Recent from talks
Entoloma sinuatum
Knowledge base stats:
Talk channels stats:
Members stats:
Entoloma sinuatum
Entoloma sinuatum (commonly known as the livid entoloma, livid agaric, livid pinkgill, leaden entoloma, and lead poisoner) is a poisonous mushroom found across Europe and North America. Some guidebooks refer to it by its older scientific names of Entoloma lividum or Rhodophyllus sinuatus. The largest mushroom of the genus of pink-spored fungi known as Entoloma, it is also the type species. Appearing in late summer and autumn, fruit bodies are found in deciduous woodlands on clay or chalky soils, or nearby parklands, sometimes in the form of fairy rings. Solid in shape, they resemble members of the genus Tricholoma. The ivory to light grey-brown cap is up to 20 cm (7.9 in) across with a margin that is rolled inward. The sinuate gills are pale and often yellowish, becoming pink as the spores develop. The thick whitish stem has no ring.
When young, it may be mistaken for the edible St George's mushroom (Calocybe gambosa) or the miller (Clitopilus prunulus). It has been responsible for many cases of mushroom poisoning in Europe. E. sinuatum causes primarily gastrointestinal problems that, though not generally life-threatening, have been described as highly unpleasant. Delirium and depression are uncommon sequelae. It is generally not considered to be lethal, although one source has reported deaths from the consumption of this mushroom.
The saga of this species' name begins in 1788 with the publication of part 8 of Jean Baptiste Bulliard's Herbier de la France. In it was plate 382, representing a mushroom which he called Agaricus lividus. In 1872, Lucien Quélet took up a species which he called "Entoloma lividus Bull."; although all subsequent agree that this is a fairly clear reference to Bulliard's name, Quélet gave a description that is generally considered to be that of a different species from Bulliard's. In the meantime, 1801 had seen the description of Agaricus sinuatus by Christian Persoon in his Synopsis Methodica Fungorum. He based that name on another plate (number 579) published in the last part of Bulliard's work, and which the latter had labelled "agaric sinué". German mycologist Paul Kummer reclassified it as Entoloma sinuatum in 1871.
For many years Quélet's name and description were treated as valid because Bulliard's name antedated Persoon's. However, in 1950, a change in the International Code of Botanical Nomenclature (termed the Stockholm Code, after the city where the International Botanical Congress was being held) caused only names on fungi published after 1801 or 1821 (depending on their type) to be valid. This meant that suddenly Bulliard's name was no longer a valid name, and now it was Persoon's name that had priority. Nonetheless, it was a well-known name, and the already chaotic situation caused by a change to a famous Latin name was further complicated by another of Quélet's suggestions. He had in 1886 proposed a new, broader genus that included all pink-gilled fungi with adnate or sinuate gills and angular spores: Rhodophyllus. These two approach to genus placement, using either Rhodophyllus or Entoloma, coexisted for many decades, with mycologists and guidebooks following either; Henri Romagnesi, who studied the genus for over forty years, favoured Rhodophyllus, as initially did Rolf Singer. However, most other authorities have tended to favor Entoloma, and Singer conceded the name was far more widely used and adopted it for his Agaricales in Modern Taxonomy text in 1986.
In the meantime, it had been widely accepted that the 1950 change to the Stockholm Code caused more problems than they solved, and in 1981, the Sydney Code reinstated the validity of pre-1801 names, but created the status of sanctioned name for those used in the foundational works of Persoon and Elias Magnus Fries. Thus Entoloma sinuatum, which Fries had sanctioned, still had to be used for the species described by Quélet even though Bulliard's name was the older one. At about the same time, Machiel Noordeloos re-examined Bulliard's name in more details, and discovered that not only was it illegitimate (and thus not available for use) because William Hudson had already used it ten years earlier for a different species, but Bulliard's illustration was clearly not an Entoloma, but a species of Pluteus, a genus that is only distantly related to Entoloma. As this made Quélet's name definitely unusable for the Entoloma, and because at the time he and Romagnesi believed there were ground to treat Quélet's "E. lividum" and Persoon's E. sinuatum as separate species, he had to coin a third name for Quélet's species: Entoloma eulividum. He however later changed his mind on this issue, combining again his own Entoloma eulividum and E. sinuatum, so that Persoon's name is now universally recognised. Because it was previously widely used and Quélet had provided a good description and illustration (which, the proposer argued, was better considered as a new species rather than a mere placement of Bulliard's name in another genus), a proposal was made in 1999 to conserve Entoloma lividum and thus restore its use. However, it failed because E. sinuatum had already been in use (if not universally) for many years and was thus a well-known name for the species.
The specific epithet sinuatum is the Latin for "wavy", referring to the shape of the cap, while the generic name is derived from the Ancient Greek words entos/ἐντός "inner" and lóma/λῶμα "fringe" or "hem" from the inrolled margin. The specific epithet lividum was derived from the Latin word līvǐdus "lead-coloured". The various common names include livid entoloma, livid agaric, livid pinkgill, leaden entoloma, lead poisoner, and grey pinkgill. In the Dijon region of France it was known as le grand empoisonneur de la Côte-d'Or ("the great poisoner of Côte d'Or"). Quélet himself, who was poisoned by the fungus, called it the miller's purge, akin to another common name of false miller.
Within the large genus Entoloma, which contains more than 1900 species, E. sinuatum has been classically placed in the section Entoloma within the subgenus Entoloma, as it is the type species of the genus. A 2009 study analyzing DNA sequences and spore morphology found it to lie in a rhodopolioid clade with (among other species) E. sordidulum, E. politum and E. rhodopolium, and most closely related to E. sp. 1. This rhodopolioid clade lay within a crown Entoloma clade.
The largest member of its genus, Entoloma sinuatum has an imposing epigeous (aboveground) fruiting body (basidiocarp), bearing a cap 6–20 cm (2+1⁄2–6 in) wide, though diameters of 30 cm (12 in) have been recorded. It is convex to flat, often with a blunt umbo in its centre and wavy margins, ivory white to light grey-brown in color, and darkening with age. The distant gills are sinuate (notched at their point of attachment to the stipe) to almost free, generally (but not always) yellowish white before darkening to pink and then red. Interspersed between the gills are lamellulae (short gills that do not extend completely from the cap margin to the stipe). When viewed from beneath, a characteristic groove colloquially known as a "moat" can be seen in the gill pattern circumnavigating the stalk. The form lacking yellow color on the gills is rare but widespread, and has been recorded from Austria, France and the Netherlands.
Hub AI
Entoloma sinuatum AI simulator
(@Entoloma sinuatum_simulator)
Entoloma sinuatum
Entoloma sinuatum (commonly known as the livid entoloma, livid agaric, livid pinkgill, leaden entoloma, and lead poisoner) is a poisonous mushroom found across Europe and North America. Some guidebooks refer to it by its older scientific names of Entoloma lividum or Rhodophyllus sinuatus. The largest mushroom of the genus of pink-spored fungi known as Entoloma, it is also the type species. Appearing in late summer and autumn, fruit bodies are found in deciduous woodlands on clay or chalky soils, or nearby parklands, sometimes in the form of fairy rings. Solid in shape, they resemble members of the genus Tricholoma. The ivory to light grey-brown cap is up to 20 cm (7.9 in) across with a margin that is rolled inward. The sinuate gills are pale and often yellowish, becoming pink as the spores develop. The thick whitish stem has no ring.
When young, it may be mistaken for the edible St George's mushroom (Calocybe gambosa) or the miller (Clitopilus prunulus). It has been responsible for many cases of mushroom poisoning in Europe. E. sinuatum causes primarily gastrointestinal problems that, though not generally life-threatening, have been described as highly unpleasant. Delirium and depression are uncommon sequelae. It is generally not considered to be lethal, although one source has reported deaths from the consumption of this mushroom.
The saga of this species' name begins in 1788 with the publication of part 8 of Jean Baptiste Bulliard's Herbier de la France. In it was plate 382, representing a mushroom which he called Agaricus lividus. In 1872, Lucien Quélet took up a species which he called "Entoloma lividus Bull."; although all subsequent agree that this is a fairly clear reference to Bulliard's name, Quélet gave a description that is generally considered to be that of a different species from Bulliard's. In the meantime, 1801 had seen the description of Agaricus sinuatus by Christian Persoon in his Synopsis Methodica Fungorum. He based that name on another plate (number 579) published in the last part of Bulliard's work, and which the latter had labelled "agaric sinué". German mycologist Paul Kummer reclassified it as Entoloma sinuatum in 1871.
For many years Quélet's name and description were treated as valid because Bulliard's name antedated Persoon's. However, in 1950, a change in the International Code of Botanical Nomenclature (termed the Stockholm Code, after the city where the International Botanical Congress was being held) caused only names on fungi published after 1801 or 1821 (depending on their type) to be valid. This meant that suddenly Bulliard's name was no longer a valid name, and now it was Persoon's name that had priority. Nonetheless, it was a well-known name, and the already chaotic situation caused by a change to a famous Latin name was further complicated by another of Quélet's suggestions. He had in 1886 proposed a new, broader genus that included all pink-gilled fungi with adnate or sinuate gills and angular spores: Rhodophyllus. These two approach to genus placement, using either Rhodophyllus or Entoloma, coexisted for many decades, with mycologists and guidebooks following either; Henri Romagnesi, who studied the genus for over forty years, favoured Rhodophyllus, as initially did Rolf Singer. However, most other authorities have tended to favor Entoloma, and Singer conceded the name was far more widely used and adopted it for his Agaricales in Modern Taxonomy text in 1986.
In the meantime, it had been widely accepted that the 1950 change to the Stockholm Code caused more problems than they solved, and in 1981, the Sydney Code reinstated the validity of pre-1801 names, but created the status of sanctioned name for those used in the foundational works of Persoon and Elias Magnus Fries. Thus Entoloma sinuatum, which Fries had sanctioned, still had to be used for the species described by Quélet even though Bulliard's name was the older one. At about the same time, Machiel Noordeloos re-examined Bulliard's name in more details, and discovered that not only was it illegitimate (and thus not available for use) because William Hudson had already used it ten years earlier for a different species, but Bulliard's illustration was clearly not an Entoloma, but a species of Pluteus, a genus that is only distantly related to Entoloma. As this made Quélet's name definitely unusable for the Entoloma, and because at the time he and Romagnesi believed there were ground to treat Quélet's "E. lividum" and Persoon's E. sinuatum as separate species, he had to coin a third name for Quélet's species: Entoloma eulividum. He however later changed his mind on this issue, combining again his own Entoloma eulividum and E. sinuatum, so that Persoon's name is now universally recognised. Because it was previously widely used and Quélet had provided a good description and illustration (which, the proposer argued, was better considered as a new species rather than a mere placement of Bulliard's name in another genus), a proposal was made in 1999 to conserve Entoloma lividum and thus restore its use. However, it failed because E. sinuatum had already been in use (if not universally) for many years and was thus a well-known name for the species.
The specific epithet sinuatum is the Latin for "wavy", referring to the shape of the cap, while the generic name is derived from the Ancient Greek words entos/ἐντός "inner" and lóma/λῶμα "fringe" or "hem" from the inrolled margin. The specific epithet lividum was derived from the Latin word līvǐdus "lead-coloured". The various common names include livid entoloma, livid agaric, livid pinkgill, leaden entoloma, lead poisoner, and grey pinkgill. In the Dijon region of France it was known as le grand empoisonneur de la Côte-d'Or ("the great poisoner of Côte d'Or"). Quélet himself, who was poisoned by the fungus, called it the miller's purge, akin to another common name of false miller.
Within the large genus Entoloma, which contains more than 1900 species, E. sinuatum has been classically placed in the section Entoloma within the subgenus Entoloma, as it is the type species of the genus. A 2009 study analyzing DNA sequences and spore morphology found it to lie in a rhodopolioid clade with (among other species) E. sordidulum, E. politum and E. rhodopolium, and most closely related to E. sp. 1. This rhodopolioid clade lay within a crown Entoloma clade.
The largest member of its genus, Entoloma sinuatum has an imposing epigeous (aboveground) fruiting body (basidiocarp), bearing a cap 6–20 cm (2+1⁄2–6 in) wide, though diameters of 30 cm (12 in) have been recorded. It is convex to flat, often with a blunt umbo in its centre and wavy margins, ivory white to light grey-brown in color, and darkening with age. The distant gills are sinuate (notched at their point of attachment to the stipe) to almost free, generally (but not always) yellowish white before darkening to pink and then red. Interspersed between the gills are lamellulae (short gills that do not extend completely from the cap margin to the stipe). When viewed from beneath, a characteristic groove colloquially known as a "moat" can be seen in the gill pattern circumnavigating the stalk. The form lacking yellow color on the gills is rare but widespread, and has been recorded from Austria, France and the Netherlands.
Recent media