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Cortinarius vanduzerensis
''Cortinarius vanduzerensis'' is a species of mushroom in the family Cortinariaceae. Described as new to science in 1972, it is known only from the Pacific Northwest region of North America, where it grows under conifers such as spruce, hemlock, and Douglas-fir. The fruit bodies of the fungus, or mushrooms, have a slimy dark chestnut-brown cap that becomes deeply radially grooved or corrugated in maturity, and reaches diameters of up to . The gills on the underside of the cap are initially pinkish-buff before becoming pale brown when the spores mature. The stem is lavender, measuring long and thick. The mushroom produces a rusty-brown spore print, with individual spores measuring 12–14 by 7–8 micrometers. The edibility of the mushroom has not been determined, and it has been described as "much too slippery to be of value".
==Taxonomy==
The species was described in 1972 by mycologists Alexander H. Smith and James M. Trappe, based on specimens they found in Cascade Head in Tillamook County, Oregon, in October and November 1970.〔 The species had also been called ''Cortinarius elatior'', but that name refers to a European species.〔 Within the genus ''Cortinarius'', ''C. vanduzerensis'' is classified in the subgenus ''Myxacium''.〔 This subgenus includes species in which both the cap and stem are sticky as a result of a glutinous universal veil.〔 Based on the nucleic acid sequence similarity in the internal transcribed spacer region, ''C. vanduzerensis'' is closely related to the European and North American ''C. mucifluus'' and the Costa Rican species ''C. costaricensis''.〔
A common name for the species is the "pointed Cortinarius", while the specific epithet ''vanduzerensis'' refers to the H.B. van Duzer Forest where the species was originally collected.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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