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Diacanthodes
''Diacanthodes'' is a genus of three species of poroid fungi in the family Meruliaceae. Taxonomy The genus was circumscribed by mycologist Rolf Singer in 1945, with ''Daedalea philippinensis'' as the type species. This fungus was originally described by French mycologist Narcisse Théophile Patouillard] in 1915 as ''Daedalea philippinensis''. Description Basidiocarp, Fruit bodies of ''Diacanthodes'' fungi have circular caps that may be partially funnel-shaped (infundibuliform), and a surface texture ranging from tomentose (covered with densely entangled hairs) to strigose (with stiff, sharp-pointed hairs). The colour of the pore surface is light brown, but it darkens with time. ''Diacanthodes'' has a dimitic hyphal system, meaning it contains both generative hyphae and skeletal hyphae. The generative hyphae have clamp connections; the skeletal hyphae are thick-walled to solid, and have a weak dextrinoid reaction. The spores are broadly ellipsoid An ellipsoid is a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diacanthodes Griseus
''Diacanthodes'' is a genus of three species of poroid fungi in the family Meruliaceae. Taxonomy The genus was circumscribed by mycologist Rolf Singer in 1945, with ''Daedalea philippinensis'' as the type species. This fungus was originally described by French mycologist Narcisse Théophile Patouillard] in 1915 as ''Daedalea philippinensis''. Description Basidiocarp, Fruit bodies of ''Diacanthodes'' fungi have circular caps that may be partially funnel-shaped (infundibuliform), and a surface texture ranging from tomentose (covered with densely entangled hairs) to strigose (with stiff, sharp-pointed hairs). The colour of the pore surface is light brown, but it darkens with time. ''Diacanthodes'' has a dimitic hyphal system, meaning it contains both generative hyphae and skeletal hyphae. The generative hyphae have clamp connections; the skeletal hyphae are thick-walled to solid, and have a weak dextrinoid reaction. The spores are broadly ellipsoid An ellipsoid is a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diacanthodes Novoguineensis
''Diacanthodes'' is a genus of three species of poroid fungi in the family Meruliaceae. Taxonomy The genus was circumscribed by mycologist Rolf Singer in 1945, with ''Daedalea philippinensis'' as the type species. This fungus was originally described by French mycologist Narcisse Théophile Patouillard] in 1915 as ''Daedalea philippinensis''. Description Basidiocarp, Fruit bodies of ''Diacanthodes'' fungi have circular caps that may be partially funnel-shaped (infundibuliform), and a surface texture ranging from tomentose (covered with densely entangled hairs) to strigose (with stiff, sharp-pointed hairs). The colour of the pore surface is light brown, but it darkens with time. ''Diacanthodes'' has a dimitic hyphal system, meaning it contains both generative hyphae and skeletal hyphae. The generative hyphae have clamp connections; the skeletal hyphae are thick-walled to solid, and have a weak dextrinoid reaction. The spores are broadly ellipsoid An ellipsoid is a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diacanthodes Fluminensis
''Diacanthodes'' is a genus of three species of poroid fungi in the family Meruliaceae. Taxonomy The genus was circumscribed by mycologist Rolf Singer in 1945, with ''Daedalea philippinensis'' as the type species. This fungus was originally described by French mycologist Narcisse Théophile Patouillard] in 1915 as ''Daedalea philippinensis''. Description Basidiocarp, Fruit bodies of ''Diacanthodes'' fungi have circular caps that may be partially funnel-shaped (infundibuliform), and a surface texture ranging from tomentose (covered with densely entangled hairs) to strigose (with stiff, sharp-pointed hairs). The colour of the pore surface is light brown, but it darkens with time. ''Diacanthodes'' has a dimitic hyphal system, meaning it contains both generative hyphae and skeletal hyphae. The generative hyphae have clamp connections; the skeletal hyphae are thick-walled to solid, and have a weak dextrinoid reaction. The spores are broadly ellipsoid An ellipsoid is a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meruliaceae
The Meruliaceae are a family of fungi in the order Polyporales. According to a 2008 estimate, the family contains 47 genera and 420 species. , Index Fungorum accepts 645 species in the family. Taxonomy The family was formally circumscribed by English mycologist Carleton Rea in 1922, with ''Merulius'' as the type genus. He also included the genera ''Phlebia'', '' Coniophora'' (now placed in the Coniophoraceae), and ''Coniophorella'' (now considered a synonym of ''Coniophora''). His description of the Meruliaceae was as follows: "Hymenium spread over veins, anastomosing pores, or quite smooth; ''edge of veins or pores fertile.''" Several genera formerly classified in the Meruliaceae were moved to the family Steccherinaceae based on molecular evidence. Description Meruliaceae species are crust-like or polyporoid, and often have a waxy appearance when dry. Their hyphal systems are monomitic (containing only tightly arranged generative hyphae), and these hyphae have clamp connec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dextrinoid
In mycology a tissue or feature is said to be amyloid if it has a positive amyloid reaction when subjected to a crude chemical test using iodine as an ingredient of either Melzer's reagent or Lugol's solution, producing a blue to blue-black staining. The term "amyloid" is derived from the Latin ''amyloideus'' ("starch-like"). It refers to the fact that starch gives a similar reaction, also called an amyloid reaction. The test can be on microscopic features, such as spore walls or hyphal walls, or the apical apparatus or entire ascus wall of an ascus, or be a macroscopic reaction on tissue where a drop of the reagent is applied. Negative reactions, called inamyloid or nonamyloid, are for structures that remain pale yellow-brown or clear. A reaction producing a deep reddish to reddish-brown staining is either termed a dextrinoid reaction (pseudoamyloid is a synonym) or a hemiamyloid reaction. Melzer's reagent reactions Hemiamyloidity Hemiamyloidity in mycology refers to a special c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basidiospore
A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. Typically, four basidiospores develop on appendages from each basidium, of which two are of one strain and the other two of its opposite strain. In gills under a cap of one common species, there exist millions of basidia. Some gilled mushrooms in the order Agaricales have the ability to release billions of spores. The puffball fungus ''Calvatia gigantea'' has been calculated to produce about five trillion basidiospores. Most basidiospores are forcibly discharged, and are thus considered ballistospores. These spores serve as the main air dispersal units for the fungi. The spores are released during periods of high humidity and generally have a night-time or pre-dawn peak concentration in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipsoid
An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the zero set of a polynomial of degree two in three variables. Among quadric surfaces, an ellipsoid is characterized by either of the two following properties. Every planar cross section is either an ellipse, or is empty, or is reduced to a single point (this explains the name, meaning "ellipse-like"). It is bounded, which means that it may be enclosed in a sufficiently large sphere. An ellipsoid has three pairwise perpendicular axes of symmetry which intersect at a center of symmetry, called the center of the ellipsoid. The line segments that are delimited on the axes of symmetry by the ellipsoid are called the ''principal axes'', or simply axes of the ellipsoid. If the three axes have different lengths, the figure is a triaxial ellipsoid (r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leif Ryvarden
Leif Randulff Ryvarden (born 9 August 1935) is a Norwegian mycologist. Early life and education Leif Ryvarden was born in Bergen as a son of Einar Norberg Johansen (1900–1959) and Hjørdis Randulff (1912–1975). He finished his secondary education at Berg in 1954 and took basic military education from 1957 to 1958 and in 1956 he changed his last name from Johansen to Ryvarden. He studied chemistry at the Norwegian Institute of Technology. In 1961 he ran for election as chairman of Student Society in Trondheim, albeit unsuccessfully. In 1963, he graduated with the siv.ing. degree , and later majored in botany at the University of Oslo, taking a cand.real. degree. He also studied in London from 1971 to 1972, a stay that sparked his interest in mycology. Academic career Ryvarden conducted field work in about eighty countries, mostly in a tropical environment. From 1965 to 1966, he was employed as research assistant at the Norwegian Institute of Technology, from 1966 to 1972 as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bondarzewia
''Bondarzewia'' is a widely distributed genus of fungi in the family Bondarzewiaceae. The genus was circumscribed by mycologist Rolf Singer Rolf Singer (June 23, 1906 – January 18, 1994) was a Germany, German-born mycologist and one of the most important Taxonomy (biology), taxonomists of gilled mushrooms (agarics) in the 20th century. After receiving his Ph.D. at the University ... in 1940. References Russulales Russulales genera Taxa named by Rolf Singer {{Russulales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
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'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Friedrich Burdach ... [...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] |
