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Agaricus Semotus
''Agaricus semotus'' is a woodland mushroom of the fungus order '' Agaricales''. It, like many of its relatives, can be found spread throughout wooded, moist areas in the southern United States, and has been found in areas ranging from California to Florida; it is also indigenous to Great Britain and Europe. ''A. semotus'' has also been collected in New Zealand. Although various authors disagree about its edibility, its modest size prevents it from being a significant source of nutrition. Description The cap is 2–7 cm in diameter, initially convex while flattening with age; it typically has a low umbo–a raised, conical mound in the center of the cap. The surface color can range from a lighter cream to a darker tan, with brownish scales thinning out towards the margin of the cap. The gills are free from the stalk and packed closely together, showing a pink to salmon color in youth and aging to a darker brown. The stalk is 3–7 cm tall and 0.4–0. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elias Magnus Fries
Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist. Career Fries was born at Femsjö (Hylte Municipality), Småland, the son of the pastor there. He attended school in Växjö. He acquired an extensive knowledge of flowering plants from his father. In 1811 Fries entered Lund University where he obtained a doctorate in 1814. In the same year he was appointed an associate professorship in botany. He was elected a member of the Royal Swedish Academy of Sciences, and in 1824, became a full professor. In 1834 he became Borgström professor (Swed. ''Borgströmianska professuren'', a chair endowed by Erik Eriksson Borgström, 1708–1770) in applied economics at Uppsala University. The position was changed to "professor of botany and applied economics" in 1851. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1849. That year he was also appointed director of the Uppsala University Botanica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spore
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote which develops into a new s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus
''Agaricus'' is a genus of mushrooms containing both edible and poisonous species, with over 400 members worldwide and possibly again as many disputed or newly-discovered species. The genus includes the common ("button") mushroom (''Agaricus bisporus'') and the field mushroom ('' A. campestris''), the dominant cultivated mushrooms of the West. Members of ''Agaricus'' are characterized by having a fleshy cap or pileus, from the underside of which grow a number of radiating plates or gills, on which are produced the naked spores. They are distinguished from other members of their family, Agaricaceae, by their chocolate-brown spores. Members of ''Agaricus'' also have a stem or stipe, which elevates it above the object on which the mushroom grows, or substrate, and a partial veil, which protects the developing gills and later forms a ring or annulus on the stalk. The genus contains the most widely consumed and best-known mushroom today, '' A. bisporus'', with '' A. arvensis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Agaricus Species
''Agaricus'' is a genus of mushrooms containing both edible and poisonous species, with over 400 members worldwide and possibly again as many disputed or newly-discovered species. The genus includes the common ("button") mushroom (''Agaricus bisporus'') and the field mushroom ('' A. campestris''), the dominant cultivated mushrooms of the West. Members of ''Agaricus'' are characterized by having a fleshy cap or pileus, from the underside of which grow a number of radiating plates or gills, on which are produced the naked spores. They are distinguished from other members of their family, Agaricaceae, by their chocolate-brown spores. Members of ''Agaricus'' also have a stem or stipe, which elevates it above the object on which the mushroom grows, or substrate, and a partial veil, which protects the developing gills and later forms a ring or annulus on the stalk. The genus contains the most widely consumed and best-known mushroom today, '' A. bisporus'', with '' A. arvensis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycologia
''Mycologia'' is a peer-reviewed scientific journal that publishes papers on all aspects of the fungi, including lichens. It first appeared as a bimonthly journal in January 1909, published by the New York Botanical Garden under the editorship of William Murrill. It became the official journal of the Mycological Society of America The Mycological Society of America (MSA) is a learned society that serves as the professional organization of mycologists in the U.S. and Canada. It was founded in 1932. The Society's constitution states that "The purpose of the Society is to prom ..., which still publishes it today. It was formed as a merger of the ''Journal of Mycology'' (14 volumes; 1885–1908) and the ''Mycological Bulletin'' (7 volumes; 1903–1908). The ''Mycological Bulletin'' was known as the ''Ohio Mycological Bulletin'' in its first volume. Editors The following persons have been editor-in-chief of the journal: The following persons have been managing editor of the journal: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus Abruptibulbus
''Agaricus abruptibulbus'' is a species of mushroom in the genus ''Agaricus''. It is commonly known as the abruptly-bulbous agaricus or the flat-bulb mushroom. First described by the mycologist Charles Horton Peck, this bulbous-stemmed edible species smells slightly of anise, and turns yellow when bruised or cut. The mushroom is medium-sized, with a white, yellow-staining cap on a slender stipe that has a wide, flat bulb on the base Taxonomy and classification The species was originally named as ''Agaricus abruptus'' by American mycologist Charles Horton Peck in 1900. In his 1904 ''Report of the State Botanist'' publication, he changed the name to ''Agaricus abruptibulbus''. He explained that Elias Magnus Fries had earlier named a species in the subgenus ''Flammula'', which he called ''Agaricus abruptus''; the subgenus was later raised to the rank of genus, and the species was given the name ''Flammula abruptus''. Under the transitioning nomenclatural conventions of the time, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus Arvensis
''Agaricus arvensis'', commonly known as the horse mushroom, is a mushroom of the genus ''Agaricus''. Taxonomy It was species description, described as ''Agaricus arvensis'' by Jacob Christian Schaeffer in 1762, and given numerous binomial descriptions since. Its specific name arvensis means 'of the field'. Description The pileus (mycology), cap is , whitish, smooth, and dry; it stains yellow, particularly when young. The gills are pale pink to white at first, later passing through grey and brown to become dull chocolate. There is a large spreading ring, white above but sometimes with yellowish scales underneath. Viewed from below, on a closed-cap specimen, the twin-layered ring has a well-developed 'cogwheel' pattern around the stipe. This is the lower part of the double ring. The stalk is long and 1–3 cm wide. The spores are brown and smooth. The odor is described as like anise. It belongs to a group of ''Agaricus'' which tend to stain yellow on bruising. Similar sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus Silvicola
''Agaricus silvicola'', also known as the wood mushroom, is a species of Agaricus mushroom related to the button mushroom. Taxonomy Originally described as the variety ''Agaricus campestris'' var. ''silvicola'' by Carlo Vittadini in 1832, it was promoted to distinct species status by Charles Horton Peck in 1873. Varieties with larger bases have been described as '' A. abruptibulbus''. Description The cap is light cream, and bruises yellow ochre when damaged. It is in diameter, which makes it slightly smaller than its close relative ''Agaricus arvensis'', the "horse mushroom". The stem is , and usually has a bulbous base. It is much the same colour as the cap, and has a fragile drooping ring. The flesh is thin and white, and smells of aniseed. It looks fairly similar to a young death cap. The spores are brown, elliptical, and smooth. Distribution and habitat ''Agaricus silvicola'' grows in both deciduous and coniferous woodland in Britain, Europe, and North America. Appe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenium
The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia (basidiomycetes) or paraphyses (ascomycetes). Cystidia are often important for microscopic identification. The subhymenium consists of the supportive hyphae from which the cells of the hymenium grow, beneath which is the hymenophoral trama, the hyphae that make up the mass of the hymenophore. The position of the hymenium is traditionally the first characteristic used in the classification and identification of mushrooms. Below are some examples of the diverse types which exist among the macroscopic Basidiomycota and Ascomycota. * In agarics, the hymenium is on the vertical faces of the gills. * In boletes and polypores, it is in a spongy mass of downward-pointing tubes. * In puffballs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystidia
A cystidium (plural cystidia) is a relatively large cell found on the sporocarp of a basidiomycete (for example, on the surface of a mushroom gill), often between clusters of basidia. Since cystidia have highly varied and distinct shapes that are often unique to a particular species or genus, they are a useful micromorphological characteristic in the identification of basidiomycetes. In general, the adaptive significance of cystidia is not well understood. Classification of cystidia By position Cystidia may occur on the edge of a lamella (or analogous hymenophoral structure) (cheilocystidia), on the face of a lamella (pleurocystidia), on the surface of the cap (dermatocystidia or pileocystidia), on the margin of the cap (circumcystidia) or on the stipe (caulocystidia). Especially the pleurocystidia and cheilocystidia are important for identification within many genera. Sometimes the cheilocystidia give the gill edge a distinct colour which is visible to the naked eye or wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
