''Collybia personata'' (also recognised as ''Lepista personata'', ''Lepista saeva'', ''Clitocybe saeva'' and ''Tricholoma personatum'', and commonly known as the field blewit and blue-leg) is a species of edible

fungus A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

commonly found growing in grassy areas across Europe and is morphologically related to the wood blewit '' Collybia nuda'' (formerly ''Lepista nuda''). This mushroom was moved to the genus '' Collybia'' in 2023.

Taxonomy

This species was originally proclaimed by

Elias Fries Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist. He is sometimes called the "Linnaeus of Mycology". In his works he described and assigned botanical names to hundreds of fungus and lichen sp ...

in 1818, as ''Agaricus personatus''.

Cooke Cooke is a surname of English and Irish origin derived from the occupation of cook and anglicisation of various Gaelic names. Variants include Cook and McCook. Irish surname origin Cooke (rather than Cook) is the usual spelling of the surnam ...

proposed in 1871 another name still in use until recently — ''Lepista personata''. Other names were to follow, namely ''Lepista saeva'' by P.D. Orton in 1960 and ''Clitocybe saeva'' by H.E. Bigelow & A.H. Smith in 1969, the latter placing the fungus in the larger genus ''

Clitocybe ''Clitocybe'' is a genus of mushrooms characterized by white, off-white, buff, cream, pink, or light-yellow spores, gills running down the stem, and pale white to brown or lilac coloration. They are primarily saprotrophic, decomposing forest grou ...

''. In

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

, the

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

''sævus'' is an

adjective An adjective (abbreviations, abbreviated ) is a word that describes or defines a noun or noun phrase. Its semantic role is to change information given by the noun. Traditionally, adjectives are considered one of the main part of speech, parts of ...

meaning either fierce, outrageous, angry or strong. Likewise, ''personatus'' is a

participle In linguistics, a participle (; abbr. ) is a nonfinite verb form that has some of the characteristics and functions of both verbs and adjectives. More narrowly, ''participle'' has been defined as "a word derived from a verb and used as an adject ...

meaning disguised, pretended or false.

Description

The

fruiting body The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

of the mushroom resembles an

agaric An agaric () is a type of fungal fruiting body characterized by the presence of a pileus (cap) that is clearly differentiated from the stipe (stalk), with lamellae (gills) on the underside of the pileus. It is a type of mushroom (or toadstool) ...

. The

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. The origin of the word "cap" comes from the Old French word "chapeau" which means "head co ...

is at first hemispherical or convex, becoming almost flat with maturity, up to 16 cm in diameter. The cap cuticle is colored cream to light brown with a smooth texture to the touch, and is often seen glistening when fresh. Along the periphery, the cap ends in a thick incurved margin which may unfold as the mushroom expands. The white to pallid

flesh Flesh is any aggregation of soft tissues of an organism. Various multicellular organisms have soft tissues that may be called "flesh". In mammals, including humans, ''flesh'' encompasses muscles, fats and other loose connective tissues, ...

is thick, firm and delicate upon slicing. The underside of the cap bears crowded pinkish, cream to light brown

gills A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...

, which are free or emarginate in relation to the stem. The

stem Stem or STEM most commonly refers to: * Plant stem, a structural axis of a vascular plant * Stem group * Science, technology, engineering, and mathematics Stem or STEM can also refer to: Language and writing * Word stem, part of a word respon ...

itself is cylindrical with a bulbous, or sometimes tapering base, and does not bear a

ring (The) Ring(s) may refer to: * Ring (jewellery), a round band, usually made of metal, worn as ornamental jewelry * To make a sound with a bell, and the sound made by a bell Arts, entertainment, and media Film and TV * ''The Ring'' (franchise), a ...

. The stem is covered by a striking lavender or lilac-coloured fibrous skin which fades in older individuals, and has a thick, firm flesh concolorous with that of the cap. It is up to 6–7 cm tall and 2.5–3 cm in diameter. Under a light microscope, the spores are seen hyaline to pink, ellipsoid in shape, and with fine warts. The spore dimensions are 6-8 by 4-5

μm The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System ...

. ''C. personata'' produces a pale pink

spore print 300px, Making a spore print of the mushroom ''Volvariella volvacea'' shown in composite: (photo lower half) mushroom cap laid on white and dark paper; (photo upper half) cap removed after 24 hours showing warm orange ("tussock") color spore print. ...

Distribution and habitat

''Collybia personata'' is found fruiting in open grasslands, parks, pastures, forest clearings, and in the vicinity of forest edges, unlike ''Collybia nuda'' which is commonly found in woodland. ''Collybia personata'' fruits gregariously, forming distinctive

fairy ring A fairy ring, also known as fairy circle, elf circle, elf ring or pixie ring, is a naturally occurring ring or arc of mushrooms. They are found mainly in forested areas, but also appear in grasslands or rangelands. Fairy rings are detectable by ...

s. Its fruiting season extends from summer to the beginning of winter, and is widespread in

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

. In the UK, the season extends from September through to December. It has also been allegedly reported from

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

.Arora, David. (1986). ''Mushrooms Demystified''. Berkeley, CA: Ten Speed Press. The California field blewit has also been described as '' Clitocybe tarda''.

Edibility

Field blewits are edible. Blewits can be eaten as a cream sauce or sautéed in

butter Butter is a dairy product made from the fat and protein components of Churning (butter), churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 81% butterfat. It is used at room temperature as a spread (food ...

; they can also be cooked like

tripe Tripe is a type of edible lining from the stomachs of various farm animals. Most tripe is from cattle and sheep. Types Beef Beef tripe is made from the muscle wall (the interior mucosal lining is removed) of a cow's stomach chambers: th ...

or as an

omelette An omelette (sometimes omelet in American English; see spelling differences) is a dish made from eggs (usually chicken eggs), fried with butter or oil in a frying pan. It is a common practice for an omelette to include fillings such as chiv ...

filling. Field blewits are often infested with fly larvae and don't store very well; they should therefore be used soon after picking. They are also very porous, so they are best picked on a dry day.

References

External links

*
"Mushroom-Collecting.com - The Blewit"

All that Rain Promises and More - Blewit
{{Taxonbar, from=Q25379773 Edible fungi personata Tricholomataceae Fungi of Europe Fungi found in fairy rings Taxa named by Elias Magnus Fries Fungus species