Lepiota
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| Lepiota | ||||||||||||||
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| Image:Lepiota brunneoincarnata 060823w.jpg | ||||||||||||||
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Secure
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| Scientific classification | ||||||||||||||
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Lepiota is a genus of gilled mushrooms, in the order Agaricales. Though they have white spores, they are related to the familiar brown spored mushrooms of the genus Agaricus. They typically have rings on the stems, which in larger species are detachable and glide up and down the stem. The cap usually has scales: the colours of the cap, gills and scales are important in determining the exact species, as is sometimes the smell.
The term is likely derived from the Greek λεπις, "scale". The basionym is Agaricus sect. Lepiota Pers. 1797, devalidated by later starting date, so the citation is (Pers.) per S.F.Gray. It was only described, without species, and covered an earlier mentioned, but unnamed group of ringed, non-volvate species, regardless of spore color. Fries restricted the genus to white-spored species, and made into a tribe, which was, like Amanita repeatedly raised to genus rank.[1]
The type is unclear. L. procera is considered the type (by Earle, 1909). Agaricus columbrinus (L. clypeolaria) was also suggested (by Singer, 1946) to avoid the many combination involved otherwise in splitting Macrolepiota, which include L. procera. Since both species had been placed into different genera prior to their selection (in Leucocoprinus and Mastocephalus respectively), Donk observes that a conservation will probably be needed, expressing support for Singer's emendation.[1]
With respect to mushrooming, this is a genus to be avoided as several species contain amanitins and are highly toxic.[1] Those known to have caused death (or would have caused death except for intensive medical therapy) include L. josserandi in upstate New York in 1986, [1], L. brunneo-incarnata in Spain,[1] and L. helveola.[1][1]
Previously, the most familiar species were the larger species, such as the parasol mushroom and the shaggy parasol. However, these have now been placed in the different genera Macrolepiota and Chlorophyllum. However the status of the genera is not unanimous as some current books still leave the members of Macrolepiota in Lepiota.[1]
List of Lepiota species
- Lepiota aspera - freckled dapperling
Lepiota brunneo-incarnata - deadly dapperling
- Lepiota castanea - chestnut dapperling
- Image:Poisonous toxicity icon.png Lepiota clypeolaria - shield dapperling
- Image:Poisonous toxicity icon.png Lepiota cristata - star dapperling, stinking parasol (Europe, North America)
- Lepiota helveola
- Lepiota heteri
- Lepiota josserandi - deadly parasol (North America)
- Lepiota scobinella
- Lepiota subincarnata - fatal dapperling
References
bg:Сърнела de:Riesenschirmlinge fr:Lépiote it:Lepiota lt:Žvynabudėlė hu:Őzlábgomba no:Parasollsopp
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
