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Pulveroboletus Ravenelii
''Pulveroboletus ravenelii'', commonly known as Ravenel's bolete or the powdery sulfur bolete, is a species of bolete fungus in the family Boletaceae. Described as new to science in 1853, the widely distributed species is known from Asia, Australia, North America, Central America, and South America. Mycorrhizal with oak, the fungus fruits on the ground singly, scattered, or in groups in woods. Fruit bodies (mushrooms) have convex to flat, yellowish to brownish-red caps up to in diameter. On the cap underside, the pore surface is bright yellow before turning dingy yellow to grayish brown with age; it stains greenish blue then grayish brown after injury. A cottony and powdery partial veil remains as a ring on the stipe. The mushrooms are edible, and have been used in traditional Chinese medicine and for mushroom dyeing. Taxonomy The species was first described as ''Boletus ravenelii'' by Miles Joseph Berkeley and Moses Ashley Curtis in 1853. Specimens were sent to them by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berk
Berk may refer to: * Berk (name), a surname, given name, or any of several people with that name * Berk, Bolu, Turkey, a village * Berk Trade and Business School, New York City * Berk, a fictional island in the ''How to Train Your Dragon'' series of books and films * , a torpedo cruiser of the Ottoman Navy later renamed ''Berk'' * Berk, rhyming slang#Taboo terms, rhyming slang often used to mean "foolish person" * ''Berk.'', taxonomic author abbreviation of Miles Joseph Berkeley (1803–1889), English cryptogamist and founder of the science of plant pathology See also * Berk–Tabatznik syndrome, a medical condition * De Berk (other) * Berks (other) * Birk (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry William Ravenel
Henry William Ravenel (May 19, 1814 – July 17, 1887) was an American planter and botanist. He studied fungi and cryptogams in South Carolina, discovering a large number of new species. The genus '' Ravenelia'' is named after him, along with many of the species he discovered. Biography Early life Henry William Ravenel was born on May 19, 1814 on the Pooshee Plantation in Berkeley County, South Carolina. The plantation had been in his family since before 1716. It now lies beneath the waters of Lake Moultrie, which was created in 1939. The nearest existing place is Bonneau. He attended the nearby Pineville Academy and graduated in 1832 from South Carolina College, now the University of South Carolina, where he was a member of the Clariosophic Society The Clariosophic Society, also known as ΜΣΦ (Mu Sigma Phi), is a literary society founded in 1806 at the University of South Carolina, then known as South Carolina College, as a result of the splitting in two of the Ph ... [...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] |
Micrometre
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . The longest human chromosome, chromosome 1, is approximately in length. Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of ... [...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] |
Spore Print
300px, Making a spore print of the mushroom ''Volvariella volvacea'' shown in composite: (photo lower half) mushroom cap laid on white and dark paper; (photo upper half) cap removed after 24 hours showing pinkish-tan spore print. A 3.5-centimeter glass slide placed in middle allows for examination of spore characteristics under a microscope. image:spore Print ID.gif, 300px, A printable chart to make a spore print and start identification The spore print is the powdery deposit obtained by allowing spores of a fungal sporocarp (fungi), fruit body to fall onto a surface underneath. It is an important diagnostic character in most handbooks for identifying mushrooms. It shows the colour of the mushroom spores if viewed en masse. Method A spore print is made by placing the spore-producing surface flat on a sheet of dark and white paper or on a sheet of clear, stiff plastic, which facilitates moving the spore print to a darker or lighter surface for improved contrast; for example, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycelium
Mycelium (plural mycelia) is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. Fungal colonies composed of mycelium are found in and on soil and many other substrate (biology), substrates. A typical single spore germinates into a Monokaryon, monokaryotic mycelium, which cannot reproduce sexually; when two compatible monokaryotic mycelia join and form a dikaryotic mycelium, that mycelium may form sporocarp (fungi), fruiting bodies such as mushrooms. A mycelium may be minute, forming a colony that is too small to see, or may grow to span thousands of acres as in ''Armillaria''. Through the mycelium, a fungus absorbs nutrients from its environment. It does this in a two-stage process. First, the hyphae secrete enzymes onto or into the food source, which break down biopolymers, biological polymers into smaller units such as monomers. These monomers are then absorbed into the mycelium by facilitated diffusion and active transport. Mycelia are v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hickory
Hickory is a common name for trees composing the genus ''Carya'', which includes around 18 species. Five or six species are native to China, Indochina, and India (Assam), as many as twelve are native to the United States, four are found in Mexico, and two to four are native to Canada. A number of hickory species are used for products like edible nuts or wood. Hickories are temperate forest trees with pinnately compound leaves and large nuts. Hickory flowers are small, yellow-green catkins produced in spring. They are wind-pollinated and self-incompatible. The fruit is a globose or oval nut, long and diameter, enclosed in a four-valved husk, which splits open at maturity. The nut shell is thick and bony in most species, and thin in a few, notably the pecan (''C. illinoinensis''); it is divided into two halves, which split apart when the seed germinates. Etymology The name "hickory" derives from a Native American word in an Algonquian language (perhaps Powhatan). It is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trama (mycology)
In mycology, the term trama is used in two ways. In the broad sense, it is the inner, fleshy portion of a mushroom's basidiocarp, or fruit body. It is distinct from the outer layer of tissue, known as the pileipellis or cuticle, and from the spore-bearing tissue layer known as the hymenium. In essence, the trama is the tissue that is commonly referred to as the "flesh" of mushrooms and similar fungi.Largent D, Johnson D, Watling R. 1977. ''How to Identify Mushrooms to Genus III: Microscopic Features''. Arcata, CA: Mad River Press. . pp. 60–70. The second use is more specific, and refers to the "hymenophoral trama" that supports the hymenium. It is similarly interior, connective tissue, but it is more specifically the central layer of hyphae running from the underside of the mushroom cap to the lamella or gill, upon which the hymenium rests. Various types have been classified by their structure, including trametoid, cantharelloid, boletoid, and agaricoid, with agaricoid the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulveroboletus Ravenelii 56435
''Pulveroboletus'' is a genus of fungi in the family Boletaceae. The genus has a cosmopolitan distribution and contains 25 species. Taxonomy The genus was first described by American mycologist William Alphonso Murrill in 1909. He defined species in the genus as having a cap and stem "clothed with a conspicuous sulphur-yellow, powdery tomentum, which may be the remains of a universal veil: context white, fleshy; tubes adnate, yellowish, covered with a large veil: spores oblong-ellipsoid, ochraceous-brown: stipe solid, annulate, not reticulate." Murrill set ''Pulveroboletus ravenelii'' as the type species''. Species The genus consists of the following species: Former species *''Pulveroboletus acaulis'', moved to ''Buchwaldoboletus acaulis'' *''Pulveroboletus flaviporus'', moved to ''Aureoboletus flaviporus'' *''Pulveroboletus parvulus'', moved to ''Buchwaldoboletus parvulus'' *''Pulveroboletus phaeocephalus'', moved to ''Xerocomus phaeocephalus'' *''Pulveroboletus viridis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Name
In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrasted with the scientific name for the same organism, which is Latinized. A common name is sometimes frequently used, but that is not always the case. In chemistry, IUPAC defines a common name as one that, although it unambiguously defines a chemical, does not follow the current systematic naming convention, such as acetone, systematically 2-propanone, while a vernacular name describes one used in a lab, trade or industry that does not unambiguously describe a single chemical, such as copper sulfate, which may refer to either copper(I) sulfate or copper(II) sulfate. Sometimes common names are created by authorities on one particular subject, in an attempt to make it possible for members of the general public (including such interested par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulveroboletus
''Pulveroboletus'' is a genus of fungi in the family Boletaceae. The genus has a cosmopolitan distribution and contains 25 species. Taxonomy The genus was first described by American mycologist William Alphonso Murrill in 1909. He defined species in the genus as having a cap and stem "clothed with a conspicuous sulphur-yellow, powdery tomentum, which may be the remains of a universal veil: context white, fleshy; tubes adnate, yellowish, covered with a large veil: spores oblong-ellipsoid, ochraceous-brown: stipe solid, annulate, not reticulate." Murrill set ''Pulveroboletus ravenelii'' as the type species''. Species The genus consists of the following species: Former species *''Pulveroboletus acaulis'', moved to ''Buchwaldoboletus acaulis'' *''Pulveroboletus flaviporus'', moved to ''Aureoboletus flaviporus'' *''Pulveroboletus parvulus'', moved to ''Buchwaldoboletus parvulus'' *''Pulveroboletus phaeocephalus'', moved to ''Xerocomus phaeocephalus'' *''Pulveroboletus viridis'', move ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
