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Polyporus squamosus

Polyporus squamosus
Polyporus squamosus Molter.jpg
Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Polyporaceae
Genus: Polyporus
Species: P. squamosus
Binomial name
Polyporus squamosus
(Huds.) Quélet (1886)
Synonyms

Cerioporus squamosus

Polyporus squamosus
Mycological characteristics
pores on hymenium

cap is depressed

or offset
hymenium is decurrent
stipe is bare
spore print is white

ecology is saprotrophic

or parasitic

edibility: edible

or inedible

Cerioporus squamosus

cap is depressed

ecology is saprotrophic

edibility: edible

Polyporus squamosus aka Cerioporus squamosus (yet to be confirmed new taxonomy) is a basidiomycete bracket fungus, with common names including dryad's saddle and pheasant's back mushroom. It has a widespread distribution, being found in North America, Australia, Asia, and Europe, where it causes a white rot in the heartwood of living and dead hardwood trees. The name "dryad's saddle" refers to creatures in Greek mythology called dryads who could conceivably fit and ride on this mushroom, whereas the pheasant's back analogy derives from the pattern of colors on the bracket matching that of a pheasant's back.

The species was first described scientifically by British botanist William Hudson in 1778, who named it Boletus squamosus. It was given its current name "Polyporus Squamosus" in 1886 by Quélet.

This mushroom is commonly attached to dead logs or stumps at one point with a thick stem. Generally, the fruit body is 8–30 cm (3–12 in) across and up to 10 cm (4 in) thick. The body can be yellow to brown and has "squamules" or scales on its upper side. On the underside one can see the pores that are characteristic of the genus Cerioporus; they are made up of tubes packed together closely. The tubes are between 1 and 12 mm long. The stalk is thick and short, up to 5 cm (2.0 in) long. The fruit body will produce a white spore print if laid onto a sheet of paper. They can be found alone, in clusters of two or three, or forming shelves. Young specimens are soft but toughen with age. It is particularly common on dead elm and is also found on living maple trees.


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Wikipedia

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