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Parasola auricoma is a species of agaric fungus in the family Psathyrellaceae. First described scientifically in 1886, the species is found in Europe, Japan, and North America. The mushroom was reported in February 2019 in Colombia, in the city of Bogota by the mycologist Juan Camilo Rodriguez Martinez. The small, umbrella-shaped fruit bodies (mushrooms) of the fungus grow in grass or woodchips and are short-lived, usually collapsing with age in a few hours. The caps are up to 6 cm (2.4 in) wide, initially elliptical before flattening out, and colored reddish-brown to greyish, depending on their age and hydration. They are pleated with radial grooves extending from the center to the edge of the cap. The slender, whitish stems are up to 12 cm (4.7 in) long and a few millimeters thick. Microscopically, P. auricoma is characterized by the presence of setae (thick-walled bristles) in its cap cuticle. This characteristic, in addition to the relatively large, ellipsoid spores can be used to distinguish it from other morphologically similar Parasola species.
The species was first described in 1886 by French mycologist Narcisse Théophile Patouillard as Coprinus auricomus.[2] It was transferred to Parasola in 2001 when molecular phylogenetics was used to sort the coprinoid genera (i.e., Coprinus and the segregate genera Coprinopsis, Coprinellus, and Parasola) into natural monophyletic groups.[3] According to the nomenclatural database MycoBank, Parasola hansenii, described by Jakob Emanuel Lange in 1915 and named in honor of Danish mycologist Emil Christian Hansen,[4] is a facultative synonym (based on a different type).[5] Although this synonymy is accepted by several authorities,[6][7] P.D. Orton and Roy Watling disagree, suggesting that C. hansenii is a forgotten species that requires reanalysis.[8]
In a 2010 study of the type material of several coprinoid taxa, Laszlo Nagy and colleagues assigned Patouillard's plate 453 (containing the original description) as the lectotype for P. auricoma, as they believed it to be "sufficiently diagnostic for a clear-cut definition of this taxon."[7] They also determined that Pseudocoprinus besseyi and Coprinus elongatipes (both species were described in a 1946 publication by Alexander H. Smith and Lexemuel Ray Hesler[9]) were conspecific with P. auricoma.[7]
The placement of P. auricoma within Parasola is somewhat controversial.[10] It has often been classified in the section Auricomi, a grouping of species characterized by the absence of a veil, and the occasional presence of caulocystidia (cystidia on the stem), pileocystidia (cystidia on the cap surface), or dark setae-like elements.[11][12] Several molecular phylogenetics studies have confirmed its inclusion in the Parasola clade,[13][14][15] but its relationship to other members of the group have not been fully resolved due to limited sampling. A recent analysis suggests that in the phylogenetic tree of Parasola, P. auricoma and P. conopilus form a tritomy with the crown Parasola species.[10]
The fungus produces fruit bodies with caps that are initially egg-shaped with margins curled inward; as the cap expands, it becomes conical and eventually flat or slightly depressed in the center, ultimately reaching a diameter of 6 cm (2.4 in). The fruit bodies are hygrophanous, and so will change color depending on their state of hydration. When the fruit bodies are young and fresh, the caps are reddish brown and can glisten, especially if wet. As the mushroom matures, the outer edge of the cap turn a greyish color while the center remains reddish brown. Radial grooves extend from the center of the cap to the margins.[12] The caps have minute hairs (setae) that are visible through a hand lens.[16]
The gills are free from attachment to the stem, and have a width of 0.2–0.4 cm (0.08–0.16 in). They are initially whitish before turning greyish brown, and eventually become blackish with a dark margin as the spores mature. Unlike some other coprinoid mushrooms, the gills do not deliquesce—a process whereby the gills dissolve into an inky black mass as they release their spores. The whitish stem is up to 12 cm (4.7 in) long and 0.4 cm (0.16 in) thick, hollow, and fragile.[12] Young fruit bodies can have abundant, thick-walled hairs at the base of the stem, but these typically disappear as the mushroom matures.[7] The flesh is thin, fragile, yellowish to brownish, and lacks any appreciable odor or taste. The spore print is brownish-black.[12] The edibility of P. auricoma is not known with certainty, but the fruit bodies are small and insubstantial.[16]
The spores are ellipsoid, have a central germ pore, and measure 10–14 by 5.75–8 μm. The basidia (spore-bearing cells) are club-shaped and four-spored. The colorless pleurocystidia (cystidia on the gill face) measure 70–140 by 20–45 μm, and are roughly elliptical to flask-shaped, while the similarly shaped cheilocystidia (found on the gill edge) measure 50–95 by 15–25 μm. Clamp connections are present in the hyphae of all tissues of P. auricoma. The cap cuticle comprises a layer of club-shaped, thin-walled cells measuring 25–40 by 10–30 μm interspersed with long, dark, thick-walled setae. Yellowish-brown setae are plentiful on the cap surface, and consist of an elongated, hair-like segment up to 315 μm long, attached to the surface by a bulbous base that is 3–9 μm wide.[12]
Several characters serve to help distinguish Parasola auricoma from similar coprinoid mushrooms that grow in woodchips, including a lack of deliquescence, and the lack of a veil.[17] Microscopically, it is characterized by the long, gold-pigmented, thick-walled setae on the cap, and ellipsoid spores with a germ pore.[18] The distinctly grooved and pleated cap margin indicates that it is allied with the coprinoid species and not with the genus Psathyrella. Similar Parasola species include the common and widespread P. plicatilis,[12] P. leiocephala, P. lilatincta, and P. kuehneri. Only microscopy will definitively separate these from P. auricoma—none of them have setae on the cap.[19][20][21]
Parasola auricoma is a saprobic species,[22] and so obtains nutrients by breaking down organic matter into simpler molecules. The fruit bodies grow either singly or in groups, often in large numbers, at road sides in deciduous forests, or on grassy areas.[12] The mushrooms are short-lived, usually lasting only for a few hours before collapsing.[16] Common in Europe and North America (including Hawaii),[17] it has also been recorded from Japan. In Europe, fruit bodies appear most commonly in spring and summer months,[18] while in North America, fruiting is more common in the late summer and autumn, after rains.[16] The mushroom was reported in Bogotá, Colombia by Mycologist Juan Camilo Rodríguez Martínez.
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{{cite journal}}: Cite journal requires |journal= (help) Parasola auricoma is a species of agaric fungus in the family Psathyrellaceae. First described scientifically in 1886, the species is found in Europe, Japan, and North America. The mushroom was reported in February 2019 in Colombia, in the city of Bogota by the mycologist Juan Camilo Rodriguez Martinez. The small, umbrella-shaped fruit bodies (mushrooms) of the fungus grow in grass or woodchips and are short-lived, usually collapsing with age in a few hours. The caps are up to 6 cm (2.4 in) wide, initially elliptical before flattening out, and colored reddish-brown to greyish, depending on their age and hydration. They are pleated with radial grooves extending from the center to the edge of the cap. The slender, whitish stems are up to 12 cm (4.7 in) long and a few millimeters thick. Microscopically, P. auricoma is characterized by the presence of setae (thick-walled bristles) in its cap cuticle. This characteristic, in addition to the relatively large, ellipsoid spores can be used to distinguish it from other morphologically similar Parasola species.
Parasola auricoma es una especie de hongo en la familia Psathyrellaceae. Fue descrito por primera vez en 1886, la especie se encuentra en Europa, Japón, y América del Norte.
Los pequeños cuerpos fructíferos con forma de paraguas crecen en césped o pilas de trocitos de madera y vive poco, por lo general unas pocas horas. Los sombreros alcanzan unos 6 cm de diámetro, inicialmente son elípticos antes de aplanarse, y de color marrón rojizo a grisáceo, dependiendo de su edad e hidratación. Tiene ranuras radiales que se extienden desde el centro hasta el borde del sombrero. Los estipe son esbeltos y blancuzcos midiendo 12 cm de largo y unos pocos mm de espesor. A nivel microscópico, P. auricoma se caracteriza por la presencia de "setas" (cerdas de paredes gruesas) en la cutícula del sombrero. Esta característica, además de las esporas elipsoides relativamente grandes, se puede usar para distinguirlo de otras especies morfológicamente similares de Parasola.
El hongo produce cuerpos fructíferos con sombreros que inicialmente tienen forma de huevo con márgenes curvados hacia adentro; a medida que el sombrero se expande, se vuelve cónico y eventualmente plano o ligeramente deprimido en el centro, llegando a alcanzar un diámetro de 6 cm. Los cuerpos fructíferos son higrófagos, por lo que cambiarán de color según su estado de hidratación. Cuando los cuerpos fructíferos son jóvenes y frescos, los sombreros son de color marrón rojizo y pueden brillar, especialmente si están mojados. A medida que el hongo madura, el borde exterior del sombrero adquiere un color grisáceo mientras que el centro permanece marrón rojizo. Las ranuras radiales se extienden desde el centro del sombrero hasta los márgenes.[1] Los sombreros poseen cerdas diminutas que son visibles con una lupa.[2]
Las laminillas no están adheridas al tallo y tienen un ancho de 0.2–0.4 cm. Inicialmente son blancas antes de volverse marrón grisáceo, y eventualmente se vuelven negruzcas con un margen oscuro a medida que las esporas maduran. A diferencia de otros hongos coprinoides, las laminillas no se auto digieren, un proceso por el cual las laminillas se disuelven en una masa negra como la tinta al liberar sus esporas. El tallo blanquecino es de hasta 12 cm de largo y 0,4 cm de grosor, hueco y frágil.[1] Los cuerpos fructíferos jóvenes pueden tener abundantes cerdas e paredes gruesas en la base del tallo, pero estos generalmente desaparecen a medida que el hongo madura.[3] La carne es delgada, frágil, de color amarillento a marrón y carece de cualquier olor o sabor apreciable. La esporada es de color negro parduzco.[1] La comestibilidad de P. auricoma no se conoce con certeza, pero los cuerpos fructíferos son pequeños e insustanciales. [2]
Parasola auricoma es una especie saprotrófica,[4] y por lo tanto obtiene sus nutrientes de descomponer materia orgánica y producir moléculas más simples. Los cuerpos fructíferos crecen solos o en grupos, a menudo de muchos ejemplares, a la vera de caminos con bosques caducifolios o en zonas con pastos.[1] La vida del hongo es breve, por lo general unas pocas horas antes de colapsar.[2] Común en Europa y América del Norte (incluido Hawái),[5] se lo ha encontrado también en Japón. En Europa, los cuerpos fructíferos aparecen principalmente en primavera y verano,[6] mientras que en América del Norte, los cuerpos fructíferos aparecen a fines del verano y otoño, luego de las lluvias.[2]
Datos: Q257253
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Parasola auricoma es una especie de hongo en la familia Psathyrellaceae. Fue descrito por primera vez en 1886, la especie se encuentra en Europa, Japón, y América del Norte.
Los pequeños cuerpos fructíferos con forma de paraguas crecen en césped o pilas de trocitos de madera y vive poco, por lo general unas pocas horas. Los sombreros alcanzan unos 6 cm de diámetro, inicialmente son elípticos antes de aplanarse, y de color marrón rojizo a grisáceo, dependiendo de su edad e hidratación. Tiene ranuras radiales que se extienden desde el centro hasta el borde del sombrero. Los estipe son esbeltos y blancuzcos midiendo 12 cm de largo y unos pocos mm de espesor. A nivel microscópico, P. auricoma se caracteriza por la presencia de "setas" (cerdas de paredes gruesas) en la cutícula del sombrero. Esta característica, además de las esporas elipsoides relativamente grandes, se puede usar para distinguirlo de otras especies morfológicamente similares de Parasola.
Parasola auricoma (Pat.) Redhead, Vilgalys & Hopple, in Redhead, Vilgalys, Moncalvo, Johnson & Hopple (2001)
0,5-3 x 0,3-1,8 cm quando è chiuso, 1–6 cm di diametro quando aperto, prima ovoidale, poi ottuso-conico e infine convesso
Non deliquescenti, libere al gambo, lineari, con filo intero, prima grigiastre, poi marroni e infine nere per lesporey .
7-12 x 0,2-0,3 cm, glabro, cilindrico, leggermente rastremato all'apice, sub bulboso alla base, da biancastro a bianco-crema.
Carne insignificante, senza odore e sapori particolari, poco deliquescente.
Parasola auricoma (Pat.) Redhead, Vilgalys & Hopple, in Redhead, Vilgalys, Moncalvo, Johnson & Hopple (2001)
Capel fin a 2,5 cm, piat o a pupa, ross motobin viv al disch, bes grisastr dantorn. Gamba àuta fin a 8 cm e larga fin a 0,3 cm, biancastra. Motobin a sloa.
A chërs a tèra. A la prima prest.
A venta mai mangé un bolè trovà se un a l'é nen un bon conossidor dij bolè!
Sensa anteresse alimentar.
Coprinus auricomus Patouillard
Capel fin a 2,5 cm, piat o a pupa, ross motobin viv al disch, bes grisastr dantorn. Gamba àuta fin a 8 cm e larga fin a 0,3 cm, biancastra. Motobin a sloa.
AmbientA chërs a tèra. A la prima prest.
Comestibilità A venta mai mangé un bolè trovà se un a l'é nen un bon conossidor dij bolè!
Sensa anteresse alimentar.
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