange-brown (positive)
in 1 min. Syringaldazine spot test for
laccase - context of
universal veil and stipe base and base of stuffed
central cylinder of stipe strong lavender (positive)
after 13 mins. Test voucher:
Tulloss 7-13-87-A. |
| basidia |
??, 4-sterigmate;
clamps not observed. |
| partial veil |
absent. |
| lamella edge tissue |
sterile. |
| basidiospores |
RET: [20/1/1] 9.1 - 11.9 (-12.9) × (8.0-)
9.1 - 11.2 (-11.5) μm, (L = 10.9 μm;
W = 10.1 μm; Q = 1.0 - 1.22 (-1.23);
Q = 1.08), hyaline, colorless, smooth,
thin-walled, globose to subglobose to broadly
ellipsoid, ??;
apiculus sublateral; contents
??; white in deposit. |
| ecology |
Subgregarious. In sandy clay of open grassy
area with Pinus taeda. |
| material examined |
U.S.A.:
ALABAMA—Chambers Co. - Lanette,
13.vii.1987 David C. & R. E. Tulloss 7-13-87-A
(in herb. Dav. T. Jenkins; RET 087-5, nrLSU seq'd.). |
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite