| name |
Amanita sp-S01 |
| 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 based on original research by R. E. Tulloss. |
| pileus |
54 - 70+ mm wide, very pale yellowish cream (3A2) to slightly sordid yellowish (less gray than 4B4), unchanging when cut or bruised, convex, sometimes markedly umbonate, tacky, subshiny; context off-white, unchanging when cut or bruised, 4 mm thick at stipe, thinning evenly for 80% of the radius, then membranous to margin; margin tuberculate striate (0.35R), nonappendiculate or appendiculate with fragments of thin membranous annulus (sometimes also covering parts of lamellae); universal veil absent or as scattered pale tan scales. |
| lamellae |
free to narrowly adnate with decurrent tooth (10× lens), close, white in mass and in side view, becoming creamy to tan in age (Vincent 5627), 4 mm broad, thin; lamellulae truncate, very plentiful, of widely varying length. |
| stipe |
87± × 7.5± mm, white, faintly tannish after handling, narrowing upward and flaring at apex, satiny above, finely fibrillose below, becoming subsquamulose at base near bulb; context whitish, becoming very faintly orangish tan when cut or bruised, faintly orangish tan in larva tunnels, stuffed, with central cylinder 2.5 mm wide; bulb 17.5± × 13.5± mm, subglobose to ovoid, white; partial veil ephemeral, sometimes in shreds on pileus margin, white, thin, membranous; universal veil limbate, short, submembranous, white, with thickened or rolled edge free for about two thirds of stipe base circumference. |
| odor/taste |
Odor lacking or mild to somewhat fishy (Vincent 5627). Taste not recorded. |
macrochemical
tests |
none recorded. |
| basidia |
36 - 78 × 8.8 - 12.5 (-15.5) µm, 4- or (infrequently) 2-sterigmate, occasionally projecting up to 15 µm beyond surrounding basidioles; clamps not observed. |
| basidiospores |
[100/5/5] (8.4-) 8.7 - 11.2 (-12.2) × (5.9-) 6.2 - 7.3 (-7.7) µm, (L = 9.3 - 10.7 µm; L’ = 9.9 µm; W = 6.5 - 6.8 µm; W’ = 6.7 µm; Q = (1.27-) 1.34 - 1.66 (-2.0); Q = 1.42 - 1.60; Q’ = 1.48), hyaline, colorless, thin-walled, smooth, inamyloid, ellipsoid to elongate, occasionally broadly ellipsoid, rarely cylindric, sometimes swollen at one end, adaxially flattened; apiculus sublateral, cylindric, prominent; contents monoguttulate; white in deposit. |
| ecology |
Solitary to gregarious. New Jersey: In Pinus-Quercus barrens, in sandy soil. Ohio: Under Pinus strobus. South Carolina: Solitary to gregarious in red clay of mixed forest including P. echinata, Quercus marilandica, Q. texana (=nuttallii), Q. rubra, Ilex sp., Sassafras albidum, Cornus florida, and Liriodendron tulipifera. |
| material examined |
U.S.A.: CONNECTICUT—Middlesex Co. - E. Haddam, Devil's Hopyard St. Pk. [41°28'32" N/ 72°20'25" W, 72 m], 25.ix.1999 George Davis s.n. [Tulloss 9-25-99-Q] (RET 301-2); Salmon River St. For. (South) [41°32’58” N/ 72°27’01” W, 21 m], 30.viii.1997 Leon Chernoff s.n. [Tulloss 8-30-97-C] (RET 268-6), 3.ix.2011 Damon Brunnette s.n. [Tulloss 9-3-11-B] (RET ). New Haven Co. - Cheshire Twp., Sleeping Giant St. Pk. [41°26'02" N/ 72°53'03" W, 179 m], 23.vii.1992 Pat McDonugh s.n. [Tulloss 7-23-92-E] (RET 066-8). Tolland Co. - Hebron, The Hemlocks Nature Educ. Ctr. [41°37’11” N/ 72°23’22” W, 145-160 m], 2.ix.2011 R. E. Tulloss 9-2-11-A (RET 490-9).
MASSACHUSETTS—Essex Co. - Boxford St. For., 6.ix.1990 Peter Fetchko, Rob Moir & R. E. Tulloss s.n. [Tulloss 9-6-90-B] (RET 607-4). Middlesex Co. - Groton Conservation Area, 19.viii.1989 M. Bleuker s.n. [Tulloss 8-19-89-E] (RET 246-5).
MISSISSIPPI—Pike Co. - McComb, 8.viii.1999 A. E. Bessette 11030 (RET 317-8).
NEW HAMPSHIRE—Cheshire Co. - Monadnock St. Pk., 18.viii.1989 R. Seelig s.n. [Tulloss 8-18-89-I] (RET 246-6).
NEW JERSEY—Cape May Co. - Belleplain St. For., ca. Dennisville [39°11’22” N/ 74°51’12” W], 6.ix.1986 Don Aufenkamp, Lee Baade & R. E. Tulloss 9-6-86-D (RET 116-9).
NORTH CAROLINA—Transylvania Co. - Dupont St. For., ca. Lake Imaging [35°12.538’ N/ 82°36.94’ W, 704 m elev.], 25.vi.2011 Jay Justice NC-AM-39 (RET 502-7).
OHIO—Preble Co. - Somers Twp., Swan Beatty Rd., Pleasant Valley Retreat Ctr., sect. 20, 29.vii.1992 M. A. Vincent 5627b (MU f39190; RET 121-1).
SOUTH CAROLINA—Oconee Co. - Seneca [34°46'09" N/ 82°57'55" W, 263 m], 27.vi.1985 M. A. King, E. J. Luetkemeier & R. E. Tulloss 6-27-85-F (RET 054-4), 18.vii.1986 Tulloss et al. 7-18-86-A (RET ??), -B (RET ??), -C (RET ??), 19.vii.1986 Tulloss et al. 7-19-86-A (RET ??), 6.viii.1988 unkn. coll.? 8-6-88-D (RET ??).
TEXAS—Newton Co. - Co. Rd. 3062, Lewis prop. [30°42.509’ N/ 93°49.630’ W], 2.viii.2009 David P. Lewis 9156 (RET 461-4). |
| discussion |
Before the stipe's bulb is unearthed, basidiomes of this taxon may give the strong impression of belonging to sect. Vaginatae.
Below there are sporographs based on limited existing data that make spore size and shape comparisons between the present "taxon" and the following: A. agglutinata, A. gemmata, A. russuloides, A. sp-N08, A. sp-N19, and A. sp-T22. The reader will not, that among these morphologically similar taxa (as interpreted by RET) and provisional taxa. There may be at least two distinct North American clusters—one appearing to include A. agglutinata, A. sp-N08, A. sp-N19, and A. sp-S01; and the other, A. russuloides (as currently interpreted by RET) and A. sp-T22. The European material provisionally identified with A. gemmata by RET appears to be distinct from both clusters.
[Note: Compare with material previously classified as A. agglutinata, A. russuloides, and species N8, N19, and T22.]—R. E. Tulloss |
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite