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Clitopilus Geminus
''Rhodocybe gemina'' is a species of fungus in the family (biology), family Entolomataceae. It has the recommended English name of tan pinkgill and produces agaric, agaricoid basidiocarps (fruit bodies) that are fleshy and cream when young, becoming brownish when mature. Taxonomy The species was originally named ''Hypophyllum geminum'' in 1793 by French mycologist Jean-Jacques Paulet and transferred to the genus ''Rhodocybe'' in 1987. Prior to this, the species was commonly known as ''Rhodocybe truncata'' (Schaeff.) Rolf Singer, Singer, based on ''Agaricus truncatus'' described by Jacob Christian Schäffer in 1774. No original specimen of Schäffer's species exists, however, and the original description is so ambiguous that it has also been referred to the genus ''Hebeloma'' (as ''Hebeloma truncatum'' (Schaeff.) P. Kumm.) by some authorities. ''Rhodocybe truncata'' is now considered a nomen dubium and is no longer in use. In 2009, as a result of Molecular phylogenetics, molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Jacques Paulet
Jean-Jacques Paulet (26 April 1740 – 4 August 1826) was a French mycologist. Paulet was born in Anduze, France and studied medicine in Montpellier, where he received his PhD in March 1764. He published in Paris in 1765 a book titled ''d’Histoire de la petite vérole, avec les moyens d’en préserver les enfants...'' (History of smallpox, with the means to protect children ...), which was followed by a French translation of the book on smallpox by Abu Bakr Mohammad Ibn Zakariya al-Razi (ninth or tenth century). He completed this series of works by three more books, published in Paris between 1768 and 1776, in which he outlined wide-scale measures of smallpox protection. Paulet was interested in ergotism and published several studies in Mémoires de l’Académie de médecine alongside such scientist as Henri Alexandre Tessier (1741–1837) and Charles Jacques Saillant (1747–1814). He was also known for his opposition to the animal magnetism Animal magnetism, also ... [...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 phylogenetics, 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 (biology), 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 tre ... [...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 warm orange ("tussock") color spore print. A 3.5-centimeter glass slide placed in middle allows for examination of spore characteristics under a microscope. The spore print is the powdery deposit obtained by allowing spores of a fungal 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 is easier to determine whether the spore print is pure white or, rather, very slightly pigmented. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volva (mycology)
In mycology, a volva is a cup-like structure at the base of a mushroom that is a remnant of the universal veil, or the remains of the peridium that encloses the immature fruit bodies of gasteroid fungi. This macrofeature is important in wild mushroom identification because it is an easily observed, taxonomically significant feature that frequently signifies a member of Amanitaceae. This has particular importance due to the disproportionately high number of deadly poisonous species contained within that family. A mushroom's volva is often partially or completely buried in the ground, and therefore care must be taken to check for its presence when identifying mushrooms. Cutting or pulling mushrooms and attempting to identify them later without having noted this feature could be a fatal error. Whilst a volva is a feature best known from ''Amanita'' species and stinkhorns such as the Phallaceae family and others in the Phallales order, it may also occur with other genera in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Veil
In mycology, a partial veil (also called an inner veil, to differentiate it from the "outer", or universal veil) is a temporary structure of tissue found on the fruiting bodies of some Basidiomycota, basidiomycete fungus, fungi, typically agarics. Its role is to isolate and protect the developing Hymenium, spore-producing surface, represented by lamella (mycology), gills or tubes, found on the lower surface of the Pileus (mycology), cap. A partial veil, in contrast to a universal veil, extends from the stipe (mycology), stem surface to the pileus (mycology), cap edge. The partial veil later disintegrates, once the fruiting body has matured and the spores are ready for dispersal. It might then give rise to a annulus (mycology), stem ring, or fragments attached to the stem or cap edge. In some mushrooms, both a partial veil and a universal veil may be present. Structure In the immature basidiocarp, fruit bodies of some basidiomycete fungi, the partial veil extends from the stem surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decurrent
''Decurrent'' (sometimes decurring) is a term used in botany and mycology to describe plant or fungal parts that extend downward. In botany, the term is most often applied to leaf blades that partly wrap or have wings around the stem or petiole and extend down along the stem. A "decurrent branching habit" is a plant form common for shrubs and most angiosperm trees, contrasted with the excurrent or "cone-shaped crown" common among many gymnosperms. The decurrent habit is characterized by having weak apical dominance that eventually produces a rounded or spreading tree crown. Examples of trees with decurrent habit are most hardwood trees: oak, hickory, maple, etc.Claud L. Brown, Robert G. McAlpine, Paul P. Kormanik, "Apical Dominance and Form in Woody Plants: A Reappraisal", ''American Journal of Botany'', Vol. 54, No. 2 (February 1967), pp. 153–162, In mycology, the term is most often applied to the hymenophore of a basidiocarp (such as the lamellae or "gills" of a mushroo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adnate
{{disambiguation ...
Adnate may refer to: * Adnation, in botany, the fusion of two or more whorls of a flower * Adnate, in mycology, a classification of lamellae (gills) * Conjoined twins Conjoined twins, popularly referred to as Siamese twins, are twins joined '' in utero''. It is a very rare phenomenon, estimated to occur in anywhere between one in 50,000 births to one in 200,000 births, with a somewhat higher incidence in south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (mycology)
In mycology, a lamella (: lamellae), 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 evolv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbo (mycology)
'' Cantharellula umbonata'' has an umbo. The cap of '' papillate.html" ;"title="Psilocybe makarorae'' is acutely papillate">Psilocybe makarorae'' is acutely papillate. An umbo is a raised area in the center of a mushroom cap. pileus (mycology), Caps that possess this feature are called ''umbonate''. Umbos that are sharply pointed are called ''acute'', while those that are more rounded are ''broadly umbonate''. If the umbo is elongated, it is ''cuspidate'', and if the umbo is sharply delineated but not elongated (somewhat resembling the shape of a human areola The human areola (''areola mammae'', or ) is the pigmented area on the breast around the nipple. More generally, an areola is a small circular area on the Human body, body with a different histology from the surrounding Tissue (biology), tissue ...), it is called '' mammilate'' or ''papillate''. References {{reflist Fungal morphology and anatomy Mycology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pileus (mycology)
In mycology (the branch of biology that includes the study of mushrooms and other fungi), the pileus is 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. The word ''pileus'' comes from the Latin for a type of felt cap. 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, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pileipellis
The pileipellis is the uppermost layer of hyphae in the pileus of a fungal fruit body. It covers the trama, the fleshy tissue of the fruit body. The pileipellis is more or less synonymous with the cuticle, but the cuticle generally describes this layer as a macroscopic feature, while pileipellis refers to this structure as a microscopic layer. Pileipellis type is an important character in the identification of fungi. Pileipellis types include the cutis, trichoderm, epithelium, and hymeniderm types. Types Cutis A cutis is a type of pileipellis characterized by hyphae that are repent, that is, that run parallel to the pileus surface. In an ixocutis, the hyphae are gelatinous. Trichoderm In a trichoderm, the outermost hyphae emerge roughly parallel, like hairs, perpendicular to the cap surface. The prefix "tricho-" comes from a Greek word for "hair". In an ixotrichodermium, the outermost hyphae are gelatinous. Epithelium An epithelium is a pileipellis consisting of rounded ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A '' polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
