(Fr.) Redhead & A.H. Sm.
Identity
Unique IDELEMENT_GLOBAL.57.10164
Element CodeNFSM000108
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryFungus
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomFungi
PhylumBasidiomycota
ClassBasidiomycetes
OrderAgaricales
FamilyStrophariaceae
GenusMythicomyces
SynonymsAgaricus corneipesFr.
Concept ReferenceCastellano, M.A., E. Cazares, B. Fondrick, and T. Dreisbach. 2003. Handbook to additional fungal species of Special Concern in the Northwest Forest Plan. Gen. Tech. Rep. PNW-GTR-572. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 144 pp. Online. Available: https://www.fs.usda.gov/pnw/pubs/pnw_gtr572.pdf
Conservation Status
Rank MethodLegacy Rank calculation - Biotics v1
Review Date2019-03-21
Change Date2006-06-28
Edition Date2019-03-21
Edition AuthorsLorelei L Norvell (2002), rev. Treher (2019)
Threat ImpactUnknown
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences21 - 300
Rank ReasonsMythicomyces corneipes is a saprophytic fungus dependent upon very moist organic matter in complex habitats: margins of northern bogs, on stream banks, or wet sweeps under conifers and alders in old growth forests.The species has a wide and scattered distribution in North America and Europe, where it is universally regarded as vulnerable. In North America, there around 60 occurrences. The number of occurrences in Europe is unknown. All populations are at risk from incidental catastrophic events such as wildfire and anything that destroys the substrate or dries out the sites. Old growth forest are in decline due to logging and stand replacing fires. Regional Red List Assessments categorize this species as 'Vulnerable' in Norway and Finland and 'Data Deficient' in Sweden. The most important element of this species conservation status is limited ability to disperse and lengthy time for the habitat to regenerate.
Range Extent CommentsMythicomyces corneipes is a rare but wide ranging boreal mushroom. Redhead & Smith (1986) and Huhtinen & Vauras (1992) verified collections from eastern and western Canada, the western United States, Great Britain, Norway, Sweden, and Finland. It is known from the northern spotted owl region in western North America (Norvell (1998); ISMS Database 2002 and GIS map for MYCO11). In North America, it is documented in Alaska, British Columbia, Oregon, Washington, Idaho, California, Colorado, Utah, Michigan, New York, Ontario, and Nova Scotia (N. Siegel, pers. comm., 2017).
Occurrences CommentsThe number of occurrences worldwide is not known but it is regarded everywhere as rare. In North America, there are between 60 and 70 known sites. Continued fungal surveys and closer scrutiny of boggy or frequently flooded forested areas for small somewhat inconspicuous mushrooms should uncover more sites.
Threat Impact CommentsVery little is actually known about threats to this species but it is thought to be threatened by stand replacing fires, logging, and potentially cattle grazing. All populations are at risk to incidental catastrophic events, such as hot fires, and unmonitored human interference. Unprotected occurrences are at risk from logging activities such as brush clearing or stream diversion or clearcutting (Norvell, pers. comm., 2002). Around 45 of 60 sites are not in protected areas, If those sites are logged on a 40 year rotation, around 16% of the sites in North America would be impacted over 10 years and around 75% of the sites would be impacted over 100 years. Cattle potentially graze and trample areas around some seeps/streams.