Echinoderma asperum

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Echinoderma asperum
Lep.asp.jpg
Scientific classification
Kingdom:
Division:
Class:
Order:
Family:
Genus:
Species:
E. asperum
Binomial name
Echinoderma asperum
(Pers.) Bon (1991)
Synonyms

Lepiota aspera (Pers.) Quel. (1886)
Lepiota friesii (Lasch.) Quel. (1872)
Lepiota acutesquamosa (Weinm.) P. Kumm. (1871)
Lepiota acutesquamosa var. furcata Kühner (1936)
Cystolepiota aspera (Pers.) Bon (1978)

Contents

Echinoderma asperum
Information icon.svg
Gills icon.png Gills on hymenium
Ovate cap icon.svgCampanulate cap icon.svg Cap is ovate or campanulate
Free gills icon2.svg Hymenium is free
Ring stipe icon.svg Stipe has a ring
Transparent spore print icon.svg
Spore print is white
Mycorrhizal fungus.svgEcology is mycorrhizal
Mycomorphbox Caution.pngEdibility is not recommended

Echinoderma asperum or Lepiota aspera, sometimes known commonly as the freckled dapperling, is a large, brownish, white-gilled mushroom, with a warty or scaly cap. It lives in woodland, or on bark chips in parks, and gardens.

Taxonomy and naming

First described by the eminent nineteenth century mycologist Persoon as Agaricus asper, the freckled dapperling has been through several taxonomical name changes. Lucien Quélet moved it to genus Lepiota and since then it has long been known as Lepiota aspera (Pers.) Quel. [1] [2] For a time it was placed with the other "spiny" Lepiota species into a separate sub-genus called Echinoderma, and in 1978 Marcel Bon put it into Cystolepiota . [3] Then in 1991 Bon created the new genus Echinoderma for this and similar brownish warty species, and the new name Echinoderma asperum is almost universally accepted in more recent publications. [4] [5] [6] [7] [8] [9] [10]

The species name is the Latin adjective "asper" (with feminine: "aspera" and neuter "asperum"), meaning "rough". [11]

This same species was described by Weinmann in 1824 as Agaricus acutesquamosus and by Wilhelm Gottfried Lasch in 1828 as Agaricus friesii, giving rise to corresponding synonyms in genera Lepiota and Echinoderma. Although most authorities now consider all these names to be synonyms, Moser separated the acutesquamosum form from the asperum form as different species, on the basis that the latter has forking gills and the former not. [2]

Description

General

The cap is oval at first, becoming convex (or campanulate) with age. It is uniform reddish/brown or brown at the centre, breaking up into erect pyramidal scales on a paler ground, and up to 10 cm in diameter. The stem is paler, around 10 cm in length, and has sparse brown scales below the ring. The ring itself is large and cottony, sometimes adhering to the cap perimeter, and often taking brownish scales from there; these are seen at its edge. The gills have a tendency to fork and are free, crowded, and white, with the spore print being white also. The flesh is white, and is said to smell of rubber, earth balls ( Scleroderma citrinum ), [3] or the mushroom Lepiota cristata . [7]

Similar species

The brownish scales on the cap and the lower part of the stem and the white gills make the genus Echinoderma quite distinctive, but E. asperum could be confused with other members, such as E. calcicola (which has warts the same colour as the background and non-forking gills which are less crowded) and the rare E. hystrix (which is darker and has dark gill-edges). [6]

Distribution and habitat

Echinoderma asperum appears during autumn in deciduous woodland, or in parks and gardens where wood chip mulch has been used. It has been recorded widely in northern temperate zones - varying between common and quite rare in Europe and North Africa, [4] it occurs in North America, and it has been reported in Japan, Australia and New Zealand. In a study to show the diversity of Lepiota aspera species in northern Thailand it was shown how in the Chiang Mai and Chiang Rai provinces in the years 2007 to 2010, about 73 Lepiota mushrooms were collected that represented thirty three different species. The distribution of these L. aspera species resulted in 11 of Stenosporae, 8 of Ovisporae, 6 of Lepiota, 5 of Liliaceae, and 3 of Echinacea. Resulting in how the highest diversity of L. aspera species were reported to be the Stenosporae, resulting in the diversity index to result in 2.20. [8]

Edibility

Although sometimes listed as edible, this mushroom has been shown to cause alcohol intolerance and may be poisonous. [12] It also resembles some species of the Amanita genus, which includes some deadly species. [13]

Related Research Articles

<i>Lepiota</i> Genus of fungi

Lepiota is a genus of gilled mushrooms in the family Agaricaceae. All Lepiota species are ground-dwelling saprotrophs with a preference for rich, calcareous soils. Basidiocarps are agaricoid with whitish spores, typically with scaly caps and a ring on the stipe. Around 400 species of Lepiota are currently recognized worldwide. Many species are poisonous, some lethally so.

<i>Echinoderma</i> Genus of fungi

Echinoderma is a genus of fungi in the family Agaricaceae. Its members were for a long time considered to belong to genus Lepiota and the group was then circumscribed by French mycologist Marcel Bon in 1981 as a subgenus of Cystolepiota before he raised it to generic status in 1991.

<i>Agaricus impudicus</i> Species of fungus

Agaricus impudicus, also known as the tufted wood mushroom, is a mushroom of Agaricus, a genus with many edible species.

<i>Leucocoprinus birnbaumii</i> Species of fungus

Leucocoprinus birnbaumii, commonly known as the flower pot parasol, yellow parasol, flowerpot parasol, or plantpot dapperling, is a species of gilled mushroom in the family Agaricaceae. It is common in the tropics and subtropics. However, in temperate regions, it frequently occurs in greenhouses and flowerpots, hence its common names of flowerpot parasol and plantpot dapperling. It is considered to be toxic if consumed.

<i>Lepiota brunneoincarnata</i> Species of fungus

Lepiota brunneoincarnata, the deadly dapperling, is a gilled mushroom of the genus Lepiota in the order Agaricales. Widely distributed in Europe and temperate regions of Asia as far east as China, it grows in grassy areas such as fields, parks and gardens, and is often mistaken for edible mushrooms. The mushroom has a brown scaled cap up to 4 cm wide with a pinkish brown stem and white gills. It is highly toxic, with several deaths having been recorded as it resembles the edible grey knight and fairy ring champignon.

<i>Russula claroflava</i> Species of fungus

Russula claroflava, commonly known as the yellow russula, yellow swamp russula or yellow swamp brittlegill, is a basidiomycete mushroom of the genus Russula. It is found in wet places under birch and aspen woodlands across Europe and North America. It has a yellow cap, white gills and stipe and bruises grey. It is mild-tasting and regarded as good to eat.

<i>Russula adusta</i> Species of fungus

Russula adusta, commonly known as the blackening brittlegill or blackening russula, is a species of gilled mushroom. It is found in woodlands of Europe and North America. Russula adusta is a member of the Russula subgenus Compactae. The cap is brown to gray and somewhat shiny, with a mild taste and, reportedly, an odor of empty wine barrels. It has a propensity to turn black from cutting or bruising and has white spores. It can be found growing with conifers. Similar species include Russula albonigra and R. densifolia.

<i>Amanita echinocephala</i> Species of fungus

Amanita echinocephala is a large, whitish or ivory-coloured mushroom with a characteristic spiny, or warty-looking cap. A. solitaria is a synonym and opinions are divided as to which name takes precedence. It lives on chalky soils with beech trees, and appears earlier than most mushrooms of similar size in southern England. It frequently occurs singly or in small groups, resulting in it being referred to as the solitary amanita or, more specifically, European solitary lepidella. It is very drought-tolerant.

<i>Hygrocybe miniata</i> Species of fungus

Hygrocybe miniata, commonly known as the vermilion waxcap or miniature waxy cap, is a small, bright red or red-orange mushroom of the waxcap genus Hygrocybe. It is a cosmopolitan species, that is found worldwide. In Europe, it is found in fields, on sandy heaths, or grassy commons in the autumn. It is found in rainforest and eucalypt forest as well as heathland in Australia.

<i>Cystoderma amianthinum</i> Species of fungus

Cystoderma amianthinum, commonly called the saffron parasol, the saffron powder-cap, or the earthy powder-cap, is a small orange-ochre, or yellowish-brown, gilled mushroom. It grows in damp mossy grassland, in coniferous forest clearings, or on wooded heaths. It is probably the most common of the small genus Cystoderma. It is not recommended for consumption due to its resemblance to poisonous species.

<i>Tricholoma terreum</i> Species of fungus

Tricholoma terreum, commonly known as the grey knight or dirty tricholoma, is a grey-capped mushroom of the large genus Tricholoma. It is found in coniferous woodlands in Europe, and has also been encountered under introduced pine trees in Australia and New Zealand. It is regarded as edible. A 2014 article speculated that it may be poisonous, but Sitta et al. in 2016 published in the same journal a counter article demonstrating the unfounded nature of such speculation.

<i>Russula heterophylla</i> Species of fungus

The edible wild mushroom Russula heterophylla, that has lately been given the common name of the greasy green brittlegill is placed in the genus Russula, the members of which are mostly known as brittlegills. It is a variably colored mushroom, found in deciduous forests, and woods in Britain, Europe, and Scandinavia. Appearing with broad-leaved trees in summer to early autumn, it usually has a greenish coloration.

<i>Lepiota castanea</i> Species of fungus

Lepiota castanea, commonly known as the chestnut dapperling or petite parasol, is a deadly poisonous, uncommon, gilled mushroom of the genus Lepiota in the order Agaricales. It is known to contain amatoxins and consuming this fungus can be a potentially lethal proposition. It was described by French mycologist Lucien Quélet in 1881.

<i>Lepiota clypeolaria</i> Species of fungus

Lepiota clypeolaria, commonly known as the shield dapperling or the shaggy-stalked Lepiota, is a common mushroom in the genus Lepiota. It is widely distributed in northern temperate zones, where it grows in deciduous and coniferous forest. Fruit bodies have a brownish cap, a shaggy stipe with a collapsed, sheathing ring or ring zone, and spindle-shaped spores.

<i>Ripartites tricholoma</i> Species of fungus

Ripartites tricholoma, commonly known as the bearded seamine, is a species of fungus in the family Tricholomataceae. It was first described scientifically as Agaricus tricholoma by Albertini and Lewis David von Schweinitz in 1805, and later transferred into the genus Ripartites by Petter Karsten in 1879. It is found in North America and Europe, and has also been collected in Costa Rica.

<i>Lepiota subincarnata</i> Species of fungus

Lepiota subincarnata, commonly known as the fatal dapperling and deadly parasol, is a gilled mushroom of the genus Lepiota in the order Agaricales. It is known to contain amatoxins and consuming this fungus can be potentially lethal. The species is found in Asia, Europe, and North America, in woods as well as richly soiled parks. It was first described scientifically by the Danish mycologist Jakob Emanuel Lange in 1940. Bon and Boiffard described Lepiota josserandii in 1974, which turned out to be the same species.

<i>Lepiota cristata</i> Species of fungus

Lepiota cristata, commonly known as the stinking dapperling, brown-eyed parasol, or the stinking parasol, is an agaric and possibly poisonous mushroom in the family Agaricaceae. A common and widespread species—one of the most widespread fungi in the genus Lepiota—it has been reported from Europe, northern Asia, North America, and New Zealand. It fruits on the ground in disturbed areas, such as lawns, path and road edges, parks, and gardens. The species produces fruit bodies characterized by the flat, reddish-brown concentric scales on the caps, and an unpleasant odour resembling burnt rubber. Similar Lepiota species can sometimes be distinguished from L. cristata by differences in cap colour, stipe structure, or odour, although some species can only be reliably distinguished through the use of microscopy.

<i>Leucocoprinus cretaceus</i> Species of fungus

Leucocoprinus cretaceus is a species of mushroom producing fungus in the family Agaricaceae. It is likely tropical in origin although it was first documented in Europe where it was often found growing in greenhouses and bark beds. However many early observations conflate this species with Leucocoprinus birnbaumii or Leucocoprinus cepistipes despite sharing only some superficial similarities. This fungus is quite versatile even for a saprotroph and is often found growing in clusters on woodchips, sawdust and compost heaps as well as directly from the ground or on trees. It may also appear in plant pots and greenhouses in colder countries in which it is not well equipped to survive outside.

Leucocoprinus holospilotus is a species of mushroom producing fungus in the family Agaricaceae.

References

  1. Roger Phillips (2006). Mushrooms. Pan MacMillan. ISBN   978-0-330-44237-4. Or alternatively Roger Phillips (2006). Mushrooms. Pan MacMillan. ISBN   978-0-330-44237-4.
  2. 1 2 See Meinhard Moser (1983). Keys to Agarics and Boleti. Translated by Simon Plant. London: Roger Phillips. p. 242. ISBN   978-0-9508486-0-0.
  3. 1 2 Marcel Bon (1987). The Mushrooms and Toadstools of Britain and North Western Europe. Hodder and Stoughton. p. 282. ISBN   978-0-340-39935-4.
  4. 1 2 Regis Courtecuisse and Bernard Duhem (1995). Mushrooms and Toadstools of Britain and Europe. Harper Collins. ISBN   978-0-00-220025-7.
  5. "Echinoderma asperum page". Encyclopedia of Life. Encyclopedia of Life. Retrieved 2017-05-23. But the EOL also treats Lepiota aspera as if it were a separate species.
  6. 1 2 Eyssartier, G.; Roux, P. (2013). Le guide des champignons France et Europe (in French). Belin. p. 340. ISBN   978-2-7011-8289-6.
  7. 1 2 Knudsen, H.; Vesterholt, J., eds. (2008). Funga Nordica Agaricoid, boletoid and cyphelloid genera. Copenhagen: Nordsvamp. p. 536. ISBN   978-87-983961-3-0. This work wrongly gives the species name as "aspera".
  8. 1 2 See the Global Biodiversity Information Facility page, which gives the current name and shows the geographical distribution.
  9. "Lepiota aspera page". National Biodiversity Network. National Biodiversity Network. Retrieved 2017-05-23. This page states that the accepted name for Lepiota aspera is Echinoderma asperum.
  10. "Echinoderma asperum page". Species Fungorum. Royal Botanic Gardens Kew. Retrieved 2017-05-23.
  11. "asper". Wiktionary. Wikimedia. Retrieved 2017-05-26.
  12. Haberl, B; Pfab, R; Berndt, S; Greifenhagen, C; Zilker, T (February 2011). "Case series: Alcohol intolerance with Coprine-like syndrome after consumption of the mushroom Lepiota aspera (Pers.:Fr.) Quél., 1886 (Freckled Dapperling)". Clin Toxicol. 49 (2): 113–4. doi:10.3109/15563650.2011.554840. PMID   21370948. S2CID   43434106.
  13. Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 55. ISBN   978-0-7627-3109-1.