name | Amanita cinderellae | ||||||||
author | Tulloss nom. prov. | ||||||||
name status | nomen provisorum | ||||||||
english name | "Cinderella's Amanita" | ||||||||
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 is based on original research of R. E. Tulloss. | ||||||||
pileus | 64 - 73 mm wide, pale umbrinous gray, not changing when bruised, virgate with pallid streaks, hemispheric with slight umbo, then campanulate to broadly campanulate, subviscid to tacky, subshiny; context white to off-white to pallid beige, sometimes gray in disk and under pileipellis, not changing when cut or bruised, 4 mm thick at stipe, thinning evenly for three-quarters to four-fifths of radius, then membranous to margin; margin striate (0.3 - 0.45R), appendiculate, incurved at first; universal veil absent. | ||||||||
lamellae | free to narrowly adnate, subcrowded, dingy white to off-white in mass, pale cream to off-white in side view, unchanging when cut or bruised, up to 5.5 mm broad, with minutely flocculent concolorous edge, occasionally forking; lamellulae truncate, plentiful, of widely varying lengths, unevenly distributed, occasionally anastomosing to lamellae. | ||||||||
stipe | 94 - 99 × 9.5 - 12 mm, pale gray, becoming grayer with maturity, narrowing upward or thickest at center, flaring or not at apex, finely fibrillose (lens) below partial veil with gray or gray-brown fibrils darker than ground color, somewhat coarsely flocculent (lens) above; context pale gray to beige, darker toward apex and near stipe surface, unchanging when cut or bruised, larva tunnels concolorous, stuffed above, hollow below, with 3 mm wide central cylinder; partial veil subfelted-submembranous to subfelted-fibrillose, at first white above and gray below, becoming entirely gray, becoming radially lacerate, eventually lost, finely striate above (lens), smooth below; universal veil as weakly structured saccate volva tending to break up into smooth, up to 1.5 - 4.5 mm thick, somewhat rounded warts, then easily left in substrate, white at first, becoming gray, highest point of limb (when present) up to 30 mm from stipe base. | ||||||||
odor/taste | Odor not distinctive. Taste not recorded. | ||||||||
macrochemical tests |
none recorded. | ||||||||
basidiospores | [60/3/3] (8.0-) 8.7 - 11.5 (-12.9) × (6.3-) 6.6 - 8.0 (-8.5) µm, (L = 9.4 - 10.4 µm; L’ = 9.9 µm; W = 7.1 - 7.5 µm; W’ = 7.3 µm; Q = (1.22-) 1.25 - 1.50 (-1.58); Q = 1.33 - 1.39; Q’ = 1.36), hyaline, smooth, thin-walled, inamyloid, broadly ellipsoid to ellipsoid; apiculu sublateral, cylindric; contents granular to multiguttulate to monoguttulate with plentiful small granules; white in deposit. | ||||||||
ecology | New Jersey: Solitary under Quercus rubra or Q. alba. Connecticut: Solitary. | ||||||||
material examined |
U.S.A.:
CONNECTICUT—Fairfield Co. - Stamford,
20.ix.1984 S. S. Ristich s.n. [Tulloss
9-20-84-SSR-A] (RET 233-4, nrITS seq'd.),
22.ix.1984 S. S.
Ristich s.n. [Tulloss 9-22-84-SSR-A]
(RET 233-10). Unkn.
Co. - unkn. loc., | ||||||||
discussion |
In the last few years RET and colleagues have
posted many sequences from section __Vaginatae__ to
GenBank. A recent nrITS sequence from the
present species yielded nBLAST results showing a closest
match (but not very close (e.g., grade over 91% with
over 84% similarity) to some of these recently posted
sequences from taxa of the Vaginatae. The 5'-motif of the nrLSU locus in the present species (TCTGACCTCAAATCA) is quite unusual in the genus. It is shared only with a small number of taxa in the Vaginatae; for example, A. minnesorora, A. myrmeciae, A. penetrans, and A. penetratrix. The current list of taxa with the unusual motif can be found on the technical tab of the last named taxon page. It is important to re-evaluate variation in the volva of this probable species. | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Amanita cinderellae |
bottom links |
[ Keys & Checklists ] [ New Jersey & region list ] [ Draft description of, & key to, sect. Caesareae ] |
name | Amanita cinderellae |
bottom links |
[ Keys & Checklists ] [ New Jersey & region list ] [ Draft description of, & key to, sect. Caesareae ] |
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.