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Urnula Craterium Xsection
''Urnula'' is a genus of cup fungi in the family Sarcosomataceae, circumscribed by Elias Magnus Fries in 1849. The genus contains several species found in Asia, Europe, Greenland, and North America. Sarcosomataceae fungi produce dark-colored (brown to black), shallow to deep funnel-shaped fruitbodies with or without a stipe, growing in spring. The type species of the genus is ''Urnula craterium'', commonly known as the devil's urn or the gray urn. ''Urnula'' species can grow as saprobes or parasites having an anamorphic state. The anamorphic form of ''U. craterium'' causes Strumella canker, on oak trees. Taxonomy Elias Magnus Fries circumscribed the new genus ''Urnula'' in 1849, and set what was then known as ''Peziza craterium'' as the type species. The genus name means "little urn"; the specific epithet is derived from the Latin '' cratera'', referring to a type of bowl used in antiquity. Description Imperfect states The life cycle of ''Urnula craterium'' allows for b ... [...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] |
Specific Name (botany)
A botanical name is a formal scientific name conforming to the '' International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the ''International Code of Nomenclature for Cultivated Plants'' (ICNCP). The code of nomenclature covers "all organisms traditionally treated as algae, fungi, or plants, whether fossil or non-fossil, including blue-green algae (Cyanobacteria), chytrids, oomycetes, slime moulds and photosynthetic protists with their taxonomically related non-photosynthetic groups (but excluding Microsporidia)." The purpose of a formal name is to have a single name that is accepted and used worldwide for a particular plant or plant group. For example, the botanical name ''Bellis perennis'' denotes a plant species which is native to most of the countries of Europe and the Middle East, where it has accumulated various names in many languages. Later, the plant was introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urnula Mediterranea
''Urnula'' is a genus of cup fungi in the family Sarcosomataceae, circumscribed by Elias Magnus Fries in 1849. The genus contains several species found in Asia, Europe, Greenland, and North America. Sarcosomataceae fungi produce dark-colored (brown to black), shallow to deep funnel-shaped fruitbodies with or without a stipe, growing in spring. The type species of the genus is ''Urnula craterium'', commonly known as the devil's urn or the gray urn. ''Urnula'' species can grow as saprobes or parasites having an anamorphic state. The anamorphic form of ''U. craterium'' causes Strumella canker, on oak trees. Taxonomy Elias Magnus Fries circumscribed the new genus ''Urnula'' in 1849, and set what was then known as ''Peziza craterium'' as the type species. The genus name means "little urn"; the specific epithet is derived from the Latin '' cratera'', referring to a type of bowl used in antiquity. Description Imperfect states The life cycle of ''Urnula craterium'' allows for b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urnula Hiemalis
''Urnula'' is a genus of cup fungi in the family Sarcosomataceae, circumscribed by Elias Magnus Fries in 1849. The genus contains several species found in Asia, Europe, Greenland, and North America. Sarcosomataceae fungi produce dark-colored (brown to black), shallow to deep funnel-shaped fruitbodies with or without a stipe, growing in spring. The type species of the genus is ''Urnula craterium'', commonly known as the devil's urn or the gray urn. ''Urnula'' species can grow as saprobes or parasites having an anamorphic state. The anamorphic form of ''U. craterium'' causes Strumella canker, on oak trees. Taxonomy Elias Magnus Fries circumscribed the new genus ''Urnula'' in 1849, and set what was then known as ''Peziza craterium'' as the type species. The genus name means "little urn"; the specific epithet is derived from the Latin '' cratera'', referring to a type of bowl used in antiquity. Description Imperfect states The life cycle of ''Urnula craterium'' allows for b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urnula Helvelloides
''Urnula helvelloides'' is a species of 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 th ... in the family Sarcosomataceae that is found in Europe and Asia. It was described as new to science in 1973. References External links * Fungi described in 1973 Fungi of Asia Fungi of Europe Pezizales {{Pezizomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urnula Groenlandica
''Urnula'' is a genus of cup fungi in the family Sarcosomataceae, circumscribed by Elias Magnus Fries in 1849. The genus contains several species found in Asia, Europe, Greenland, and North America. Sarcosomataceae fungi produce dark-colored (brown to black), shallow to deep funnel-shaped fruitbodies with or without a stipe, growing in spring. The type species of the genus is ''Urnula craterium'', commonly known as the devil's urn or the gray urn. ''Urnula'' species can grow as saprobes or parasites having an anamorphic state. The anamorphic form of ''U. craterium'' causes Strumella canker, on oak trees. Taxonomy Elias Magnus Fries circumscribed the new genus ''Urnula'' in 1849, and set what was then known as ''Peziza craterium'' as the type species. The genus name means "little urn"; the specific epithet is derived from the Latin '' cratera'', referring to a type of bowl used in antiquity. Description Imperfect states The life cycle of ''Urnula craterium'' allows for b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardwood
Hardwood is wood from dicot trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from angiosperm trees) contrasts with softwood (which is from gymnosperm trees). Characteristics Hardwoods are produced by angiosperm trees that reproduce by flowers, and have broad leaves. Many species are deciduous. Those of temperate regions lose their leaves every autumn as temperatures fall and are dormant in the winter, but those of tropical regions may shed their leaves in response to seasonal or sporadic periods of drought. Hardwood from deciduous species, such as oak, normally shows annual growth rings, but these may be absent in some tropical hardwoods. Hardwoods have a more complex structure than softwoods and are often much slower growing as a result. The dominant feature separating "hardwoods" from softwoods is the presence o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canker
A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticulture. Their causes include a wide range of organisms as fungi, bacteria, mycoplasmas and viruses. The majority of canker-causing organisms are bound to a unique host species or genus, but a few will attack other plants. Weather and animals can spread canker, thereby endangering areas that have only slight amount of canker. Although fungicides or bactericides can treat some cankers, often the only available treatment is to destroy the infected plant to contain the disease. Examples * Apple canker, caused by the fungus ''Neonectria galligena'' * Ash bacterial canker, now understood to be caused by the bacterium '' Pseudomonas savastanoi'', rather than ''Pseudomonas syringae''. After DNA-relatedness studies ''Pseudomonas savastanoi'' has bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Pathogen
Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. Overview Control of plant diseases is crucial to the reliable production of food, and it provides significant problems in agricultural use of land, water, fuel and other inputs. Plants in both natural and cultivated populat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conidium
A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the way they are generated through the cellular process of mitosis. The two new haploid cells are genetically identical to the haploid parent, and can develop into new organisms if conditions are favorable, and serve in biological dispersal. Asexual reproduction in ascomycetes (the phylum Ascomycota) is by the formation of conidia, which are borne on specialized stalks called conidiophores. The morphology of these specialized conidiophores is often distinctive between species and, before the development of molecular techniques at the end of the 20th century, was widely used for identification of (''e.g.'' ''Metarhizium'') species. The terms microconidia and macroconidia are sometimes used. Conidiogenesis There are two main types of co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperfect Fungi
The fungi imperfecti or imperfect fungi, are fungi which do not fit into the commonly established Taxonomy (biology), taxonomic classifications of fungi that are based on biological species concepts or morphological characteristics of sexual structures because their sexual form of reproduction has never been observed. They are known as imperfect fungi because only their asexual and vegetative phases are known. They have asexual form of reproduction, meaning that these fungi produce their spores asexually, in the process called sporogenesis. There are about 25,000 species that have been classified in the deuteromycota and many are basidiomycota or ascomycota Teleomorph, anamorph and holomorph, anamorphs. Fungi producing the antibiotic penicillin and those that cause athlete's foot and Candida (genus), yeast infections are algal fungi. In addition, there are a number of edible imperfect fungi, including the ones that provide the distinctive characteristics of Roquefort cheese, Roqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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