name | Amanita sp-AR01 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 upon original research by R. E. Tulloss. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
pileus | 90± - 220 mm wide, bright scarlet to dark rust red, fading with age to a canteloupe color (rather pale orange) and lighter at margin, viscid when moist; context ??; margin striate; universal veil absent. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
peridium | double click in markup mode to edit. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
lamellae | no description. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
stipe | 100± - 205 × 10 - 60[??] mm, light peach colored; partial veil present; universal veil saccate, white. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
odor/taste | not reported. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
macrochemical tests |
none recorded. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
basidiospores | [60/3/1] (8.0-) 8.6 - 11.0 (-19.2) × (5.7-) 6.0 - 7.4 (-8.0) µm, (L = 9.4 - 9.7 µm; L’ = 9.6 µm; W = 6.5 - 6.7 µm; W’ = 6.6 µm; Q = (1.31-) 1.36 - 1.58 (-2.40); Q = 1.44 - 1.48; Q’ = 1.45), hyaline, colorless, smooth, thin-walled, inamyloid, adaxially flattened, ellipsoid to elongate, rarely cylindric; apiculus sublateral, cylindric to truncate conic; contents dominantly monoguttulate with additional small granules; ?? in deposit. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ecology | Subgregarious. At 393 m elev. In open oak-cedar (Quercus-Juniperus) woods. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
material examined | U.S.A.: ARKANSAS—Craighead Co. - Jonesboro, 630 County Rd. 753, ca. 90 m from gravel pit, 22.ix.2012 Al Baker s.n. [35.9278° N/ 90.6744° W, 130 m] (RET 519-4). Washington Co. - Farmington [36.0354° N/ 94.2268° W, 393 m], 28.vi.2004 Larry McGarrah s.n. [Tulloss 6-28-04-A] (RET 373-9). TENNESSEE—Cumberland Co. - 15.2 km N of Crossvile, Rinnie Community, Roberts property [36.1352° N/ 85.0735° W, 558 m], 29.vii.2012 Steve Roberts s.n. [mushroomobserver #103358] (RET 507-10). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
discussion |
Mr. McGarrah noted that "Squirrels readily devoured
specimens avoiding all other types of mushrooms [in the
vicinity]." The present species can be distinguished in the field from specimens of A. jacksonii due to the absence of red-orange fibrils and squamules on the stipe surface. The following compares the sporograph of the present species to that of A. jacksonii: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
citations | —R. E. Tulloss | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
editors | RET | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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name | Amanita sp-AR01 |
name status | cryptonomen temporarium |
author | Tulloss |
images | |
photo | Steve Roberts - (1-2) north of Crossville, Cumberland County, Tennessee, U.S.A. (RET 507-10) [Note: Original images can be viewed on mushroomobserver.org here.] |
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.