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Agaricus Macrosporus
''Agaricus macrosporus'' is a rare, edible mushroom found from June at wood fringes and in meadows. Description The white cap is hemispherical and white when young, but later flattens out up to 25 cm in diameter and becomes yellowish or tan. Its flesh is very thick. The gills are pinkish grey when young, and become brown with age. The spores measure 12 by 6 μm and are purplish-brown and almond-shaped. The stem is strong and thick, with a broad ring. It may measure 8 to 12 cm in height and up to 3 cm in diameter. The flesh is white with a mild taste and a smell of aniseed, turning slowly orange when cut. Similar species There is a danger of confusing this mushroom with dangerous amanitas such as ''Amanita phalloides'' and ''Amanita pantherina''. ''Agaricus excellens'' is different by its taller and slimmer stipe which is striped lengthwise. ''Agaricus augustus ''Agaricus augustus'', known commonly as the prince, is a basidiomycete fungus of the genus ''Aga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcel Bon
Marcel Bon (17 March 1925 – 11 May 2014)http://fmbds.org/wp-content/uploads/2014/06/CAFAM-2014-CR-complet.pdf was one of France's best known field mycologists. He was born in Picardy in 1925 and came to mycology through general botany, and pharmacology. He lived at Saint-Valery-sur-Somme, a quaint little town on the mouth of the river Somme, in Picardy, Northern France, which was a former artists' and writers' retreat, and is now a popular tourist town. In 1987, along with two artists (John Wilkinson, and Denys Ovenden) he produced a comprehensive field guide for mycologists, ''The Mushrooms and Toadstools of Britain and North-western Europe''. His other skills were as a pianist, an artist, and a skier. Bibliography *''The Mushrooms and Toadstools of Britain and North Western Europe'', Bon M., (1987) pub. Hodder and Stoughton. ** (paperback) ** (hardback). *''Les tricholomes de France et d'Europe occidentale'', Bon. M, (1984) pub. Lechevalier (Paris). *''Fungorum Rariorum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edible Mushroom
Edible mushrooms are the fleshy and edible fruit bodies of several species of macrofungi (fungi which bear fruiting structures that are large enough to be seen with the naked eye). They can appear either below ground (hypogeous) or above ground (epigeous) where they may be picked by hand. Edibility may be defined by criteria that include absence of poisonous effects on humans and desirable taste and aroma. Edible mushrooms are consumed for their nutritional and culinary value. Mushrooms, especially dried shiitake, are sources of umami flavor. Edible mushrooms include many fungal species that are either harvested wild or cultivated. Easily cultivated and common wild mushrooms are often available in markets, and those that are more difficult to obtain (such as the prized truffle, matsutake, and morel) may be collected on a smaller scale by private gatherers. Some preparations may render certain poisonous mushrooms fit for consumption. Before assuming that any wild mushroom is ... [...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] |
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] |
Gill (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 i ... [...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] |
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] |
Amanita Phalloides
''Amanita phalloides'' (), commonly known as the death cap, is a deadly poisonous basidiomycete fungus, one of many in the genus ''Amanita''. Widely distributed across Europe, but now sprouting in other parts of the world, ''A. phalloides'' forms ectomycorrhizas with various broadleaved trees. In some cases, the death cap has been introduced to new regions with the cultivation of non-native species of oak, chestnut, and pine. The large fruiting bodies (mushrooms) appear in summer and autumn; the caps are generally greenish in colour with a white stipe and gills. The cap colour is variable, including white forms, and is thus not a reliable identifier. These toxic mushrooms resemble several edible species (most notably Caesar's mushroom and the straw mushroom) commonly consumed by humans, increasing the risk of accidental poisoning. Amatoxins, the class of toxins found in these mushrooms, are thermostable: they resist changes due to heat, so their toxic effects are not red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amanita Pantherina
''Amanita pantherina'', also known as the panther cap, false blusher, and the panther amanita due to its similarity to the true blusher ('' Amanita rubescens''), is a species of fungus found in Europe and Western Asia. Description *Cap: 5–18 cm wide, hemispheric at first, then convex to plano-convex, deep brown to hazel-brown to pale ochraceous brown, densely distributed warts that are pure white to sordid cream, minutely verruculose, floccose, easily removable. Viscid when wet, with a short striate margin. The flesh is white, unchanging when injured. *Gills: adnexed to free, close to crowded, white becoming greyish, truncate. *Spores: white in deposit, smooth, broadly ellipsoid to ellipsoid to elongate, inamyloid, infrequently globose. 8–14 x 6–10 µm. *Stipe: 5–15 cm long × .6–3 cm wide, subcylindric, somewhat narrowing upward, white, becoming slightly tannish in age, stuffed then hollow, finely floccose becoming smooth above the ring, and wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus Excellens
''Agaricus excellens'' ( French: Psaliote Excellente, German: Riesen-Egerling) is a rare mushroom in the genus ''Agaricus''. It is native to Europe. Description * Cap: It is whitish yellow in color. Spread over 10–15 cm across, it is convex and a bit flat, yellowing slightly at the center especially with age, and densely covered in minute fibrous scales of the same colour. It feels silky. * Stem / Stipe: Stem is 100–140 x 20–35mm, white in color; the ring is thick and white. The underside is scaly or fibrillar. * Gills: The gills are pale-pink and free. * Spores and microscopic features : Spore print is purplish black. Spores are elliptic, measuring 9–12 x 5–7µ. * Flesh and smell: The cap flesh is reddish-white. It tastes sweet and a bit like mushroom, smells slightly of aniseed and almond. Habitat It is commonly found in coniferous and deciduous areas and grows during late autumn to summer amongst grass in open woodland, especially spruce A spruce is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricus Augustus
''Agaricus augustus'', known commonly as the prince, is a basidiomycete fungus of the genus ''Agaricus''. Taxonomy According to Heinemann's (1978) popular division of ''Agaricus'', ''A. augustus'' belongs to section ''Arvenses''. The system proposed by Wasser (2002) classifies ''A. augustus'' within subgenus ''Flavoagaricus'', section ''Majores'', subsection ''Flavescentes''. Moreover, there have been attempts to recognise distinct varieties, namely ''A. augustus'' var. ''augustus'' Fr., and ''A. augustus'' var. ''perrarus'' (Schulzer) Bon & Cappelli. The specific epithet ''augustus'' is a Latin adjective meaning noble. Description The fruiting bodies of ''Agaricus augustus'' are large and distinctive agarics. The cap shape is hemispherical during the so-called button stage, and then expands, becoming convex and finally flat, with a diameter from . The cap cuticle is dry, and densely covered with concentrically arranged, brown-coloured scales on a white to yellow background. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
