Collybia cirrhata | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Tricholomataceae |
Genus: | Collybia |
Species: | C. cirrhata |
Binomial name | |
Collybia cirrhata | |
Synonyms [1] [2] | |
Agaricus amanitae Batsch (1786) |
Collybia cirrhata | |
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Gills on hymenium | |
Cap is convex or flat | |
Hymenium is adnate | |
Stipe is bare | |
Spore print is white | |
Ecology is saprotrophic | |
Edibility is unknown |
Collybia cirrhata is a species of fungus in the family Tricholomataceae of the order Agaricales (gilled mushrooms). The species was first described in the scientific literature in 1786, but was not validly named until 1803. Found in Europe, Northern Eurasia, and North America, it is known from temperate, boreal, and alpine or arctic habitats. It is a saprobic species that grows in clusters on the decaying or blackened remains of other mushrooms. The fruit bodies are small, with whitish convex to flattened caps up to 11 mm (3⁄8 in) in diameter, narrow white gills, and slender whitish stems 8–25 mm (3⁄8–1 in) long and up to 2 mm (0.08 in) thick. C. cirrhata can be distinguished from the other two members of Collybia by the absence of a sclerotium at the base of the stem. The mushroom is of unknown edibility.
Phylogeny and relationships of C. cirrhata and closely related fungi based on ribosomal DNA sequences. [3] |
The species first appeared in the scientific literature in 1786 as Agaricus amanitae by August Johann Georg Karl Batsch; [4] Agaricus amanitae subsp. cirrhatus, proposed by Christian Hendrik Persoon in 1800, [5] is considered synonymous. [2] A later combination based on this name, Collybia amanitae, was published by Hanns Kreisel in 1987. [6] However, Kreisel noted the combination to be "ined.", [7] indicating that he did not believe the name to be validly published, according to article 34.1 of the rules for botanical nomenclature, which states: "A name is not validly published ... when it is not accepted by the author in the original publication." [8]
The first valid name was published in 1803 by Heinrich Christian Friedrich Schumacher, who called the species Agaricus cirrhatus. [9] French mycologist Lucien Quélet transferred it to Collybia in 1879, [10] resulting in the binomial by which it is currently known. The species had also been transferred to Microcollybia by Georges Métrod in 1952 [11] and again by Lennox in 1979 (because Métrod's transfer was considered a nomen nudum , and thus invalid according to nomenclatural rules); [12] the genus Microcollybia has since been wrapped into Collybia. [13]
Molecular phylogenetics have shown that C. cirrhata forms a monophyletic clade with the remaining two species of Collybia. Because C. cirrhata is the only one of the three Collybia species lacking sclerotia, it has been suggested that this character trait is an anapomorphy—that is, unique to a single, terminal species within a clade. [3]
The specific epithet is derived from the Latin cirrata, meaning "curled". [14] Charles Horton Peck called it the "fringed-rooted Collybia". [15] In the United Kingdom, it is commonly known as the "piggyback shanklet". [16]
The cap is initially convex when young, later becoming convex to flattened or slightly depressed in the center, reaching a diameter of 3–11 mm (1⁄8–3⁄8 in). The cap margin starts out rolled or curved inward, but straightens out as it matures. The cap surface ranges from dry to moist, smooth to covered with fine whitish hairs, and is mostly even with translucent radial grooves at the margin. It is subhygrophanous (changing color somewhat depending on hydration), becoming a grayish-orange when watery or old, and usually is white with a very faint pinkish flush when fresh. The flesh is whitish, quite thin, and has no distinctive taste or odor. The gills are adnate to slightly arcuate (curved into the shape of a bow) with a tooth (meaning that the gills curve up to join the stem but then, very close to the stem, the gill edge curves down again). [17] There are between 12 and 20 gills that extend completely from the cap edge to the stem, and three to five tiers of lamellulae (shorter gills that do not extend completely from the cap edge to the stem). [7] The gills are thin, narrow to moderately broad, and white to pinkish-buff. The gill edges are even, and the same color as the gill faces. [18]
The stem is 8–25 mm (3⁄8–1 in) long and up to 2 mm (1⁄16 in) thick, equal in width throughout to slightly enlarged downward, flexible and filamentous but not fragile. The stem surface is dry, whitish to grayish-orange, sometimes with tiny hairs on the upper portion that become coarser near the base. The stem base often has rhizomorph-like strands or copious whitish mycelia. The stem, unlike the other two species of Collybia, do not originate from a sclerotium. The stem becomes hollow as it matures. [18] C. cirrhata is too small and insubstantial to be considered edible. [17]
In deposit, the spores appear white. [7] Individual spores are ellipsoid to tear-shaped in profile, obovoid to ellipsoid or roughly cylindric in face or back view, with dimensions of 4.8–6.4 by 2–2.8 (sometimes up to 3.5) μm. They are smooth, inamyloid, and acyanophilous (unreactive to staining with Melzer's reagent and methyl blue, respectively). The basidia (spore-bearing cells of the hymenium) are roughly club-shaped, four-spored, and measure 17.5–21 by 4.8–5.6 μm. The gills do not have cystidia. The gill tissue is made of hyphae that are interwoven to roughly parallel, and inamyloid. The hyphae are 2.8–8.4 μm in diameter and smooth. The cap tissue is made of interwoven hyphae beneath the center of the cap, but radially oriented over the gills; it too is inamyloid. These hyphae are 3.5–8.4 μm in diameter, smooth, but have irregularly thickened walls. The cap cuticle is an ixocutis—a gelatinized layer of hyphae lying parallel to the cap surface. The hyphae comprising this layer are 2.8–6.4 μm in diameter, smooth, and thin-walled. They are covered with scattered, short pouch-like outgrowths. The cuticle of the stem is a layer of parallel, vertically oriented hyphae; the hyphae measure 3.5–4.2 μm, and are smooth, slightly thick-walled, and pale yellowish-brown in alkaline solution. They give rise to a covering of tangled and branched caulocystidia (cystidia on the stem) that have multiple septa. The caulocystidia are 2.8–4.8 μm in diameter, smooth, thin walled, and shaped like contorted cylinders. Clamp connections are present in the hyphae of all tissues. [18]
Collybia cirrhata is most likely to be confused with the remaining members of Collybia , which have a similar external appearance. C. tuberosa is distinguished by its dark reddish-brown sclerotia that resemble apple seeds, while C. cookei has wrinkled, often irregularly shaped sclerotia that are pale yellow to orange. [19] Other similar mushrooms include Baeospora myosura and species of Strobilurus , [20] but these species only grow on pine cones.
Like all species remaining in the genus Collybia, C. cirrhata is saprobic, and is typically found growing on the decaying or blackened remains of other mushrooms; [19] occasionally the fruit bodies may be found growing on moss or soil without any apparent connection to decaying mushrooms, [21] although these observations may represent instances where the remnant host tissue—possibly from a previous season—has decayed to such an extent that it remains as buried fragments in the substrate. [3] Known hosts include Lactarius , Russula , Meripilus giganteus , and Bovista dermoxantha . [7] [22]
Collybia cirrhata is known from temperate, boreal, and alpine or arctic habitats. The fungus is widespread in Europe, [23] including Bulgaria, [24] Denmark, [25] Germany, [26] Greece, [21] Latvia, [27] Scandinavia, [28] Slovakia, [29] Switzerland, [22] Turkey, [30] and the United Kingdom. [31] The mushroom is also common in northern montane regions of North America. [19] In Asia, the fungus has been reported in Korea, [32] and in Hokkaido, northern Japan. It is also known from Greenland. [22] A 2009 publication suggested that based on the known evidence, the species' distribution may be circumboreal. [7]
Psilocybe tampanensis is a very rare psychedelic mushroom in the family Hymenogastraceae. Originally collected in the wild in a sandy meadow near Tampa, Florida, in 1977, the fungus would not be found in Florida again until 44 years later. The original Florida specimen was cloned, and descendants remain in wide circulation. The fruit bodies (mushrooms) produced by the fungus are yellowish-brown in color with convex to conic caps up to 2.4 cm (0.9 in) in diameter atop a thin stem up to 6 cm (2.4 in) long. Psilocybe tampanensis forms psychoactive truffle-like sclerotia that are known and sold under the nickname "philosopher's stones". The fruit bodies and sclerotia are consumed by some for recreational or entheogenic purposes. In nature, sclerotia are produced by the fungus as a rare form of protection from wildfires and other natural disasters.
Gymnopus dryophilus is a mushroom commonly found in temperate woodlands of Europe and North America. It is generally saprophytic, but occasionally also attacks living wood. It belongs to section Levipedes of the genus, being characterized by a smooth stem having no hairs at the base. Until recently it was most frequently known as Collybia dryophila.
Mythicomyces is a fungal genus in the family Mythicomycetaceae. A monotypic genus, it contains the single species Mythicomyces corneipes, first described by Elias Fries in 1861. The fungus produces fruit bodies with shiny yellowish-orange to tawny caps that are 1–3 cm (0.4–1.2 in) in diameter. These are supported by stems measuring 2–5.7 cm (0.8–2.2 in) long and 1–2 mm thick. A rare to uncommon species, it is found in northern temperate regions of North America and Europe, where it typically fruits in groups, in wet areas of coniferous forests. There are several species with which M. corneipes might be confused due to a comparable appearance or similar range and habitat, but microscopic characteristics can be used to reliably distinguish between them.
Hygrocybe virescens, commonly known as the lime-green waxy cap, is a species of agaric mushroom in the family Hygrophoraceae. The lime-green colored mushroom has a limited geographical distribution, having been reported only from California, Washington, and Mexico.
Cyptotrama asprata, commonly known as the golden-scruffy collybia or spiny woodknight is a saprobic species of mushroom in the family Physalacriaceae. Widely distributed in tropical regions of the world, it is characterized by the bright orange to yellow cap that in young specimens is covered with tufts of fibrils resembling small spikes. This fungus has had a varied taxonomical history, having been placed in fourteen genera before finally settling in Cyptotrama. This species is differentiated from several other similar members of genus Cyptotrama by variations in cap color, and spore size and shape.
Mycena acicula, commonly known as the orange bonnet, or the coral spring Mycena, is a species of fungus in the family Mycenaceae. It is found in Asia, the Caribbean, North America and Europe. The fruit bodies, or mushrooms, of the fungus grow on dead twigs and other woody debris of forest floors, especially along streams and other wet places. They have small orange-red caps, up to 1 cm (0.4 in) in diameter, held by slender yellowish stems up to 6 cm (2.4 in) long. The gills are pale yellow with a whitish edge. Several other Mycena species look similar, but may be distinguished by differences in size and/or microscopic characteristics. M. acicula is considered inedible because of its small size.
Atheniella adonis, which has the recommended name of scarlet bonnet in the UK, is a species of agaric in the family Cyphellaceae. Found in Asia, Europe, and North America, it produces small orangish to reddish mushrooms with caps up to 1.2 cm (0.5 in) in diameter and thin pinkish-white stems reaching 4 cm (1.6 in) long. The fungus typically grows in conifer woods and peat bogs, suggesting a preference for acidic environments. The appearance of several atypical fruitings on deciduous wood in the Netherlands in the late 1970s was attributed to increases in atmospheric pollution that raised the acidity of the wood substrate.
Atheniella flavoalba, which has the recommended name of ivory bonnet in the UK, is a species of agaric in the family Cyphellaceae. The cap is initially conical, before becoming convex and then flat; it may reach up to 1.5 cm (0.6 in) across. The cap is ivory-white to yellowish white, sometimes more yellowish at the center. The tubular stems are up to 8 cm (3.1 in) long and 2.5 mm (0.10 in) thick, and have long, coarse white hairs at their bases. Atheniella flavoalba is found in Europe, the Middle East, and North America, where it grows scattered in pastures or in dense groups under conifers and on humus in oak woods.
Dendrocollybia is a fungal genus in the family Tricholomataceae of the order Agaricales. It is a monotypic genus, containing the single species Dendrocollybia racemosa, commonly known as the branched collybia or the branched shanklet. The somewhat rare species is found in the Northern Hemisphere, including the Pacific Northwest region of western North America, and Europe, where it is included in several Regional Red Lists. It usually grows on the decaying fruit bodies of other agarics—such as Lactarius and Russula—although the host mushrooms may be decayed to the point of being difficult to recognize.
Hygrophorus agathosmus, commonly known as the gray almond waxy cap or the almond woodwax, is a species of fungus in the family Hygrophoraceae. It was first described by Elias Magnus Fries in 1815; Fries gave it its current name in 1838. A widespread species, it is distributed in the United States, Europe, Africa, and India, and is found growing under spruce and pine in mixed forests. The fruit bodies are characterized by a light grayish cap that measures up to 8 cm (3.1 in) in diameter, waxy gills, a dry stem, and the distinct odor of bitter almonds. An edible but bland-tasting mushroom, extracts of the fruit bodies have been shown in laboratory tests to have antimicrobial activity against various bacteria that are pathogenic to humans.
Mycena intersecta is a species of mushroom in the family Mycenaceae. First reported as a new species in 2007, it is known only from central Honshu, in Japan, where it is found growing solitarily or scattered, on dead leaves in lowland forests dominated by oak. The mushrooms have olive-brown caps up to 12 mm (0.47 in) in diameter atop slender stems that are 50 to 80 mm long by 0.7 to 1.2 mm thick. On the underside of the cap are the distantly spaced, whitish gills that have cross-veins running between them. Microscopic characteristics of the mushroom include the smooth, irregularly cylindrical cheilocystidia, the absence of pleurocystidia, the diverticulate elements of the cap cuticle, the broadly club-shaped to irregularly shaped caulocystidia, the weakly dextrinoid flesh, and the absence of clamp connections. The edibility of the mushroom is unknown.
Mycena nidificata is a species of fungus in the family Mycenaceae of the Agaricales. First collected in 2000 and reported as a new species in 2007, it is known only from Kanagawa, Japan, where it grows on the floor of oak forests. The dark brown irregularly wrinkled cap measures up to 25 mm (1.0 in) in diameter. The cap is supported by a thin stem up to 50 mm (2.0 in) long, which is covered at the base by a whitish hairlike growth, and attached to white, cord-like rhizomorphs—aggregations of mycelium that resemble plant roots. The underside of the cap features thin, distantly spaced grayish gills that have distinct veins running between them. At a microscopic level, distinguishing characteristics include the inamyloid spores, the club-shaped cheilocystidia with finger-like appendages, the diverticulate cells in the outer layer of cap and stem, and the presence of clamp connections.
Mycena aurantiomarginata, commonly known as the golden-edge bonnet, is a species of agaric fungus in the family Mycenaceae. First formally described in 1803, it was given its current name in 1872. Widely distributed, it is common in Europe and North America, and has also been collected in North Africa, Central America, and Japan. The fungus is saprobic, and produces fruit bodies (mushrooms) that grow on the floor of coniferous forests. The mushrooms have a bell-shaped to conical cap up to 2 cm in diameter, set atop a slender stipe up to 6 cm long with yellow to orange hairs at the base. The fungus is named after its characteristic bright orange gill edges. A microscopic characteristic is the club-shaped cystidia that are covered with numerous spiky projections, resembling a mace. The edibility of the mushroom has not been determined. M. aurantiomarginata can be distinguished from similar Mycena species by differences in size, color, and substrate. A 2010 publication reported the discovery and characterization of a novel pigment named mycenaaurin A, isolated from the mushroom. The pigment is responsible for its color, and it has antibiotic activity that may function to prevent certain bacteria from growing on the mushroom.
Collybia tuberosa, commonly known as the lentil shanklet or the appleseed coincap, is an inedible species of fungus in the family Tricholomataceae, and the type species of the genus Collybia. Like the two other members of its genus, it lives on the decomposing remains of other fleshy mushrooms. The fungus produces small whitish fruit bodies with caps up to 1 cm (0.4 in) wide held by thin stems up to 5 cm (2.0 in) long. On the underside of the cap are closely spaced white gills that are broadly attached to the stem. At the base of the stem, embedded in the substrate is a small reddish-brown sclerotium that somewhat resembles an apple seed. The appearance of the sclerotium distinguishes it from the other two species of Collybia, which are otherwise very similar in overall appearance. C. tuberosa is found in Europe, North America, and Japan, growing in dense clusters on species of Lactarius and Russula, boletes, hydnums, and polypores.
Collybia cookei is a species of fungus in the family Tricholomataceae, and one of three species in the genus Collybia. It is known from Europe, Asia, and North America. The fungus produces fruit bodies that usually grow on the decomposing remains of other mushrooms, like Meripilus giganteus, Inonotus hispidus, or species of Russula; occasionally fruit bodies are found on rich humus or well-decayed wood. The fungus produces small white mushrooms with caps up to 9 mm (0.35 in) in diameter, supported by thin stems that originate from a yellowish-brown sclerotium. The mushroom is difficult to distinguish from the other two species of Collybia unless an effort is made to examine the sclerotia, which is usually buried in the substrate. The edibility of the mushroom has not been determined.
Marasmius funalis is a species of Marasmiaceae fungus known only from Japan. The species produces small mushrooms with reddish-brown caps up to 6 millimetres (0.24 in) in diameter and dark-brown, threadlike stems of up to 50 millimetres (2.0 in) in length. The species has a number of distinctive microscopic features, including very long cystidia on the stem, visible as bristles. Described in 2002 by Haruki Takahashi, the species grows on dead wood. The closest relative of M. funalis is M. liquidambari, known from Mexico and Papua New Guinea, and it is also similar in appearance to M. hudonii and Setulipes funaliformis, the latter of which was named after M. funalis.
Hygrophorus olivaceoalbus, commonly known as the olive wax cap or sheathed waxy cap, is a species of fungus in the genus Hygrophorus. The fruit bodies (mushrooms) appear from midsummer to late autumn under conifers in North American and Eurasian mountain forests. The mushrooms have olive-brown, slimy caps with dark streaks and a dark umbo; the caps measure 3 to 12 cm in diameter. Other characteristic features include a slimy stem up to 12 cm long that is spotted with ragged scales up to a ring-like zone. As its name implies, the mushroom has a waxy cap and gills. It is native to North America and across the northern regions of Europe. According to a publication by the Council of Europe, the fungus is nearly extinct in France.
Pholiota nubigena, commonly known as the gastroid pholiota or the bubble gum fungus, is a species of secotioid fungus in the family Strophariaceae. It is found in mountainous areas of the western United States, where it grows on rotting conifer wood, often fir logs. It fruits in spring, often under snow, and early summer toward the end of the snowmelt period in high mountain forests. Fruit bodies appear similar to unopened mushrooms, measuring 1–4 centimetres tall with 1–2.4 cm diameter caps that are whitish to brownish. They have a short but distinct whitish stipe that extend through the internal spore mass (gleba) of the fruit body into the cap. The gleba consists of irregular chambers made of contorted gills that are brownish in color. A whitish, cottony partial veil is present in young specimens, but it often disappears in age and does not leave a ring on the stipe.
Stropharia caerulea, commonly known as the blue roundhead, is a species of mushroom forming fungus in the family Strophariaceae. It is a somewhat common species found in Europe and North America, where it grows as a saprophyte in meadows, roadsides, hedgerows, gardens, and woodchip mulch. S. caerulea was officially described to science in 1979, although it was known to be a distinct species for about two centuries before that. The scientific name Stropharia cyanea, as defined by Tuomikoski in 1953, and used by several later authors, is a synonym of S. caerulea.
Collybiopsis confluens, commonly known as the clustered toughshank, is a type of mushroom from the Omphalotaceae family. The fruiting body appears from summer until autumn in deciduous and coniferous forests. Collybiopsis confluens is not an edible mushroom.