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Dermocybe
The fungi of the ''Dermocybe'' group, commonly known as skin-heads, form a group within the huge genus ''Cortinarius''. They are generally considered to be a subgenus though some authorities consider them to form a genus in their own right. They can be distinguished from other ''Cortinarius'' species by: #their brilliant colours, especially of the gills, #their non-hygrophanous dry cap, and #their dry cylindrical (non-bulbous) stem. An example with a vivid green colour is ''Dermocybe austroveneta''. Another example is ''D. semisanguinea'' (pictured), which from above is an ordinary brown colour, but which shows a striking blood-red sheen when the underside of the cap is viewed. Lethal webcaps one of world's most poisonous mushrooms belongs to the group. The Austrian Professor Meinhard Moser (1924-2002), whose book is referenced, was one of the authorities who promote ''Dermocybe'' to the status of a genus. References *Meinhard Moser: ''Basidiomycetes II: Röhrlinge und Bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermocybe Austroveneta
''Cortinarius austrovenetus'', alternately known as ''Dermocybe austroveneta'' and commonly known as the green skin-head but also known as green dermocybe is an inedible brightly coloured green Agaricales, gilled fungus that naturally occurs in south eastern Australia. Taxonomy Initially species description, described as ''Cortinarius austrovenetus'' by Australian naturalist John Burton Cleland in 1928, this mushroom along with many other members of the group was separated from the huge genus ''Cortinarius'', and placed in the newer genus ''Dermocybe'', commonly called skin-heads, derived from the meaning of their scientific names. However, this genus is often treated as a subgenus of ''Cortinarius'' only. In 2007, Bruno Gasparini suggested that ''C. austrovenetus'' is the same species as another ''Cortinarius'' in subgenus ''Dermocybe'', ''Cortinarius walkerae, C. walkerae''. If this is true, ''C. austrovenetus'' is a later synonym (taxonomy), synonym and the nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethal Webcaps
The Orellani are a group of seven related species in the genus '' Cortinarius'' that have been classified as a section of the subgenus ''Leprocybe'' or a subgenus in their own right. They are among world's most poisonous mushrooms as they contain the highly toxic compound orellanine. The best-known species are the deadly webcap (''Cortinarius rubellus'', formerly also known as ''C. speciosissimus'' or ''C. orellanoides'') and the fool's webcap, '' C. orellanus''. The mushrooms' characteristics are quite common, making them difficult to identify, which often leads to fatal poisonings. Young examples of the species often have a veil between the cap of the mushroom and the stem. This veil looks like a cobweb, hence the name. The veil however partially or completely disappears in older specimens. Some other characteristics for each of the mushrooms are given below. Descriptions Deadly webcap ''(Cortinarius rubellus)'' ''Spore color'': Rusty brown to orange ''Cap'': 3–7 cm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cortinarius
''Cortinarius'' is a globally distributed genus of mushrooms in the family Cortinariaceae. It is suspected to be the largest genus of agarics, containing over 2,000 widespread species. A common feature among all species in the genus ''Cortinarius'' is that young specimens have a cortina (veil) between the cap and the stem, hence the name, meaning ''curtained''. Most of the fibres of the cortina are ephemeral and will leave no trace once gone, except for limited remnants on the stem or cap edge in some species. All have a rusty brown spore print. The common names cortinar and webcap refer to members of the genus. Due to dangerous toxicity of several species (such as ''Cortinarius orellanus'') and the fact that it is difficult to distinguish between various species of the genus, non-expert consumption of mushrooms from the genus is discouraged. Distinguishing features The veil protects the gills in younger specimens and usually disappears leaving little to no trace of itself as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meinhard Moser
Meinhard Michael Moser (13 March 192430 September 2002) was an Austrian mycologist. His work principally concerned the taxonomy, chemistry, and toxicity of the gilled mushrooms (Agaricales), especially those of the genus ''Cortinarius'', and the ecology of ectomycorrhizal relationships. His contributions to the Kleine Kryptogamenflora von Mitteleuropa series of mycological guidebooks were well regarded and widely used. In particular, his 1953 ''Blätter- und Bauchpilze (Agaricales und Gastromycetes)'' 'The Gilled and Gasteroid Fungi (Agaricales and Gastromycetes)'' which became known as simply "Moser", saw several editions in both the original German and in translation. Other important works included a 1960 monograph on the genus ''Phlegmacium'' (now considered part of ''Cortinarius'') and a 1975 study of members of ''Cortinarius'', ''Dermocybe'', and ''Stephanopus'' in South America, co-authored with the mycologist Egon Horak. After showing interest in natural sciences in his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungus
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basidiomycota
Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basidiomycota includes these groups: mushrooms, puffballs, stinkhorns, bracket fungi, other polypores, jelly fungi, boletes, chanterelles, earth stars, smuts, bunts, rusts, mirror yeasts, and ''Cryptococcus'', the human pathogenic yeast. Basidiomycota are filamentous fungi composed of hyphae (except for basidiomycota-yeast) and reproduce sexually via the formation of specialized club-shaped end cells called basidia that normally bear external meiospores (usually four). These specialized spores are called basidiospores. However, some Basidiomycota are obligate asexual reproducers. Basidiomycota that reproduce asexually (discussed below) can typically be recognized as members of this division by gross similarity to others, by the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricomycetes
The Agaricomycetes are a class of fungi in the division Basidiomycota. The taxon is roughly identical to that defined for the Homobasidiomycetes (alternatively called holobasidiomycetes) by Hibbett & Thorn, with the inclusion of Auriculariales and Sebacinales. It includes not only mushroom-forming fungi, but also most species placed in the deprecated taxa Gasteromycetes and Homobasidiomycetes. Within the subdivision Agaricomycotina, which already excludes the smut and rust fungi, the Agaricomycetes can be further defined by the exclusion of the classes Tremellomycetes and Dacrymycetes, which are generally considered to be jelly fungi. However, a few former "jelly fungi", such as ''Auricularia'', are classified in the Agaricomycetes. According to a 2008 estimate, Agaricomycetes include 17 orders, 100 families, 1147 genera, and about 21000 species. Modern molecular phylogenetic analyses have been since used to help define several new orders in the Agaricomycetes: Amylocorticiales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricales
The fungal order Agaricales, also known as gilled mushrooms (for their distinctive gills) or euagarics, contains some of the most familiar types of mushrooms. The order has 33 extant families, 413 genera, and over 13,000 described species, along with six extinct genera known only from the fossil record. They range from the ubiquitous common mushroom to the deadly destroying angel and the hallucinogenic fly agaric to the bioluminescent jack-o-lantern mushroom. History, classification and phylogeny In his three volumes of '' Systema Mycologicum'' published between 1821 and 1832, Elias Fries put almost all of the fleshy, gill-forming mushrooms in the genus ''Agaricus''. He organized the large genus into "tribes", the names of many of which still exist as common genera of today. Fries later elevated several of these tribes to generic level, but later authors—including Gillet, Karsten, Kummer, Quélet, and Staude—made most of the changes. Fries based his classification on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cortinariaceae
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. The deadly toxin orellanine has been found in at least 34 Cortinariaceae. Taxonomic details Cortinariaceae is a family of mushrooms within the Order Agaricales. The spore producing hymenium is located on the gills. The pileipellis is a cutis. The spores are brown in deposit and, in most genera in this family, the spores are ornamented. Differences in genera ''Cortinarius'' are mushrooms with warted spores, which are rusty-brown in deposit. Mushrooms in this genus have a partial veil which is a cortina. These mushrooms are terrestrial and mycorrhizal, and can range from small to large and fleshy. Edibility Despite the vast number of sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostylis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrophanous
The adjective hygrophanous refers to the color change of mushroom tissue (especially the pileus surface) as it loses or absorbs water, which causes the pileipellis to become more transparent when wet and opaque when dry. When identifying hygrophanous species, one needs to be careful when matching colors to photographs or descriptions, as color can change dramatically soon after picking. Genera that are characterized by hygrophanous species include ''Agrocybe'', ''Psathyrella'', ''Psilocybe'', ''Panaeolus'', and ''Galerina''. External links IMA Mycological Glossary: HygrophanousWisconsin Mycological Society: ''Psathyrella''Photographs of ''Psathyrella'', a mushroom with a strongly hygrophanous pileus. Image:Hygro psaths.jpg, Grouping of ''Psathyrella gracilis'', some displaying hygrophanous pilei. Image:Hygro foe 3.jpg, Photo of the hygrophanous pileus of ''Panaeolina foenisecii ''Panaeolus foenisecii'', commonly called the mower's mushroom, haymaker or brown hay mushroom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
