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Nothojafnea
''Nothojafnea'' is a genus of two species of cup fungi. It was originally described by Indonesian mycologist Mien Achmad Rifai in 1968 to contain the type species '' Nothojafnea cryptotricha'', found in Australia. '' N. thaxteri'', known from Chile and Argentina, was added to the genus in 1971. Both species are thought to be ectomycorrhizal; ''N. cryptotricha'' associates with Myrtaceae, while ''N. thaxteri'' is found with ''Nothofagus''. ''Nothojafnea'' is traditionally classified in the family Pyronemataceae, due to its ornamented spores and apothecial hairs. Recent molecular evidence suggests that the South American ''N. thaxteri'' represents an early diverging lineage in the Tuberaceae, closely related to the Australasian genera ''Reddellomyces'', ''Labyrinthomyces'', and ''Dingleya ''Dingleya'' is a genus of truffles in the Tuberaceae family. The genus contains seven species found in Australia. Circumscribed by James Trappe in 1979, the genus is nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyronemataceae
The Pyronemataceae are a family of fungi in the order Pezizales. It is the largest family of the Pezizales, encompassing 75 genera and approximately 500 species. Phylogenetic analyses does not support the prior classifications of this family, and suggest that the family is not monophyletic as it is currently circumscribed. Morphology Members of the family are diverse in ascomatal or cleistothecial form. Individual taxa may be sessile (without a stipe) to shortly stipitate, cupulate (cup-shaped), discoid (disc-shaped), pulvinate (cushion-shaped), or with turbinate (turban-shaped) epigeous apothecia. Also, taxa may be sub-hypogeous to hypogeous with closed, folded, or solid ascomata. Apothecia may range in size from less than 1 mm up to 12 cm in diameter, and may be brightly colored due to carotenoid pigments. Genera of the Pyronemataceae lack unifying macroscopic or microscopic characteristics; this lack of uniting characters has led various authors to propose a variety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as a Kingdom (biology), 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 motility, 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 gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus
''Nothofagus'', also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America (Chile, Argentina) and Australasia (east and southeast Australia, New Zealand, New Guinea, and New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America. Description The leaves are toothed or entire, evergreen or deciduous. The fruit is a small, flattened or triangular nut, borne in cupules containing one to seven nuts. Reproduction Many individual trees are extremely old, and at one time, some populations were thought to be unable to reproduce in present-day conditions where they were growing, except by suckering ( clon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labyrinthomyces
''Labyrinthomyces'' is a genus of truffles in the Tuberaceae The Tuberaceae () are a family of mycorrhizal fungi in the order Pezizales, that evolved during or after the first major radiation of Angiosperms in the Jurassic period (140–180 million years ago, Mya). It includes the genus '' Tuber'', wh ... family. The genus, circumscribed by Karel Bernard Boedijn in 1939, contains seven species found in Australia. References External links * {{Taxonbar, from=Q6467742 Pezizales Truffles (fungi) Pezizales genera Taxa named by Karel Bernard Boedijn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reddellomyces
''Reddellomyces'' is a genus of truffle-like fungi A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified ... in the Tuberaceae family. The genus, circumscribed in 1992, contains four species found in Australasia and the Mediterranean. References External links * Pezizales Truffles (fungi) Pezizales genera {{Pezizomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuberaceae
The Tuberaceae () are a family of mycorrhizal fungi in the order Pezizales, that evolved during or after the first major radiation of Angiosperms in the Jurassic period (140–180 million years ago, Mya). It includes the genus '' Tuber'', which includes the so-called "true" truffles. It was characterized by the Belgian botanist Barthélemy Charles Joseph du Mortier in 1822. A molecular study of ribosomal DNA by mycologist Kerry O'Donnell in 1997 found that a small clade now redefined as Helvellaceae The Helvellaceae are a family of ascomycete fungi, the best-known members of which are the elfin saddles of the genus '' Helvella''. Originally erected by Elias Magnus Fries in 1823 as ''Elvellacei'', it contained many genera. Several of these, ... is most closely related to the Tuberaceae. The mycologist Mary Cloyd Burnley Stifler studied and described fungal family, donating specimens to herbariums across the United States. References Pezizales Truffles (fungi) A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lineage (evolution)
An evolutionary lineage is a temporal series of populations, organisms, cells, or genes connected by a continuous line of descent from ancestor to descendant.The Oxford English Dictionary defines biological lineage as "a sequence of species each of which is considered to have evolved from its predecessorOED definition of lineage/ref> Lineages are subsets of the evolutionary tree of life. Lineages are often determined by the techniques of molecular systematics. Phylogenetic representation of lineages 299x299px, A rooted tree of life into three ancient monophyletic lineages: archaea.html" ;"title="bacteria, archaea">bacteria, archaea, and eukaryotes based on rRNA genes Lineages are typically visualized as subsets of a phylogenetic tree. A lineage is a single line of descent or linear chain within the tree, while a clade is a (usually branched) monophyletic group, containing a single ancestor and all its descendants. Phylogenetic trees are typically created from DNA, RNA or prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apothecium
An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are most commonly bowl-shaped (apothecia) but may take on a spherical or flask-like form that has a pore opening to release spores (perithecia) or no opening (cleistothecia). Classification The ascocarp is classified according to its placement (in ways not fundamental to the basic taxonomy). It is called ''epigeous'' if it grows above ground, as with the morels, while underground ascocarps, such as truffles, are termed ''hypogeous''. The structure enclosing the hymenium is divided into the types described below (apothecium, cleistothecium, etc.) and this character ''is'' important for the taxonomic classification of the fungus. Apothecia can be relatively large and fleshy, whereas the others are microscopic—about the size of flecks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascospore
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of one (e.g. '' Monosporascus cannonballus''), two, four, or multiples of four. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. '' Tympanis'') with hundreds of conidia, or the ascospores may fragment, e.g. some '' Cordyceps'', also filling the asci with smaller cells. Ascospores are nonmotile, usually single celled, but not infrequently may be coenocytic (lacking a septum), and in some cases coenocytic in multiple planes. Mitotic divisions within the developing spores populate each resulting cell in septate ascospores with nuclei. The term ocular chamber, or oculus, refers to the epiplasm (the portion of cytoplasm not used in ascospore formation) that is surrounded by the "bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
