Amanita porphyria

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Amanita porphyria
Amanita porphyria Alb. & Schwein 355243 2013-08-06 (cropped).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Amanitaceae
Genus: Amanita
Species:
A. porphyria
Binomial name
Amanita porphyria
Alb. & Schwein.  : Fr.
Synonyms
  • Agaricus porphyreus (Alb. & Schwein.) Fr., Syst. mycol. (Lundae) 1: 14 (1821)
  • Agaricus recutitus Fr., Epicr. syst. mycol. (Uppsala): 6 (1838)
  • Amanita recutita (Fr.) Gillet, Hyménomycètes (Alençon): 42 (1874)
Amanita porphyria
Information icon.svg
Gills icon.png Gills on hymenium
Convex cap icon.svg Cap is convex
Free gills icon2.svg Hymenium is free
Ring and volva stipe icon.svg Stipe has a ring and volva
Transparent spore print icon.svg
Spore print is white
Mycorrhizal fungus.svgEcology is mycorrhizal
Mycomorphbox Inedible.pngEdibility is inedible

Amanita porphyria, also known as the grey veiled amanita or the porphyry amanita, [1] is a fairly common, inedible mushroom of the genus Amanita found in Europe and North America.

Contents

Taxonomy

This fungus was described in 1805 under the current name, Amanita porphyria, by Johannes Baptista von Albertini and Lewis David de Schweinitz in their work Conspectus Fungorum in Lusatiae superioris agro Niskiensi crescentium e methodo Persooniana ("An overview of fungi growing in the area of Niesky in Upper Lusatia, according to the methodology of Persoon"). [2] The name was then sanctioned by Fries, meaning that the name Amanita porphyria is given priority even if the normal nomenclatural rules would give precedence to another name and indeed the Danish mycologist Heinrich Christian Friedrich Schumacher had already described the same species as Agaricus gracilis in 1803. The sanctioning can be shown in the author string by means of a colon as in the following: "A. porphyria Alb. & Schwein. : Fr." [3] [2]

The epithet porphyria comes from the Ancient Greek word porphúra (πορφύρα), meaning the Tyrian purple dye. This colour may be seen in the cap of the mushroom (though it is not always evident). [4]

Description

Mushrooms in the Amanita citrina group. A. porphyria is in the bottom row, second from the left. Amanita citrina group.jpg
Mushrooms in the Amanita citrina group. A. porphyria is in the bottom row, second from the left.

The smooth cap is hemispherical when young and later flat, sometimes with grey patches of veil. [5] [6] It is about 4–10 centimetres (1+12–4 inches) in diameter, [7] [8] [6] and brown with either a purplish or a greyish hue. [7] [9] [6] [5] [10]

As normal in the genus Amanita , the gills are whitish and free from the stem and the spores are white. The gills darken when bruised. [11]

The stem is 5–12 cm high and 0.6–1.5 cm thick, with a basal bulb which may [7] [8] [9] or may not [10] be surrounded by a white membranous volva. [6] The fragile ring is grey-violet [7] [8] or blackened. [6] [5]

The flesh is white with a smell of raw potato [7] [6] [10] or radish. [7] [8]

The amyloid [8] spores are almost spherical with a diameter of 8–10 µm. [6] [10]

Similar species

A. porphyria is similar in overall shape and smell to the very common A. citrina , but the cap colour is different and the ring has a grey/violet coloration. [7] It can also be confused with the panther cap ( A. pantherina )

Distribution and habitat

A. porphyria usually grows on poor soil under coniferous trees, especially spruce, [10] but also fir, [8] hemlock, [9] and some deciduous ones such as birch. [6] It is mycorrhizal, living in symbiosis with the trees. [9]

It occurs from summer to autumn and is commoner in mountains or further to the north. [7] [8] In Europe it is very common in boreal or hemiboreal forests but less so in temperate areas. [6] It is also found in northern North America from east to west. There was some uncertainty whether North American specimens should really be classified under a different name, [9] but there is now firm DNA evidence that all the variants actually belong to the same species. [12] It has also been recorded in Australia. [13]

Toxicity

A. porphyria is not suitable for consumption. More importantly, it can easily be confused with much more poisonous species, such as the panther cap. [5]

See also

Related Research Articles

<i>Amanita phalloides</i> Poisonous mushroom (death cap)

Amanita phalloides, commonly known as the death cap, is a deadly poisonous basidiomycete fungus, one of many in the genus Amanita. Widely distributed across Europe, but introduced to other parts of the world since the late twentieth century, A. phalloides forms ectomycorrhizas with various broadleaved trees. In some cases, the death cap has been introduced to new regions with the cultivation of non-native species of oak, chestnut, and pine. The large fruiting bodies (mushrooms) appear in summer and autumn; the caps are generally greenish in colour with a white stipe and gills. The cap colour is variable, including white forms, and is thus not a reliable identifier.

<i>Amanita</i> Genus of mushrooms including some very deadly species

The genus Amanita contains about 600 species of agarics, including some of the most toxic known mushrooms found worldwide, as well as some well-regarded edible species. The genus is responsible for approximately 95% of fatalities resulting from mushroom poisoning, with the death cap accounting for about 50% on its own. The most potent toxin present in these mushrooms is α-Amanitin.

<i>Amanita fulva</i> Species of fungus

Amanita fulva, commonly called the tawny grisette or the orange-brown ringless amanita, is a basidiomycete mushroom of the genus Amanita. It is found frequently in deciduous and coniferous forests of Europe, and possibly North America.

<i>Amanita caesarea</i> Species of fungus

Amanita caesarea, commonly known as Caesar's mushroom, is a highly regarded edible mushroom in the genus Amanita, native to southern Europe and North Africa. While it was first described by Giovanni Antonio Scopoli in 1772, this mushroom was a known favorite of early rulers of the Roman Empire.

<span class="mw-page-title-main">Lewis David de Schweinitz</span> German-American botanist and mycologist (1780–1834)

Lewis David de Schweinitz was a German-American botanist and mycologist from Bethlehem, Pennsylvania. Considered the "Father of North American Mycology," he also made significant contributions to botany.

<i>Stereum sanguinolentum</i> Species of fungus

Stereum sanguinolentum is a species of fungus in the Stereaceae family. A plant pathogen, it causes red heart rot, a red discoloration on conifers, particularly spruces or Douglas-firs. Fruit bodies are produced on dead wood, or sometimes on dead branches of living trees. They are a thin leathery crust of the wood surface. Fresh fruit bodies will bleed a red-colored juice if injured, reflected in the common names bleeding Stereum or the bleeding conifer parchment. It can be the host of the parasitic jelly fungus Tremella encephala.

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<i>Geopyxis carbonaria</i> Species of fungus

Geopyxis carbonaria is a species of fungus in the genus Geopyxis, family Pyronemataceae. First described to science in 1805, and given its current name in 1889, the species is commonly known as the charcoal loving elf-cup, dwarf acorn cup, stalked bonfire cup, or pixie cup. The small, goblet-shaped fruitbodies of the fungus are reddish-brown with a whitish fringe and measure up to 2 cm across. They have a short, tapered stalk. Fruitbodies are commonly found on soil where brush has recently been burned, sometimes in great numbers. The fungus is distributed throughout many temperate regions of the Northern Hemisphere. It is found in Europe, Turkey, and North America. Although it is primarily a saprotrophic species, feeding on the decomposing organic matter remaining after a fire, it also forms biotrophic associations with the roots of Norway spruce.

<i>Faerberia</i> Genus of fungi

Faerberia is a fungal genus in the family Polyporaceae. It is a monotypic genus, containing the single species Faerberia carbonaria, which is commonly known as the firesite funnel due to its habitat of burned soil.

<i>Mucronella</i> Genus of fungi

Mucronella is a genus of fungi in the family Clavariaceae. Species in the genus resemble awl-shaped teeth that grow in groups without a common subiculum.

<i>Cystodermella cinnabarina</i> Species of fungus

Cystodermella cinnabarina is a basidiomycete fungus of the genus Cystodermella. Its fruiting body is a small agaric bearing a distinctive reddish-coloured grainy cap. It occurs in coniferous and deciduous forests throughout the world. Prior to 2002, this species belonged to genus Cystoderma, subsection Cinnabarina, under the name Cystoderma cinnabarinum which is still sometimes applied. Another often used synonym is Cystoderma terreyi.

<i>Amanita ceciliae</i> Species of fungus

Amanita ceciliae, commonly called snakeskin grisette, strangulated amanita, and the Cecilia's ringless amanita, is a basidiomycete fungus in the genus Amanita. First described in 1854 by Miles Joseph Berkeley and Christopher Edmund Broome, it was given its current name by Cornelis Bas in 1984. It is characterized by bearing a large fruit body with a brown cap 5–12 cm (2.0–4.7 in) across. The cap has charcoal-grey patches, which are easily removable. The stipe is 7–18 cm (2.8–7.1 in) long, white in colour, and there is no ring on it. It is slightly tapered to the top, and has irregular cottony bands girdling the base. The universal veil is grey. Spores are white, spherical in shape, non-amyloid, and measure 10.2–11.7 micrometres. The mushrooms are considered edible, but field guides typically advise caution in selecting them for consumption, due to risks of confusion with similar toxic species. A. ceciliae is found in woods throughout Europe and North America, where it fruits during summer and autumn.

<i>Ripartites tricholoma</i> Species of fungus

Ripartites tricholoma, commonly known as the bearded seamine, is a species of fungus in the family Tricholomataceae. It was first described scientifically as Agaricus tricholoma by Albertini and Lewis David von Schweinitz in 1805, and later transferred into the genus Ripartites by Petter Karsten in 1879. It is found in North America and Europe, and has also been collected in Costa Rica.

<i>Hygrophorus purpurascens</i> Species of fungus

Hygrophorus purpurascens, commonly known as the purple-red waxy cap, is a species of agaric fungus in the family Hygrophoraceae. Its cap has a pink background color with streaks of purplish red overlaid, and mature gills have red spots.

<i>Leucocoprinus fragilissimus</i> Species of fungus

Leucocoprinus fragilissimus, commonly known as the fragile dapperling, is a species of gilled mushroom in the family Agaricaceae.

<i>Geastrum minimum</i> Species of fungus

Geastrum minimum or tiny earthstar is an inedible species of mushroom belonging to the genus Geastrum. Although rare, it is widespread in Europe, where it occurs in a range of habitats. It is a priority species in the UK, where it has been found in the sand dunes at Holkham National Nature Reserve.

<i>Phlebia incarnata</i> Species of fungus

Phlebia incarnata is a species of polypore fungus in the family Meruliaceae. It is inedible.

<i>Multiclavula vernalis</i> Species of fungus

Multiclavula vernalis or the orange club-mushroom lichen is a species of clavarioid fungus in the Clavulinaceae family. It was originally named as a species of Clavaria in 1822 by Lewis David de Schweinitz. Ronald H. Petersen transferred it to Multiclavula in 1967.

<i>Cudoniella clavus</i> Species of fungus

Cudoniella clavus is a species of fungus in the family Helotiaceae. It was first described in 1805 by Johannes Baptista von Albertini and Lewis David de Schweinitz as Peziza clavus. British mycologist R. W. G. Dennis transferred it to Cudoniella in 1964. Fruit bodies of the jelly-like fungus consist of a disc-like cap measuring 0.4–1.2 cm with a thin stipe. They are usually cream in colour, sometimes with hints of ochre or violet. They grow on rotting twigs, stems, leaves, and cones that are submerged in water. Cudoniella clavus is a widespread and common species. It is inedible.

Amanita groenlandica is a species of fungus in the family Amanitaceae. It has been placed in Amanita sect. Vaginatae.

References

  1. "Standardized Common Names for Wild Species in Canada". National General Status Working Group. 2020.
  2. 1 2 Hewitt, David; Karakenian, Jason; Amram, Peter; Schmull, Michaela (January 2016). "An Early Mycota: Johannes Baptista von Albertini and Lewis David von Schweinitz's Conspectus fungorum in Lusatiae superioris agro Niskiensi crescentium, with a Translation of the Latin Introduction into English". Bartonia; Proceedings of the Philadelphia Botanical Club. 69: 47–61. Retrieved 2020-04-13.
  3. "Amanita porphyria page". Species Fungorum. Royal Botanic Gardens Kew. Retrieved 2020-04-13.
  4. Liddell, Henry George; Scott, Robert. "πορφύρα". A Greek-English Lexico. Perseus Digital Library. Retrieved 2020-04-13.
  5. 1 2 3 4 Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 33. ISBN   978-1-55407-651-2.
  6. 1 2 3 4 5 6 7 8 9 Knudsen, H.; Vesterholt, J., eds. (2018). Funga Nordica Agaricoid, boletoid, clavarioid, cyphelloid and gasteroid genera. Copenhagen: Nordsvamp. p. 383. ISBN   978-87-983961-3-0.
  7. 1 2 3 4 5 6 7 8 Bon, Marcel (1987). The Mushrooms and Toadstools of Britain and North-Western Europe. Hodder & Stoughton. p. 298. ISBN   0-340-39935-X.
  8. 1 2 3 4 5 6 7 Eyssartier, G.; Roux, P. (2013). Le guide des champignons France et Europe (in French). Belin. p. 296. ISBN   978-2-7011-8289-6.
  9. 1 2 3 4 5 Kuo, M. (May 2013). "Amanita porphyria". the MushroomExpert.Com Web site. Retrieved 2020-04-12.
  10. 1 2 3 4 5 Læssøe, H.; Petersen, Jens (2019). Fungi of Temperate Europe. Princeton University Press. p. 362. ISBN   9780691180373.
  11. Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 87. ISBN   978-0-88192-935-5.
  12. Tulloss, RE; Possiel, L. (2020). "Amanita porphyria". www.amanitaceae.org. Retrieved 2020-04-12.
  13. "Amanita porphyria Alb. & Schwein". Atlas of Living Australia. Commonwealth Scientific and Industrial Research Organisation (CSIRO). Retrieved 2020-04-13.

Further reading

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