name | Amanita sp-N63 | ||||||||||||||||||||||||||||||||
author | Tulloss & Kudzma | ||||||||||||||||||||||||||||||||
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 the photographs of the collector, molecular work for extraction of DNA and derivation of sequences by L. V. Kudzma, and other original research of R. E. Tulloss. [Note: The nrLSU sequence for RET 075-3 has been deleted temporarily from the "GenBanks nos." data field, above.—ed.] | ||||||||||||||||||||||||||||||||
pileus | 90+ mm wide, yellow-tan in outer half of radius, dark brown over disc, fading progressively toward lighter zone, convex, with pronounced umbo, subvirgate to virgate; context white; margin striate (0.20±R), nonappendiculate; universal veil absent. | ||||||||||||||||||||||||||||||||
lamellae | free to receding, close, white; lamellulae of diverse lengths, often truncate. | ||||||||||||||||||||||||||||||||
stipe | 240 ± × 15± mm, with 150 mm of lower stipe inserted in substrate, with base color white, undecorated below substrate surface, with yellow-tan "snakeskin" or "flame" pattern above substrate; context white; exannulate; universal veil as saccate volva, white, membranous. | ||||||||||||||||||||||||||||||||
odor/taste | Odor and taste not recorded. | ||||||||||||||||||||||||||||||||
macrochemical tests |
none recorded. | ||||||||||||||||||||||||||||||||
partial veil | absent. | ||||||||||||||||||||||||||||||||
lamella edge tissue | sterile. | ||||||||||||||||||||||||||||||||
basidiospores | [30/1/1] (8.0-) 10.2 - 12.5 (-26.5) × (7.0-) 8.4 - 10.8 (-18.5) μm, (L = 11.4 μm; L' = 11.4 μm; W = 9.7 μm; W' = 9.7 μm; Q = (1.06-) 1.07 - 1.33 (-1.77); Q = 1.18; Q' = 1.18), hyaline, colorless, smooth, thin-walled, inamyloid, broadly ellipsoid to ellipsoid, adaxially flattened, with giant irregular or malformed spores produced early in sporulation; apiculus sublateral, cylindrice, rarely lateral in giant spores; contents guttulate with additional small granules; color in deposit not recorded.. | ||||||||||||||||||||||||||||||||
ecology | Maine: In Picea forest. | ||||||||||||||||||||||||||||||||
material examined | CANADA: NEWFOUNDLAND & LABRADOR—unkn. loc., 3.x.2003 unkn. coll. s.n. [Tulloss 10-3-03-A] (RET 373-8, nrITS & nrLSU seq'd.). U.S.A.: MAINE—Cumberland Co. - N. Yarmouth, "Rte. 9 spruce forest," 18.x.1987 Dr. Samuel S. Ristich s.n. [Tulloss 10-18-87-SSR1] (RET 672-4, nrITS seq'd.), 27.x.1999 S. S. Ristich s.n. [Tulloss 10-27-99-SSR1] (RET 686-3, nrITS & nrLSU seq'd.). York Co. - unkn. loc., 14.ix.2009 Herbert Baker s.n. [mushroomobserver #25246] (RET 449-1, nrITS seq'd.). NEW HAMPSHIRE—Carroll Co. - Chatham, Cold River Camp [44.2362° N/ 71.0119° W, 157 m], 4.x.1992 Samuel S. Ristich s.n. [Tulloss 10-4-92-SSR1] (RET 075-3, nrITS & nrLSU seq'd.). | ||||||||||||||||||||||||||||||||
discussion |
The present species is very similar to Amanita
sp-NFL06. In the field, the basidiomes are
nearly identical. It seems that the spores
also are very similar: A next step is to obtain DNA from sp-NFL06 to compare with DNA of the present species. RET 686-3 is immature with very few sterigmate basidia and only distorted or malformed giant spores. Given the samples in RET's herbarium, Dr. Ristich applied the European name "A. umbrinolutea" to both this taxon and A. alligator. | ||||||||||||||||||||||||||||||||
citations | —R. E. Tulloss and L. V. Kudzma | ||||||||||||||||||||||||||||||||
editors | RET | ||||||||||||||||||||||||||||||||
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