This page is under construction. At present, users
may wish to see the technical tab of the present page.
Currently it is largely based on a typescript of Dr.
A. H. Smith who originated the unpublished name.
This species is said to be odorless. No taste
has been reported.
Smith attributed to his manuscript name, A.
stannea, collections found under Aspen (Populus
tremuloides) in Colorado, U.S.A.—R. E. Tulloss
A. H. Sm. ex Tulloss
"Tin-cap Ringless Amanita"
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.
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 based on one typescript
version of an unpublished Ms. of A. H. Smith, on
annotations of A. H. Smith collections designated
in the typescript, and on observations of the
material by R. E. Tulloss.
50 - 100 mm wide, entirely "Drab" to "Light Drab",
tin-colored when dry, oval to obtuse in buttons,
planar to slightly umbonate in age, surface
viscid at first and soon dry; context white,
thin, fragile; margin pectinate-striate
(0.3 - 0.35R), nonappendiculate; universal
veil usually as scattered discrete warts,
pallid to clay color (dingy ochraceous).
approximate, rather close, white, sometimes
developing light "Vinaceous Fawn" tint, with edges
pallid at first and soon marginate (then with edges pale to
darker "Drab"), not discoloring when bruised;
lamellulae not described.
90 - 160 × 10 - 25 mm,
??, cylindric or
narrowing upward, with appressed gray fibrils
originally uniformly distributed, breaking up into
zones or patches; context
exannulate; universal veil as
persistent cup around stipe base and/or breaking into
warts or patches, pigmented and discoloring as on
per A. H. Smith: [-/-/-] 10 - 15 × 9 - 12 μm,
(est. Q = 1.10 - 1.25; est. Q' = 1.19), smooth,
inamyloid, subglobose to broadly ellipsoid; white
Scattered. Under mixed
conifers or under Populus tremuloides.
COLORADO—Pitkin Co. -
Aspen, 28.viii.1974 A. H. Smith et al. 85147
(MICH 191622); Snowmass Creek, 27.viii.1974 A. H.
Smith & Sulymans [Smith] 85142 (MICH 191607,
AHS card exists), 85143 (MICH 191615,
see AHS card for 85142); 18.viii.1975
A. H. Smith 85846 (MICH 191613, AHS card
IDAHO—Valley Co. - Lk. Cascade
St. Pk., 22.vii.1962 A. H. Smith 65463
WYOMING—Unkn. Co. - Pole Mtn.,
7.viii.1950 A. H. Smith et al. [Smith] 35466
(MICH 191233, AHS photo exists), 10.viii.1950
A. H. Smith et al. [Smith] 35533 (MICH 191216),
35574 (MICH 191218), viii.1950
A. H. Smith 36247 (MICH 191228).
Smith's manuscript description of A. stannea
appears on a page labeled "137" in one typescript
version. That Ms. page is the basic source for the
information on this tab at present. In MICH,
the two notecards containing field notes on specimens
from Colorado (Smith 85142, 85143, and 85846) contain
all of the information that appears in the typescript
with the exception of the mention of coniferous forest
habitat. Because of this, we have placed data
not on the cited cards in olive font.
A collection labeled A. stannea from a NAMA
foray is deposited in F. The collection
number is "NAMA 2010 - 075" and the F accession
number is C0075051F.
We are thankful to Patricia Rogers at MICH for sending scans
of the cards on which Dr. Smith recorded his field
notes and for her successful search for Dr. Smith's
photograph used on this page.—R. E. Tulloss
Information to support the viewer in reading the content of "technical" tabs
can be found here.
Dr. A. H. Smith - (1) Pole Mountain, Converse County, Wyoming, U.S.A.
(MICH 191233) [Note: This image is
the property of the Regents of the University of
Michigan and has been used with their permission. To
inquire about copyright restrictions and
use permissions, contact the Herbarium curator
< email@example.com >.]
no collection records available. Please create a collection record in order to enter spore measurements and derive sporograph from them. The form below will draw a sporograph based on data entered: