Polyporus squamosus

Polyporus squamosus
Polyporus squamosus
Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Polyporaceae
Genus: Polyporus
Species: P. squamosus
Binomial name
Polyporus squamosus
(Huds.) Fr.
Synonyms
Polyporus squamosus
View the Mycomorphbox template that generates the following list
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

Polyporus squamosus is an basidiomycete bracket fungus, with common names including Dryad's saddle and Pheasant's back mushroom.[2] 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.

Contents

Taxonomy

The species was first described scientifically by British botanist William Hudson in 1778, who named it Boletus squamosus.[3] It was given its current name in 1821 by Elias Magnus Fries in his Systema Mycologicum.[4]

Description

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 Polyporus; 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.[2] 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.

Distribution and habitat

This organism is common and widespread, being found east of the Rocky Mountains in the United States and over much of Europe. It is also found in Australia and Asia. It commonly fruits in the spring, occasionally during autumn, and rarely during other seasons. Many mushroom hunters will stumble upon this when looking for morels during the spring as both have similar fruiting times, and this fungus can grow to a noticeable size of up to 50 cm (20 in) across.[5] It plays an important role in woodland ecosystems by decomposing wood, usually elm, but is occasionally a parasite on living trees. Other tree hosts include ash, beech, horse chestnut, lime, maple, planetree, poplar, and willow.[6]

Edibility and human uses

While P. squamosus is certainly not poisonous, it is generally not recognized as an edible mushroom unless the specimens are very young and tender. Cookery books dealing with preparation generally recommend gathering these while young, slicing them into small pieces, and cooking them over a low heat. Some people value the thick, stiff paper that can be made from this and many other mushrooms of the genus Polyporus. The mushroom's smell resembles watermelon rind.[2]

References

  1. ^ "Species synonymy for Polyporus squamosus (Huds.) Fr.". Index Fungorum. CAB International. http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=186284. Retrieved 2010-05-28. 
  2. ^ a b c Spahr DL. (2009). Edible and Medicinal Mushrooms of New England and Eastern Canada. Richmond, Calif: North Atlantic Books. pp. 131–35. ISBN 1-55643-795-1. http://books.google.com/books?id=nFZ-lwRXuNYC&lpg=PA131&dq=Polyporus%20squamosus&pg=PA131#v=onepage&q=Polyporus%20squamosus&f=false. Retrieved 2010-05-28. 
  3. ^ Hudson W. (1778). Flora Anglica (2 ed.). p. 626. 
  4. ^ Fries EM. (1821). Systema Mycologicum. p. 343. 
  5. ^ Lonsdale D, Butin H. (1995). Tree Diseases and Disorders: Causes, Biology, and Control in Forest and Amenity Trees. Oxford [Oxfordshire]: Oxford University Press. pp. 170–71. ISBN 0-19-854932-6. http://books.google.com/books?id=p7tVCv2EiTgC&lpg=PA169&dq=Polyporus%20squamosus&pg=PA170#v=onepage&q=Polyporus%20squamosus&f=false. Retrieved 2010-05-28. 
  6. ^ Schmidt O. (2006). Wood and Tree Fungi: Biology, Damage, Protection, and Use. Berlin: Springer. p. 199. ISBN 3-540-32138-1. http://books.google.com/books?id=lMXYJaWbO2YC&lpg=PA199&dq=Polyporus%20squamosus&pg=PA199#v=onepage&q=Polyporus%20squamosus&f=false. Retrieved 2010-05-28. 

Gallery

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Polyporus squamosus — Schuppiger Porling Schuppiger Porling (Polyporus squamosus) Systematik Klasse: Ständerpilze (Basidiomycetes) …   Deutsch Wikipedia

  • Polyporus squamosus — Polypore écailleux Polypore écailleux …   Wikipédia en Français

  • Polyporus squamosus — noun a fungus with a lateral stalk (when there is a stalk) and a scaly cap that becomes nearly black in maturity; widely distributed in the northern hemisphere • Syn: ↑scaly polypore • Hypernyms: ↑polypore, ↑pore fungus, ↑pore mushroom • Member… …   Useful english dictionary

  • Polyporus — Polyporus …   Wikipédia en Français

  • Polyporus — Porlinge Schuppiger Porling, (Polyporus squamosus) Systematik Abteilung: Basidienpilze (Basidiomycota) …   Deutsch Wikipedia

  • Polyporus — Polyporus …   Wikipédia en Français

  • Polyporus — noun type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers • Syn: ↑genus Polyporus • Hypernyms: ↑fungus genus • Member Holonyms: ↑Polyporaceae, ↑family Polyporaceae …   Useful english dictionary

  • Polypŏrus — (P. Fr.), Pilzgattung aus der Familie der Hymenomycetes Pileati; ist ausgezeichnet durch ein der Substanz des Hutes gleiches, mit ihm verwachsenes, von rundlichen Löchern durchbohrtes Hymenium; sehr reich an Arten, geschieden in die… …   Pierer's Universal-Lexikon

  • genus Polyporus — noun type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers • Syn: ↑Polyporus • Hypernyms: ↑fungus genus • Member Holonyms: ↑Polyporaceae, ↑family Polyporaceae • …   Useful english dictionary

  • Polypore — Polyporus Polyporus …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”