Thaxterogaster purpurascens | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Cortinariaceae |
Genus: | Thaxterogaster |
Species: | T. purpurascens |
Binomial name | |
Thaxterogaster purpurascens (Fr.) Niskanen & Liimat. (2022) | |
Synonyms [1] | |
Agaricus purpurascens Fr. (1818) Contents |
Thaxterogaster purpurascens | |
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Gills on hymenium | |
Cap is convex | |
Hymenium is emarginate | |
Stipe is bare | |
Spore print is brown | |
Ecology is mycorrhizal | |
Edibility is edible |
Thaxterogaster purpurascens is a species of mushroom producing fungus in the family Cortinariaceae. [2] It is commonly known as the bruising webcap. [3] [4]
The species was first described as Agaricus purpurascens by Elias Magnus Fries in 1818. [5] In 1838 Fries reclassified it as Cortinarius pluvius. [6] [7]
The species was also placed in the segregate genus Phlegmacium by Aldabert Ricken as P. purpurascens. [1]
In 2022 the species was transferred from Cortinarius and reclassified as Thaxterogaster purpurascens based on genomic data. [8] This study also reclassified three of the variants of this species and transferred them to the distinct species: Thaxterogaster eumarginatus , Thaxterogaster occidentalis and Thaxterogaster subpurpurascens. [2]
The cap is 3–10 cm (1.2–3.9 in) in diameter, initially convex before flattening out somewhat. The margin is rolled inward, and viscid, cuticle which is often slightly spotted, smooth and with small fugacious viscid concolorous flocci. The color varies from dirty brownish or brownish-rust to ocher or grayish bluish in the center. The margin is fibrillose (covered with roughly parallel threadlike filaments), then smooth, with a violet or reddish-violet to grayish-brown tinge, then concolorous with the center of the cap. The gills are thin and crowded closely together, broadly emarginate (notched), dark violet when young, with edges often slightly denticulate (finely toothed). The tinge and intensity of the violet coloring is similar to that of the wood blewitt ( Collybia nuda ). The stem is solid, vivid violet paling to violet purple or violet brown, with a distinctly marginate bulb 3–4 cm (1.2–1.6 in) wide, otherwise almost cylindrical towards the base. The cortina (a cobweb-like partial veil consisting of silky fibrils) is violet. The flesh is violet lilac or violet, paling slightly when mature, and with a weak, unpleasant smell and mild taste. When cut or broken it turns purple, like the gills. It is an edible mushroom of medium quality. [9]
The spores are ellipsoid, slightly almond-shaped, verrucose, and measure 9–10 by 4.8–6 μm. The basidia (the spore-bearing cells) are 30–35 by 7–9 μm. On the edge of the gills there are thin-walled irregularly bottle-shaped cheilocystidia, which protrude 20–30 μm. The spore deposit is brownish rust to light brown. [9]
The fruit bodies of Thaxterogaster purpurascens grow in groups in coniferous forests, mainly on more acid soils and are quite rare. It is distributed throughout the temperate zone of the Northern Hemisphere, [9] and has been collected from Europe and North America. [10]
The Cortinariaceae are a large family of gilled mushrooms found worldwide, containing over 2100 species. The family takes its name from its largest genus, the varied species of the genus Cortinarius. Many genera formerly in the Cortinariaceae have been placed in various other families, including Hymenogastraceae, Inocybaceae and Bolbitiaceae.
Lactarius vietus is a species of fungus in the family Russulaceae, first described by Elias Magnus Fries. It produces moderately sized and brittle mushrooms, which grow on the forest floor or on rotting wood. The flattened-convex cap can vary in shape, sometimes forming the shape of a wide funnel. It is typically grey, but the colour varies. The species has crowded, light-coloured gills, which produce white milk. The spore print is typically whitish, but also varies considerably. The mushrooms typically have a strong, acrid taste and have been described as inedible, but other authors have described them as consumable after boiling. L. vietus feeds by forming an ectomycorrhizal relationship with surrounding trees, and it favours birch. It grows in autumn months and is fairly common in Europe, North America and eastern Asia.
Phlegmacium triumphans, also known as the birch webcap, or yellow girdled webcap is a basidiomycete mushroom in the family Cortinariaceae. It is found in Europe and regarded as edible by some authorities. However, others call it suspect and it resembles deadly species.
Cortinarius varius, also known as the contrary webcap, is a basidiomycete mushroom of the genus Cortinarius. The mushroom has orangish-yellow caps that reach up to 10 cm (3.9 in) in diameter, and thick club-shaped stems up to 10 cm (3.9 in) long.
Cortinarius traganus, also known as the gassy webcap or lilac conifer cortinarius, is a basidiomycete mushroom of the genus Cortinarius. The mushrooms are characterized by their lilac color, the rusty-brown gills and spores, and rusty-brown flesh in the stem.
Cortinarius infractus, commonly known as the sooty-olive Cortinarius or the bitter webcap, is an inedible basidiomycete mushroom of the genus Cortinarius. The fungus produces sooty-olive fruit bodies with sticky caps measuring up to 13 cm (5.1 in) in diameter. The fruit bodies contains alkaloids that inhibit the enzyme acetylcholinesterase.
Cortinarius hemitrichus, also known as the frosty webcap, is a basidiomycete mushroom of the genus Cortinarius. Young mushrooms are characterized by their brown cone-shaped caps covered with dense white fibrils.
Cortinarius delibutus, also known as the bluegill webcap or the yellow webcap, is a basidiomycete fungus of the genus Cortinarius. The fruit bodies are medium-sized, with shiny yellow caps on a sticky, yellow-banded club-shaped stem. The mushroom is found in Europe and North America, usually near birch or beech trees.
Cortinarius cinnamomeus, also known as the cinnamon webcap, is a basidiomycete mushroom of the genus Cortinarius. The fungus produces brown fruit bodies with caps up to 6 cm (2.4 in) wide and stems up to 12 cm (4.7 in) long. The closely crowded gills underside the cap are initially yellow before turning brown. Cortinarius cinnamomeus is common in damp places in coniferous forests. It is distributed throughout the temperate zone of the Northern Hemisphere.
Cortinarius anomalus, also known as the variable webcap, is a basidiomycete fungus of the genus Cortinarius. It produces a medium-sized mushroom with a grayish-brown cap up to 5 cm (2 in) wide, gray-violet gills and a whitish stem with pale yellow belts below. The mushroom grows solitarily or in scattered groups on the ground in deciduous and coniferous forests. It is found throughout the temperate zone of the northern hemisphere.
Cortinarius orellanus, commonly known as the fool's webcap or fools webcap, is a species of deadly fungus in the family Cortinariaceae native to Europe. Within the genus it belongs to a group known as the Orellani, all of which are highly toxic—eating them results in kidney failure, which is often irreversible. The mushroom is generally tan to brown all over.
Phaeocollybia christinae, commonly known as Christina's rootshank, is a species of fungus in the family Cortinariaceae. Found in the woodlands of Europe and eastern North America, it typically grows in sandy soil near conifer trees, especially spruce. The fruit bodies are characterized by a brownish cap with a pointed umbo, and a long stem that extends deeply into the soil.
Cortinarius camphoratus, commonly known as the goatcheese webcap, is an agaric fungus in the family Cortinariaceae. The fungus is found in Europe and North America, where its fruit bodies (mushrooms) grow on the ground in a mycorrhizal association with spruce and firs in coniferous forests. Mushrooms are characterized by pale blue lilac colors when young, and a strong distinctive odor. Sources disagree as to the edibility of the mushroom, but they are generally not recommended for eating.
Thaxterogaster argyrionus is a species of sequestrate (truffle-like) fungus in the family Cortinariaceae. Described as a new species in 2010, it is known only from New South Wales.
Thaxterogaster cinereoroseolus is a species of truffle-like fungus in the family Cortinariaceae. Found in New South Wales, Australia, the species was described as new to science in 2010.
Thaxterogaster nebulobrunneus is a species of truffle-like fungus in the family Cortinariaceae. Found in New South Wales, Australia, the species was described as new to science in 2010.
Thaxterogaster pluvius is a species of fungus in the family Cortinariaceae.
Phlegmacium boreicyanites is a species of fungus in the family Cortinariaceae
Cortinarius cyanites is a basidiomycete fungus of the genus Cortinarius native to Europe.
Aureonarius callisteus is a species of agaric fungus in the family Cortinariaceae. The common name of the species is tawny webcap.