name | Amanita longicuneoides | ||||||||||||||||
author | Tulloss & Kudzma | ||||||||||||||||
name status | nomen provisorum | ||||||||||||||||
GenBank nos. |
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intro |
The following text may make multiple use of each
entry field. The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material. The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate. 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 molecular research of Dr. Linas Kudzma and other original research of R. E. Tulloss. | ||||||||||||||||
pileus | 62 mm wide, dark brown over disc, elsewhere paler brown, unchanging when cut or bruised, broadly planoconvex, with small central umbo, tacky, subshiny; margin nonappendiculate, tuberculate-strate (0.40R); context pale sordid white, staining not observed,4.5 mm thick above stipe, thinning evenly toward margin for 65 - 75% of gill length, then membranous to margin; universal veil absent. | ||||||||||||||||
lamellae | free, with very short decurrent tooth (10× lens), subcroweded to crowded, pale cream in mass, white in side view, with bruising not oberved, 6 mm broad; lamellulae truncate, unevenly distributed, plentiful, of diverse lengths. | ||||||||||||||||
stipe | 108 × 8 mm, white to off-white,becoming pale brownish from handling, narrowing upward, just barely flaring at apex, smooth for upper two-thirds, with finely fibrillosed raised squamules in lower third above volval limb; context hollow, off-white to very pale yellowish white, with central cylinder 3 mm wide, invertebrate damage not present; exannulate; universal veil saccate, persistent, soft, membranous, 14.5 mm wide, 41 mm from very base of stipe to highest point of limb, less than 1 mm thick, subabruptly flaring away from stipe at about mid-height, below this point, appressed to stipe, dominately white on both surfaces, with pale orangish brown patches on expanded upper portion of limb, appressed to stipe for about one half height; limbus internus arising from about point of separation of stipe and universal veil, paper thin except for short basal portion having triangular cross-section. | ||||||||||||||||
odor/taste | Odorless and tasteless. | ||||||||||||||||
macrochemical tests |
Spot test for laccase (syringaldazine) - rapidly positive in spot below cental cavity of stipe, spreading along line dividing tissues of stipe base from limb of universal veil; otherwise, entirely negative. Spot test for tyrosinase (paracresol) - positive throughout basidiome except for central portion of pileus context, spots on lamellae, and context of universal veil at stipe base. Test voucher: Tulloss 8-30-98-A. | ||||||||||||||||
partial veil | absent. | ||||||||||||||||
lamella edge tissue | sterile. | ||||||||||||||||
basidiospores | RET: [15/1/1] (10.0-) 10.4 - 11.4 (-11.5) × (8.7-) 9.1 - 10.3 (-10.5) μm, (L = 10.8 μm; W = 9.7 μm; Q = (1.03-) 1.05 - 1.17 (-1.18); Q = 1.11) hyaline, colorless, smooth, thin-walled, inamyloid; apiculus sublateral, cylindric; contents granular to multiguttulate; white in desposit. | ||||||||||||||||
ecology | At 16 m elev. In sandy soil of Pinus rigida barrens with diverse Quercus spp. | ||||||||||||||||
material examined | U.S.A.: NEW JERSEY—Burlington Co. - Audubon Rancocas Nat. Ctr., 9.viii.2009 NJMA foray participant s.n. [Tulloss 8-9-09-A] (RET 437-6, nrITS-LSU seq'd.). Monmouth Co. - Shark River Co. Pk. [40°12’18” N/ 74°05’44” W, 16 m], 30.ix.1984 30.viii.1998 C. Conover, S. E. K. & R. E. Tulloss [Tulloss] 8-30-98-A (RET 286-8, nrITS seq'd.). | ||||||||||||||||
discussion | This probable species is separated from Amanita longicuneus on the basis of genetic data. | ||||||||||||||||
citations | —R. E. Tulloss | ||||||||||||||||
editors | RET | ||||||||||||||||
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