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Lactarius Subtorminosus
''Lactarius subtorminosus'' is a member of the "milk-cap" genus ''Lactarius'' in the order Russulales. Described as new to science by William Chambers Coker in 1918, it is known from North America. The whitish to cream-colored cap reaches in diameter and is tomentose, with margins folded inward. The gills are packed closely together, and are cream when mature. Gills that are cut will first turn pink then light brown. The stem is about long and thick, white overall with a few cream dots, and covered with a dense layer of small hairs. When cut or injured, the fruit bodies will ooze a sparse whitish latex with a taste similar to cypress wood. The spores are roughly spherical, warted, and measure 5.8–6.5 by 6.5–7 μm 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 Unit .... ''Lact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Chambers Coker
William Chambers Coker (October 24, 1872 – June 26, 1953) was an American botanist and mycologist. Biography He was born at Hartsville, South Carolina on October 24, 1872. He graduated from South Carolina College in 1894 and took postgraduate courses at Johns Hopkins University and in Germany. He taught for several years in the summer schools of the Brooklyn Institute of Arts and Sciences, at Cold Spring Harbor, L. I., and in 1902 became associate professor of botany at the University of North Carolina. He established the Coker Arboretum in 1903. He was made professor in 1907 and Kenan professor of botany in 1920. In 1903, he was chief of the botanic staff of the Bahama Expedition of the Geographical Society of Baltimore. Professor Coker was a member of many scientific societies and the author of ''The Plant Life of Hartsville, S. C.'' (1912); ''The Trees of North Carolina'' (with Henry Roland Totten) (1916); and ''The Saprolegniaceae of the United States'' (1921). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactarius (fungus)
''Lactarius'' is a genus of mushroom-producing, ectomycorrhizal fungi, containing several edible species. The species of the genus, commonly known as milk-caps, are characterized by the milky fluid ("latex") they exude when cut or damaged. Like the closely related genus ''Russula'', their flesh has a distinctive brittle consistency. It is a large genus with over 500 known species, mainly distributed in the Northern hemisphere. Recently, the genus ''Lactifluus'' has been separated from ''Lactarius'' based on molecular phylogenetic evidence. Systematics and taxonomy The genus ''Lactarius'' was described by Christian Hendrik Persoon in 1797 with '' L. piperatus'' as the original type species. In 2011, '' L. torminosus'' was accepted as the new type of the genus after the splitting-off of ''Lactifluus'' as separate genus. The name "''Lactarius''" is derived from the Latin ''lac'', "milk". Placement within Russulaceae Molecular phylogenetics uncovered that, while macromorphologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russulales
The Russulales are an order of the Agaricomycetes, (which include the agaric genera ''Russula'' and '' Lactarius'' and their polyporoid and corticioid relatives). According to the ''Dictionary of the Fungi'' (10th edition, 2008), the order consists of 12 families, 80 genera, and 1767 species. According to ''Species Fungorum'' (January 2016), the order contains 13 families, 117 genera (16 not assigned to a family), and 3,060 species. Russuloid agarics represent an independent evolutionary line of agarics, not directly related to the Agaricales. This group also includes a number of russuloid hypogeous fungi, polypores such as ''Bondarzewia'', some tooth fungi (e.g. '' Auriscalpium vulgare''), and club fungi e.g. '' Artomyces''. Basidiospores in this group are typically ornamented with amyloid warts or reticulation but a few exceptions are known, e.g. '' Heterobasidion annosum''. The genus ''Clavicorona'' was often treated in the Russulales, but its type species, '' C. taxop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pileus (mycology)
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.Moore-Landecker, E: "Fundamentals of the Fungi", page 560. Prentice Hall, 1972. The hymenium (hymenophore) may consist of lamellae, tubes, or teeth, on the underside of the pileus. A pileus is characteristic of agarics, boletes, some polypores, tooth fungi, and some ascomycetes. Classification Pilei can be formed in various shapes, and the shapes can change over the course of the developmental cycle of a fungus. The most familiar pileus shape is hemispherical or ''convex.'' Convex pilei often continue to expand as they mature until they become flat. Many well-known species have a convex pileus, including the button mushroom, various ''Amanita'' species and boletes. Some, such as the parasol mushroom, have distinct bosses or umbos and are described as ''umbonate''. An umbo is a knobby protrusion at the center of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (mycology)
In mycology, a lamella, or gill, is a papery hymenophore rib under the cap of some mushroom species, most often agarics. The gills are used by the mushrooms as a means of spore dispersal, and are important for species identification. The attachment of the gills to the stem is classified based on the shape of the gills when viewed from the side, while color, crowding and the shape of individual gills can also be important features. Additionally, gills can have distinctive microscopic or macroscopic features. For instance, ''Lactarius'' species typically seep latex from their gills. It was originally believed that all gilled fungi were Agaricales, but as fungi were studied in more detail, some gilled species were demonstrated not to be. It is now clear that this is a case of convergent evolution (i.e. gill-like structures evolved separately) rather than being an anatomic feature that evolved only once. The apparent reason that various basidiomycetes have evolved gills is that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stipe (mycology)
In mycology, a stipe () is the stem or stalk-like feature supporting the cap of a mushroom. Like all tissues of the mushroom other than the hymenium, the stipe is composed of sterile hyphal tissue. In many instances, however, the fertile hymenium extends down the stipe some distance. Fungi that have stipes are said to be stipitate. The evolutionary benefit of a stipe is generally considered to be in mediating spore dispersal. An elevated mushroom will more easily release its spores into wind currents or onto passing animals. Nevertheless, many mushrooms do not have stipes, including cup fungi, puffballs, earthstars, some polypores, jelly fungi, ergots, and smuts. It is often the case that features of the stipe are required to make a positive identification of a mushroom. Such distinguishing characters include: # the texture of the stipe (fibrous, brittle, chalky, leathery, firm, etc.) # whether it has remains of a partial veil (such as an annulus or cortina) or universal ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latex
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms). It is a complex emulsion that coagulates on exposure to air, consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants, deriving from the Latin word for "liquid". It serves mainly as defense against herbivorous insects. Latex is not to be confused with plant sap; it is a distinct substance, separately produced, and with different functions. The word latex is also used to refer to natural latex rubber, particularly non-vulcanized rubber. Such is the case in products like latex gloves, latex condoms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypress
Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word ''cypress'' is derived from Old French ''cipres'', which was imported from Latin ''cypressus'', the latinisation of the Greek κυπάρισσος (''kyparissos''). Cypress trees are a large classification of conifers, encompassing the trees and shrubs from the cypress family (Cupressaceae) and many others with the word “cypress” in their common name. Many cypress trees have needle-like, evergreen foliage and acorn-like seed cones. Species Species that are commonly known as cypresses include: Most prominently: *Cypress (multiple species within the genus '' Cupressus'') Otherwise: *African cypress (''Widdringtonia'' species), native to Southern Africa *Bald, Pond, and Montezuma cypresses (''Taxodium'' species), native to North America *Chinese swamp cypress (''Glyptostrobus pensilis''), Vietnam, critically endangered *Cordilleran ... [...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] |
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] |
Lactarius Torminosus
''Lactarius torminosus'', commonly known as the woolly milkcap or the bearded milkcap, is a large agaric fungus. A common and widely distributed species, it is found in North Africa, northern Asia, Europe, and North America. It was first described scientifically by Jacob Christian Schäffer in 1774 as an ''Agaricus'', and later transferred to the genus ''Lactarius'' in 1821 by Samuel Frederick Gray. A variety, ''L. torminosus'' var. ''nordmanensis'', is known from the United States, Canada, and Switzerland. ''L. torminosus'' officially became the type species of ''Lactarius'' in 2011 after molecular studies prompted the taxonomic reshuffling of species between several Russulaceae genera. A mycorrhizal species, ''L. torminosus'' associates with various trees, most commonly birch, and its fruit bodies (mushrooms) grow on the ground singly or in groups in mixed forests. The caps of ''L. torminosus'' mushrooms are convex with a central depression, and attain a dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lactarius Species ...
The genus ''Lactarius'' has about 583 members worldwide. The type species is ''Lactarius torminosus''. Probably the best known and most widely eaten is ''Lactarius deliciosus''. A large number of species were split into the ''Lactifluus'' genus based on molecular phylogenetic evidence. Key Species English names References Footnotes Citations Sources * * * * *{{cite web , url=http://www.fungi4schools.org/Reprints/ENGLISH_NAMES.pdf , title=Recommended English Names for Fungi in the UK , publisher=British Mycological Society , url-status=dead , archive-url=https://web.archive.org/web/20110716083053/http://www.fungi4schools.org/Reprints/ENGLISH_NAMES.pdf , archive-date=2011-07-16 * Lactarius ''Lactarius'' is a genus of mushroom-producing, ectomycorrhizal fungi, containing several edible species. The species of the genus, commonly known as milk-caps, are characterized by the milky fluid ("latex") they exude when cut or damaged. Like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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