Macrolepiota procera

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Macrolepiota procera
ParasolMushroom.JPG
A young parasol mushroom
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Macrolepiota
Species:
M. procera
Binomial name
Macrolepiota procera
(Scop.) Singer (1948)
Synonyms [1]
  • Agaricus procerusScop. (1772)
  • Lepiota procera(Scop.) Gray (1821)
  • Amanita procera(Scop.) Fr. (1836)
  • Mastocephalus procerus(Scop.) Pat. (1900)
  • Leucocoprinus procerus(Scop.) Pat. (1900)
  • Lepiotophyllum procerum(Scop.) Locq. (1942)
Macrolepiota procera
Information icon.svg
Gills icon.png Gills on hymenium
Umbonate cap icon.svg Cap is umbonate
Free gills icon2.svg Hymenium is free
Ring stipe icon.svg Stipe has a ring
Transparent spore print icon.svg
Spore print is white
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Choice.pngEdibility is choice

Macrolepiota procera, the parasol mushroom, is a basidiomycete fungus with a large, prominent fruiting body resembling a parasol. It is a fairly common species on well-drained soils. It is found solitary or in groups and fairy rings in pastures and occasionally in woodland. It is widespread in temperate regions of Eurasia and possibly North America. Further research is needed to confirm whether specimens found in North America are the same species. [2]

Contents

Taxonomy

The fungus was first described in 1772 by Italian naturalist Giovanni Antonio Scopoli, who named it Agaricus procerus. [3] Rolf Singer transferred it to the genus Macrolepiota in 1948. [4]

Description

The height and cap diameter of a mature specimen may both reach 30 to 40 (50) cm. The stipe is relatively thin and reaches full height before the cap has expanded. The stipe is very fibrous in texture which renders it inedible (unless dried and ground). The surface is characteristically wrapped in a snakeskin-like pattern of scaly growths (therefore, known in some parts of Europe as the "snake's hat" or "snake's sponge"). The immature cap is compact and egg-shaped, with the cap margin around the stipe, sealing a chamber inside the cap. As it matures, the margin breaks off, leaving a fleshy, movable ring around the stipe. At full maturity, the cap is more or less flat, with a chocolate-brown umbo in the centre that is leathery to touch. Dark and cap-coloured flakes remain on the upper surface of the cap and can be removed easily. The gills are crowded, free, and white with a pale pink tinge sometimes present. The spore print is white. It has a pleasant nutty smell. When sliced, the white flesh may turn a pale pink.

Uses

Macrolepiota procera is a choice edible mushroom. [5] [6] It is very sought-after and popular in Europe, due in part to its large size, seasonal frequency, and versatility in the kitchen. In the UK, it may be found from July through to November.

The parasol mushroom is difficult to mistake for any other, especially in regions like Europe where the poisonous look-alike Chlorophyllum molybdites is rare. The spores and lamellae of C. molybdites are notably greener in appearance. [6] Nevertheless, as with picking any fungus for consumption, caution should be exercised at all times.

Macrolepiota procera is also edible raw, though its close lookalikes in the genus Chlorophyllum are toxic raw.

These mushrooms are popularly sauteed in melted butter. In central and eastern European countries this mushroom is usually prepared similarly to a cutlet. It is usually run through egg and breadcrumbs and then fried in a pan with some oil or butter. A savory Slovak recipe is to bake caps stuffed with ground pork, oregano, and garlic. Italians and Austrians also serve the young, still spherical caps stuffed with seasoned minced beef, baked in the same manner as stuffed peppers.

While the cap can be eaten any number of ways, the hollow, fibrous stem and the bulb are often discarded. However, they can be dried and ground into mushroom powder for use in eg. soups, stews and sauces.

Similar species

Macrolepiota procera, the parasol mushroom Parasol-1.jpg
Macrolepiota procera, the parasol mushroom

Smaller but similar in appearance is the common shaggy parasol (Chlorophyllum rhacodes). Chlorophyllum rhacodes, and other species in Chlorophyllum section Rhacodium, lacks the aforementioned snakeskin pattern on the stipe, this can help make distinctions between M. procera and Chlorophyllum rhacodes. Its edibility is suspect as it causes mild sickness in some people, especially when eaten raw. One must learn to distinguish the two as their geographical ranges overlap.

Differences from the parasol mushroom include its smaller dimensions, pungent (fruity) and reddening flesh when cut, lack of patterns on its stipe, and very shaggy cap surface.

Macrolepiota mastoidea , a European species, is yet another very large edible mushroom. Its dimensions are generally smaller than that of M. procera and the markings on its stipe less obvious. It is also much rarer.

Species of Agaricus have brown spores and the gills of mature specimens are never white.

There are a few poisonous species which can be mistaken for M. procera.

Related Research Articles

<span class="mw-page-title-main">Mushroom</span> Spore-bearing fruiting body of a fungus

A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. Toadstool generally denotes one poisonous to humans.

<i>Lepiota</i> Genus of fungi

Lepiota is a genus of gilled mushrooms in the family Agaricaceae. All Lepiota species are ground-dwelling saprotrophs with a preference for rich, calcareous soils. Basidiocarps are agaricoid with whitish spores, typically with scaly caps and a ring on the stipe. Around 400 species of Lepiota are currently recognized worldwide. Many species are poisonous, some lethally so.

<span class="mw-page-title-main">Agaricaceae</span> Family of fungi

The Agaricaceae are a family of basidiomycete fungi and include the genus Agaricus, as well as basidiomycetes previously classified in the families Tulostomataceae, Lepiotaceae, and Lycoperdaceae.

<span class="mw-page-title-main">Shaggy parasol</span> Species of fungus

Shaggy parasol is the common name for three closely related species of mushroom, Chlorophyllum rhacodes, C. olivieri and C. brunneum, found in North America, Europe and Southern Africa.

<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">Annulus (mycology)</span> Ring on mushroom stipe

An annulus is the ring-like or collar-like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remnants of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. It can also be called a ring which is what the Latin word annulus directly translates as. The modern usage of the Latin word originates from the early days of botany and mycology when species descriptions were only written in Latin. Outside of the formal setting of scientific publications which still have a Latin requirement, it will often just be referred to as a ring or stem ring in field guides and on identification websites.

<i>Coprinus comatus</i> Species of fungus

Coprinus comatus, commonly known as the shaggy ink cap, lawyer's wig, or shaggy mane, is a common fungus often seen growing on lawns, along gravel roads and waste areas. The young fruit bodies first appear as white cylinders emerging from the ground, then the bell-shaped caps open out. The caps are white, and covered with scales—this is the origin of the common names of the fungus. The gills beneath the cap are white, then pink, then turn black and deliquesce ('melt') into a black liquid filled with spores. This mushroom is unusual because it will turn black and dissolve itself in a matter of hours after being picked or depositing spores.

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

Amanita verna, commonly known as the fool's mushroom or the spring destroying angel, is a deadly poisonous basidiomycete fungus, one of many in the genus Amanita. Occurring in Europe in spring, A. verna associates with various deciduous and coniferous trees. The caps, stipes and gills are all white in colour.

<i>Chlorophyllum</i> Genus of fungi

Chlorophyllum is a genus of large agarics similar in appearance to the true parasol mushroom. Chlorophyllum was originally coined in 1898, a time when spore color was the deciding factor for differentiating genera. It was termed in order to describe the poisonous green-spored C. molybdites which shared many characteristics of the mushrooms within the genus Lepiota but lacked the all important white spores. The name derives from Greek Chloro meaning green and phyllo meaning leaf. It remained as a monotypic genus until recently when modern DNA analyses concluded that many of the mushrooms contained in the genus Macrolepiota actually had more in common genetically with the Chlorophyllum molybdites than with the other members of the Macrolepiota. The genus has a widespread distribution, with many species found in tropical regions. The best known members are the edible shaggy parasol, a name applied to three very similar species Chlorophyllum rhacodes, C. olivieri and C. brunneum, and the poisonous C. molybdites, which is widespread in subtropical regions around the world.

<i>Chlorophyllum molybdites</i> Species of fungus

Chlorophyllum molybdites, commonly known as the green-spored parasol, false parasol, green-spored lepiota and vomiter, is a widespread mushroom. Poisonous and producing severe gastrointestinal symptoms of vomiting and diarrhea, it is commonly confused with the shaggy parasol or shaggy mane, and is the most commonly misidentified poisonous mushroom in North America. Its large size and similarity to the edible parasol mushroom, as well as its habit of growing in areas near human habitation, are reasons cited for this. The nature of the poisoning is predominantly gastrointestinal.

<i>Macrolepiota</i> Genus of fungi

Macrolepiota is a genus of white spored, gilled mushrooms of the family Agaricaceae. The best-known member is the parasol mushroom (M. procera). The widespread genus contains about 40 species.

<i>Macrolepiota clelandii</i> Species of mushroom-forming fungus

Macrolepiota clelandii, commonly known as the slender parasol or graceful parasol, is a species of mushroom-forming fungus in the family Agaricaceae. The species is found in Australia and New Zealand, where it fruits singly or in small groups on the ground in eucalypt woodlands, parks, and roadsides. It is a tall mushroom up to roughly 20 cm (8 in), with a broad cap covered with distinctive rings of dark brown scales. The whitish gills on the cap underside are closely spaced and free from attachment to the slender stipe, which has a loose ring on its upper half, and a bulbous base. The edibility of the mushroom is not known with certainty, but closely related parasol mushrooms are edible and some are very sought after.

<i>Macrolepiota excoriata</i> Species of fungus

Macrolepiota excoriata is a mushroom in the family Agaricaceae.

<i>Saproamanita thiersii</i> Species of fungus

Saproamanita thiersii, commonly called Thiers' lepidella, is a North American saprotrophic basidiomycete fungus in the genus Saproamanita. It is a white, small mushroom. Its cap is convex, measuring 3.5–10 centimetres across, and the stipe is 8–20 cm (3–8 in) long. The spore print is white.

<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>Lepiota cristata</i> Species of fungus

Lepiota cristata, commonly known as the stinking dapperling, brown-eyed parasol, or the stinking parasol, is an agaric and possibly poisonous mushroom in the family Agaricaceae. A common and widespread species—one of the most widespread fungi in the genus Lepiota—it has been reported from Europe, northern Asia, North America, and New Zealand. It fruits on the ground in disturbed areas, such as lawns, path and road edges, parks, and gardens. The species produces fruit bodies characterized by the flat, reddish-brown concentric scales on the caps, and an unpleasant odour resembling burnt rubber. Similar Lepiota species can sometimes be distinguished from L. cristata by differences in cap colour, stipe structure, or odour, although some species can only be reliably distinguished through the use of microscopy.

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

Amanita ochrophylla is a fungus of the family Amanitaceae native to southeastern Australia. Its large and distinctive buff fruit bodies are common after rainfall.

<i>Chlorophyllum agaricoides</i> Species of fungus

Chlorophyllum agaricoides, known commonly as the puffball parasol, false puffball, or puffball agaric, is a species of fungus belonging to the family Agaricaceae. When young, it is edible, and has been traditionally eaten in Turkey for many years.

<i>Macrolepiota zeyheri</i> Species of fungus

Macrolepiota zeyheri is a species of mushroom producing fungus in the family Agaricaceae. In the Kilendu dialect it is known as djilo and in the Kilur dialect it is called n'volo mighom.

Lepiota ochrospora is a species of mushroom producing fungus in the family Agaricaceae.

References

  1. "GSD Species Synonymy: Macrolepiota procera (Scop.) Singer". Species Fungorum. CAB International. Retrieved 2015-10-22.
  2. "Macrolepiota procera" . Retrieved Jan 26, 2024.
  3. Scopoli JA. (1772). Flora carniolica (in Latin). Vol. 2 (2 ed.). Vienna: K.P. Krause. p. 441.
  4. Singer R. (1948). "New and interesting species of Basidiomycetes. II". Papers of the Michigan Academy of Sciences. 32: 103–150 (see p. 141).
  5. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 34. ISBN   978-1-55407-651-2.
  6. 1 2 Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 53. ISBN   978-0-7627-3109-1.
  7. "How to not pass up a parasol and how not to". Archived from the original on 14 December 2017. Retrieved 28 November 2009.
  8. Macrolepiota rhacodes and Chlorophyllum molybdites poisoning
  9. Loizides M, Kyriakou T, Tziakouris A. (2011). Edible & Toxic Fungi of Cyprus (in Greek and English). Published by the authors. pp. 132–33. ISBN   978-9963-7380-0-7.