name | Amanita clarionensis | ||||||||||||||||
author | Tulloss | ||||||||||||||||
name status | nomen provisorum | ||||||||||||||||
GenBank nos. |
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intro | The following is based on original research of R. E. Tulloss and C. Rodríguez Caycedo. | ||||||||||||||||
pileus | 61 - 70+ mm wide, grayish brown with suggestion of olive tint (ca. 5D4), with disc a deep brown (near fuligineous), unchanging when cut or bruised, plano-convex, tacky to viscid when moist, dull; context 4.5 mm thick, white, except for gray region below pileipellis, unchanging when cut or bruised, narrowing evenly for ca. half of radius, then membranous to margin; margin tuberculate striate (0.65R), nonappendiculate; universal veil absent. | ||||||||||||||||
lamellae | receding with decurrent line on stipe apex, subcrowded, sordid in mass, gray or watersoaked in side view, unchanging when cut or bruised, 5 mm broad, broadest ca. mid-length, with white minutely flocculose edge; lamellulae truncate with 1 noted exception (subattenuate), unevenly distributed, plentiful, of diverse lengths. | ||||||||||||||||
stipe | 95± × 8.0 - 8.5 mm, cream, becoming slightly orangish tan from handling, narrowing upward, sometimes somewhat flattened, flaring just at apex, finely pulverulent from apex downward for up to about 30 mm, finely striatulate below; context damaged by larvae in known specimens, off-white, unchanging when cut or bruised, concolorous in larva tunnels, with central cylinder 4.5± mm wide (after larval damage); exannulate; universal veil as saccate volva, 22 × 12 - 13 mm, firmly membranous, white throughout, with smooth dry exterior suggesting an eggshell, with limb 1± mm thick at mid-height; limbus internus minimal, appearing as 1 mm deep indentation on inner surface of limb, faint, visible as shadowy line in bright light. | ||||||||||||||||
odor/taste | Odor lacking. Taste not recorded. | ||||||||||||||||
macrochemical tests |
none recorded. | ||||||||||||||||
basidia | 66 - 82 × 12.5- - 13.3+ μm, 4-sterigmate, with sterigmata up to ?? × ?? μm; clamps probably absent. | ||||||||||||||||
basidiospores | composite of data from all material revised by RET & CRC: [90/2/2] (8.5-) 9.7 - 12.5 (-14.3) × (7.0-) 7.5 - 9.5 (-11.0) μm, (L = 10.6 - 11.3 μm; L' = 11.0 μm; W = 8.7 - 8.8 μm; W' = 8.7 μm; Q = (1.09-) 1.13 - 1.44 (-1.55); Q = 1.21 - 1.31; Q' = 1.26), hyaline, colorless, smooth, thin-walled, inamyloid, predominantly ellipsoid, infrequently broadly ellipsoid, at least somewhat adaxially flattened; apiculus sublateral, cylindric or slightly tapered; contents granular or mono- to multiguttulate with additional small granules; color in deposit not recorded. | ||||||||||||||||
ecology | At ca. 420 m elev. In forest including Quercus, Tsuga canadensis, and Pinus. | ||||||||||||||||
material examined | U.S.A.: PENNSYLVANIA—Clarion Co. - Clarion, St. Game Lands 63, Robert's Hill Rd. [41.1421° N/ 79.2830° W, 419 m], 6.viii.2011 I. V. Hull s.n. [NAMA 2011-260; Tulloss 8-6-11-A] (RET 478-8, nrITS-LSU seq'd.), D. K. Shankland s.n. [Tulloss 8-6-11-D] (RET 478-4, nrITS-LSU seq'd.). | ||||||||||||||||
discussion | The present species was previously knonw on this site as "Amanita sp-N51." | ||||||||||||||||
citations | —R. E. Tulloss & C. Rodríguez Caycedo | ||||||||||||||||
editors | RET | ||||||||||||||||
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