Slimy spike-cap

Gomphidius glutinosus

''Gomphidius glutinosus'', commonly known as the slimy spike-cap, is a gilled mushroom found in Europe & North America. Although it has gills, it is a member of the order Boletales, along with the boletes. The fruiting bodies sprout in pine, fir and spruce woodland in Europe in autumn. Initially, are completely covered with a slimy veil, breaking through to reveal a greyish or brownish-capped mushroom with decurrent greyish gills which sometimes resembles a child's top. Opinions differ on the suitability of this mushroom for the table, some guides hold it in high regard, while others view it with caution.
Slimy spike cap These are rather variable in color... but I think that this species that can be this apricot color. I wonder if the color is weather dependent? All of the examples I saw were this same rather light, faintly orangish tone. Geotagged,Gomphidius glutinosus,Slimy spike-cap,Summer,United States

Appearance

Said to resemble a child's top, the mushroom has a dark brownish or greyish cap up to 12 cm in diameter; it has a central boss and an inrolled margin, and is initially convex and later flattens and may develop blackish markings. As with other members of the genus, the whole mushroom is often covered with slimy or sticky veil when young. The fungus tears free of the veil as it grows, leaving some strands and an indistinct ring. The stipe is 3.5–10 cm high and 1–2 cm wide, and is white with a greyish tint and often flushed yellow at the base. The whitish flesh may have a wine-coloured tinge and has little taste or smell. The widely spaced decurrent gills are waxy in texture, with a hairy surface from the cystidia. Sometimes branched, they are initially whitish, then grey and later blackening with spores, and the spore print is brownish-black. The large spores are spindle-shaped and measure 17–20 μm long by 5.5–6 μm wide.

Brownish specimens may be mistaken at a glance for ''Suillus luteus'', but a quick look under the cap will see there are gills rather than pores. Another similar species is ''Hygrophorus hypothejus'', found in similar habitat though with yellow gills which do not separate from the cap.
Slimy spike cap  Fall,Geotagged,Gomphidius glutinosus,United States,gomphidius glutinosus

Distribution

''Gomphidius glutinosus'' is found in Europe & North America where it occurs in autumn under pine and fir trees, both in natural woods and plantations, generally singularly or scattered. Fruiting bodies sprout in the autumn.
Slimy spike cap  Fall,Geotagged,Gomphidius glutinosus,Slimy spike-cap,United States

Habitat

''Gomphidius glutinosus'' is found in Europe & North America where it occurs in autumn under pine and fir trees, both in natural woods and plantations, generally singularly or scattered. Fruiting bodies sprout in the autumn.Like other members of the family Gomphidiaceae, ''Gomphidius glutinosus '' has been thought to be ectomycorrhizal, forming symbiotic relationship with their host trees. However, there is now evidence that many species in this group are parasitic upon ectomycorrhizal boletes, in relationships that are often highly species-specific, such as ''Gomphidius roseus'' upon ''Suillus bovinus''.

Two specimens of ''Gomphidius glutinosus'' were found in Brechfa Forest on the 25th Of July 2009. The only boletus to be found in the vicinity was ''Suillus grevillei''.

''G. glutinosus'' is a "hyper-accumulating" fungus that absorbs and concentrates elements such as cesium more than 10,000-fold over background levels. This property can be used to decontaminate sites contaminated with radioactive cesium-137.

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderBoletales
FamilyGomphidiaceae
GenusGomphidius
SpeciesG. glutinosus