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Schulzeria
''Leucoagaricus'' is a genus of fungi in the family Agaricaceae. Several fungus-growing ants cultivate multiple species for food. The genus contains approximately 90 species. Taxonomy This group of mushrooms was first defined as a subgenus of '' Leucocoprinus'' by Marcel Locquin in 1945, and it was then elevated to the status of genus by Rolf Singer in the journal ''Sydowia'' in 1948. The group was characterized as belonging to family Agaricaceae with white, dirty cream or pink spores which are generally small (up to 10 µm) but much bigger in one species, with a germ pore, with a pseudo- amyloid multilayered membrane, simple or ornamented, which is metachromatic in cresyl blue. The hyphae in the sporocarp are without clamp connections. There is always a ring which is initially fixed (but later may be movable). The type species is ''Leucoagaricus barssii'' (Zeller) Vellinga, which was formerly called ''L. macrorhizus''. Species Select species include: *'' Leuco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephan Schulzer Von Müggenburg
Stephan Schulzer von Müggenburg (December 19, 1802 – February 5, 1892) was a Hungarian-Croatian army officer and mycologist. His first name is variably spelled Stefan, Stjepan or István. Schulzer von Müggenburg was born into abject poverty in a dilapidated castle at the periphery of the Austro-Hungarian Empire. His mother died in his early childhood. He was brought up by, and received a Spartan home-education from, his well educated but very strict father, a retired army officer of Saxonian descent, who died when Schulzer was fifteen. Schulzer spent the following three years in a military academy-like company of cadets in Olomouc (Olmütz). After enlisting he spent seven years as ''Cadet'' (officer in training) and the following six as ''Fähnrich'' (officer candidate). Having finally attained the rank of a second lieutenant he became a captain within the following ten years. In 1821 he participated in the Piedmont campaign. In fighting a fire he lost the use of both hands and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucoagaricus Nympharum1
''Leucoagaricus'' is a genus of fungi in the family Agaricaceae. Several fungus-growing ants cultivate multiple species for food. The genus contains approximately 90 species. Taxonomy This group of mushrooms was first defined as a subgenus of ''Leucocoprinus'' by Marcel Locquin in 1945, and it was then elevated to the status of genus by Rolf Singer in the journal ''Sydowia'' in 1948. The group was characterized as belonging to family Agaricaceae with white, dirty cream or pink spores which are generally small (up to 10 µm) but much bigger in one species, with a germ pore, with a pseudo-amyloid multilayered membrane, simple or ornamented, which is metachromatic in cresyl blue. The hyphae in the sporocarp are without clamp connections. There is always a ring which is initially fixed (but later may be movable). The type species is ''Leucoagaricus barssii'' (Zeller) Vellinga, which was formerly called ''L. macrorhizus''. Species Select species include: *''Leucoagaricus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucoagaricus Leucothites A1
''Leucoagaricus'' is a genus of fungi in the family Agaricaceae. Several fungus-growing ants cultivate multiple species for food. The genus contains approximately 90 species. Taxonomy This group of mushrooms was first defined as a subgenus of ''Leucocoprinus'' by Marcel Locquin in 1945, and it was then elevated to the status of genus by Rolf Singer in the journal ''Sydowia'' in 1948. The group was characterized as belonging to family Agaricaceae with white, dirty cream or pink spores which are generally small (up to 10 µm) but much bigger in one species, with a germ pore, with a pseudo-amyloid multilayered membrane, simple or ornamented, which is metachromatic in cresyl blue. The hyphae in the sporocarp are without clamp connections. There is always a ring which is initially fixed (but later may be movable). The type species is ''Leucoagaricus barssii'' (Zeller) Vellinga, which was formerly called ''L. macrorhizus''. Species Select species include: *''Leucoagaricus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clamp Connections
A clamp connection is a hook-like structure formed by growing hyphal cells of certain fungi. It is a characteristic feature of Basidiomycetes fungi. It is created to ensure that each cell, or segment of hypha separated by septa (cross walls), receives a set of differing nuclei, which are obtained through mating of hyphae of differing sexual types. It is used to maintain genetic variation within the hypha much like the mechanisms found in crozier (hook) during sexual reproduction. Formation Clamp connections are formed by the terminal hypha during elongation. Before the clamp connection is formed this terminal segment contains two nuclei. Once the terminal segment is long enough it begins to form the clamp connection. At the same time, each nucleus undergoes mitotic division to produce two daughter nuclei. As the clamp continues to develop it uptakes one of the daughter (green circle) nuclei and separates it from its sister nucleus. While this is occurring the remaining nuclei (o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metachromasia
Metachromasia (var. metachromasy) is a characteristical change in the color of staining carried out in biological tissues, exhibited by certain dyes when they bind to particular substances present in these tissues, called chromotropes. For example, toluidine blue becomes dark blue (with a colour range from blue-red dependent on glycosaminoglycan content) when bound to cartilage. Other widely used metachromatic stains are the haematological Giemsa and May-Grunwald stains that also contain thiazine dyes. The white cell nucleus stains purple, basophil granules intense magenta, whilst the cytoplasms (of mononuclear cells) stains blue. The absence of color change in staining is named orthochromasia. The underlying mechanism for metachromasia requires the presence of polyanions within the tissue. When these tissues are stained with a concentrated basic dye solution, such as toluidine blue, the bound dye molecules are close enough to form dimeric and polymeric aggregates. The light a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brilliant Cresyl Blue
Brilliant cresyl blue is a supravital stain used for counting reticulocytes. It is classified as an oxazine dye Oxazines are heterocyclic compounds containing one oxygen and one nitrogen atom in a doubly unsaturated six-membered ring. Isomers exist depending on the relative position of the heteroatoms and relative position of the double bonds. By extensi .... N95 dust masks, eye shields, and gloves must all be worn when handling the chemical. References {{heterocyclic-stub Chlorides Zinc compounds Oxazine dyes Phenoxazines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypha
A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or more cells surrounded by a tubular cell wall. In most fungi, hyphae are divided into cells by internal cross-walls called "septa" (singular septum). Septa are usually perforated by pores large enough for ribosomes, mitochondria, and sometimes nuclei to flow between cells. The major structural polymer in fungal cell walls is typically chitin, in contrast to plants and oomycetes that have cellulosic cell walls. Some fungi have aseptate hyphae, meaning their hyphae are not partitioned by septa. Hyphae have an average diameter of 4–6 µm. Growth Hyphae grow at their tips. During tip growth, cell walls are extended by the external assembly and polymerization of cell wall components, and the internal production of new cell membrane. The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporocarp (fungi)
The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cycle, while the rest of the life cycle is characterized by vegetative mycelial growth and asexual spore production. The sporocarp of a basidiomycete is known as a ''basidiocarp'' or ''basidiome'', while the fruitbody of an ascomycete is known as an '' ascocarp''. Many shapes and morphologies are found in both basidiocarps and ascocarps; these features play an important role in the identification and taxonomy of fungi. Fruitbodies are termed ''epigeous'' if they grow on the ground, while those that grow underground are ''hypogeous''. Epigeous sporocarps that are visible to the naked eye, especially fruitbodies of a more or less agaricoid morphology, are often called mushrooms. Epigeous sporocarps have mycelia that extend underground far ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucoagaricus Americanus
''Leucoagaricus americanus'' is a mushroom in the genus ''Leucoagaricus'', native to North America. It was first described by Charles Horton Peck, an American mycologist of the 19th and early 20th centuries, in 1869. It is widely distributed in North America, though more common east of the Rocky Mountains; it is saprobic, and grows on sawdust, on wood chips, on stumps, and on the ground.Kuo, M. (2005, October). ''Leucoagaricus americanus''. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/leucoagaricus_americanus.html Description The cap is 3–15 cm and oval in shape when immature, becoming convex to flat when fully grown. The cap feels dry and smooth at the beginning, but gradually gets reddish to reddish brown scales. It is white in color but reddens with maturity or after being handled. The gills are free from the stipe and lie close together. They appear white when young and are stained pinkish to maroon. The stipe is 7–14 cm long, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydowia (journal)
''Sydowia'' is a biannual peer-reviewed scientific journal covering the study of fungi, including their taxonomy, systematics, evolution, structure, development, ecology, pathology in plants, animals, and humans, and biotechnological applications. It is published by Verlag Ferdinand Berger & Söhne. Its editor in chief is Irmgard Krisai-Greilhuber. History The journal was originally established in 1903 under the title ''Annales Mycologici'' by founding editor Hans Sydow. It was continued as ''Annales mycologici, series II'' and retitled with the prefix ''Sydowia'' in Sydow's honour following his death in 1946. ''Sydowia'' was edited by Franz Petrak from 1947 until his death in 1973. Egon Horak succeeded him until 1989. Orlando Petrini took over from 1989 to 1996 and Liliane Petrini until 2004. ''Sydowia'' was published bimonthly from 1947 and biannually since 1992. Now published in English, earlier volumes included papers in English, French, German, Italian, Latin, and Spanish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annulus (mycology)
An annulus is the ring-like or collar-like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remnants of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. It can also be called a ring which is what the Latin word annulus directly translates as. The modern usage of the Latin word originates from the early days of botany and mycology when species descriptions were only written in Latin. Outside of the formal setting of scientific publications which still have a Latin requirement, it will often just be referred to as a ring or stem ring in field guide A field guide is a book designed to help the reader identify wildlife (flora or fauna) or other objects of natural occurrence (e.g. rocks and minerals). It is generally designed to be brought into the "field" or local area where such objects exi ...s and on identification websites. Ring descriptions The way in which the structure and appea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucoagaricus Badhamii
''Leucoagaricus badhamii'' is a species of fungus in the family Agaricaceae. The flesh of this mushroom turns blood red when cut or bruised, hence its common name of blushing dapperling. These damaged areas may eventually turn brown or black and likewise the mushroom may discolour brown or black with age. All parts of the flesh display red staining aiding in identification. Taxonomy This mushroom was first described by the British mycologists Miles Joseph Berkeley and Christopher Edmund Broome in 1854 who gave it the name ''Agaricus badhamii''. In 1943 the French mycologist Marcel Locquin moved this species to the genus ''Leucocoprinus'' and some modern sources still refer to it as ''Leucocoprinus badhamii'' however in 1951 it was reclassified as a ''Leucoagaricus'' species by the German mycologist Rolf Singer. Etymology ''Leucoagaricus'' gets its name from the Greek ''Leucos'' meaning white and Latin or Greek ''Agaricus'' meaning 'of the country'. ''Badhamii'' is named for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
