
Mushrooms are a type of fungus that produce a fleshy fruiting body, typically consisting of a stalk and an umbrella-shaped cap. The word mushroom is derived from the French word mousseron, which refers to moss. While the term mushroom is often used to describe edible fungi, the term toadstool is generally used for poisonous ones. Mushrooms have various uses, including dyeing wool and other natural fibers, and they play a role in developing new biological remediation techniques and filtration technologies. In some languages, such as Dutch, the word for mushroom is used in compounds, like 'oesterzwam' for oyster mushroom.
| Characteristics | Values |
|---|---|
| Definition | An enlarged complex aboveground fleshy fruiting body of a fungus, typically consisting of a stem bearing a pileus (cap) |
| Synonyms | Toadstool, agarics, bolete, truffle, puffball, stinkhorn, morel |
| Etymology | May be derived from the French word "mousseron" in reference to moss (mousse). The Old English word was "swamm" (similar to swamp). |
| Use in other languages | Dutch, South German, Finnish, Latin |
| Use in a sentence | "She cut up some mushrooms for the salad." |
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What You'll Learn

Mushrooms are a type of fungus, typically with stems, caps, and gills
The gills on a mushroom produce microscopic spores, which help the fungus spread across the ground or its occupant surface. These spores are released in a fine rain of powder from under the caps. At the microscopic level, the spores are shot off from the basidia and then fall between the gills in the dead air space. The colour of the powdery print, or spore print, is useful in classifying and identifying mushrooms.
The term "mushroom" may have been derived from the French word "mousseron" in reference to moss (mousse). The word toadstool first appeared in 14th-century England, possibly implying an inedible poisonous fungus, an association it carries in modern terminology. There is no scientific distinction between the two names, and either can be applied to any fleshy fungus fruiting structure.
Mushrooms can be used for dyeing wool and other natural fibres. They also play a role in the development of new biological remediation techniques and filtration technologies. There is ongoing research in the field of genetic engineering to create enhanced qualities of mushrooms for domains such as nutritional value enhancement and medical use.
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Mushrooms are poisonous or edible
The term "mushroom" is used to describe the fleshy, spore-bearing fruiting bodies of certain fungi, typically produced above ground. The standard for the name "mushroom" is the cultivated white button mushroom, Agaricus bisporus. The word "mushroom" is most often applied to those fungi that have a stem (stipe), a cap (pileus), and gills (lamellae) on the underside of the cap.
Mushrooms can be edible or poisonous, and it is important to accurately identify them before consumption. Poisoning by wild mushrooms is common and may be fatal or cause mild gastrointestinal disturbance or slight allergic reaction. While modern identification of mushrooms is quickly becoming molecular, standard methods for identification are still used by most and have developed into a fine art. The presence of juices upon breaking, bruising reactions, odors, tastes, shades of color, habitat, and season are all considered in the identification process.
Some general rules for avoiding poisonous mushrooms include steering clear of those with white gills, a skirt or ring on the stem, and a bulbous or sack-like base called a volva. Mushrooms with red on the cap or stem should also be avoided. Additionally, it is crucial not to consume any mushrooms unless you are certain of their edibility.
There are also specific tests for certain types of mushrooms. For example, if you have identified a mushroom as a Bolete, there are two checks to make to determine its edibility. First, examine the mushroom for any presence of red, and if found, treat it as poisonous. Second, cut the mushroom in half vertically, and if the flesh stains blue, consider it poisonous.
Another example is the Agaric family, which includes both edible and toxic members. To test for edibility, bruise the cap, and if it stains bright chrome yellow, it is likely poisonous, whereas a pale yellow, pink, or red stain indicates edibility. A further test is to smell the mushroom, with edible Agarics smelling pleasantly of mushroom or with hints of aniseed or almond, while toxic varieties have a chemical or unpleasant odor.
It is worth noting that even within the same family, some mushrooms may be edible, while others are poisonous. For instance, the Brittlegills or Russulas family includes members that are poisonous, delicious, or simply unpleasant-tasting. A good test for edibility within this family is the taste test, where a tiny amount is placed on the tongue. If it burns like a chilli, the mushroom is poisonous, but if it has a pleasant mushroomy taste, it is safe to eat.
Furthermore, some poisonous mushrooms may closely resemble edible ones, increasing the risk of misidentification. For example, the poisonous Jack O'Lantern Mushroom has true gills, while the edible Chanterelles have folds. Additionally, the Destroying Angel, a deadly poisonous species within the Amanita genus, has been mistaken for edible button mushrooms and meadow mushrooms due to their similar appearance.
In summary, mushrooms can be either edible or poisonous, and accurate identification is crucial to avoid poisoning. While there are general rules and specific tests for certain types of mushrooms, the vast diversity of fungi requires attention to detail and expertise even for experienced mycologists. It is always recommended to try a small amount of any new mushroom species before consuming a full meal to account for individual allergies or sensitivities.
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Mushrooms are used in cooking, medicine, and dyeing
Mushrooms are the fleshy, spore-bearing fruiting bodies of fungi, typically produced above ground on soil or another food source. They are used in a variety of ways, including cooking, medicine, and dyeing.
Cooking
Mushrooms are commonly used in cooking, with a variety of species being edible and offering different flavours and textures. The most common type of mushroom is the button mushroom, which is mild in flavour and often used for its texture. They can be added raw to salads, giving a crunchy texture, or cooked to add a deeper, richer flavour. Other types of mushrooms used in cooking include enoki, porcini, oyster, chanterelle, black trumpet, and brown beech mushrooms. Enoki mushrooms are popular in Asian cuisines and can be eaten raw or cooked in soups or stir-fries. Porcini mushrooms are thick and meaty, making them a good meat replacement, while black trumpet mushrooms have a rich, concentrated taste similar to black truffles.
Medicine
Mushrooms have been used as medicine for thousands of years, with ancient cultures such as the Greeks and Chinese using them for their anti-inflammatory and wound-healing properties. Modern science has also recognised the medicinal properties of mushrooms, with research focusing on their use in immunomodulation and integrative oncology. The G lucidum mushroom, for example, has thousands of genes that code for a vast array of compounds, many of which are active constituents with potential medicinal benefits.
Dyeing
Mushrooms can be used to create natural dyes for wool and other natural fibres. The chromophores of mushroom dyes produce strong and vivid colours, and all colours of the spectrum can be achieved. The shingled hedgehog mushroom, for instance, contains blue-green pigments used for dyeing wool in Norway. The fruiting body of Hydnellum peckii can produce shades of beige, blue, or green, depending on the mordant used.
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Mushrooms are also known as 'toadstools' or 'agarics'
Mushrooms are also known as toadstools or agarics. The word "mushroom" is most commonly used to refer to the cultivated white button mushroom, or Agaricus bisporus. This fungus has a stem (stipe), a cap (pileus), and gills (lamellae) on the underside of the cap. The term "mushroom" is also used to describe other gilled fungi, with or without stems, and is often used to refer to the fleshy fruiting bodies of some Ascomycota.
The term "toadstool" first appeared in 14th-century England, referring to a "stool" for toads and implying a poisonous fungus. Toadstools are generally considered inedible or toxic, while mushrooms are typically safe and edible. However, the distinction between the two is not always clear-cut, and they are often used interchangeably. Ancient folklore used the term "toadstool" to describe poisonous, large-capped mushrooms where toads were believed to rest.
Gilled mushrooms are often called "agarics" due to their similarity to Agaricus or their order Agaricales. Agarics have thin, bladelike gills on the undersurface of the cap, from which spores are shed. An example of an agaric is the honey mushroom (Armillaria mellea).
Identifying mushrooms and toadstools can be challenging, and it requires a basic understanding of their macroscopic structure. Molecular classification is the most accurate method, but it is not always practical for foragers. Instead, one must observe characteristics such as colour, size, shape, pores/gills/spines, spore colour, flesh colour, habitat, season, stem colour, ring, volva, root, mycelium, smell, taste, latex, warts, colour change, and growth medium.
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The word 'mushroom' may derive from the French word 'mousseron'
The origin of the word "mushroom" is a fascinating topic and subject to some debate among linguists and etymologists. One theory, as you mentioned, suggests that it may derive from the French word "mousseron." This theory holds that the word "mushroom" could have entered the English language during the Norman Conquest of England in the 11th century when French influence on English vocabulary was significant.
The French word "mousseron" refers to a specific type of wild mushroom, the St George's mushroom (*Calocybe gambosa*), which is commonly found in France and other parts of Europe. This mushroom gets its name from the fact that it often fruits around Saint George's Day, which falls on April 23. *Calocybe gambosa* is known for its delicious taste and is highly regarded in French cuisine.
The connection between "mousseron" and the English word "mushroom" likely stems from the similar appearance and ecological role of the two types of fungi. Both the St George's mushroom and the mushrooms commonly referred to in English belong to the order Agaricales, which includes many of the most recognizable mushroom-forming fungi. They share similar characteristics, such as a cap, gills, and a stem, and play important ecological roles in breaking down organic matter and contributing to nutrient cycles.
Over time, the word "mushroom" in English evolved to encompass a broader range of fungi beyond just those similar to the St George's mushroom. It became a general term for a wide variety of macroscopic fungal fruiting bodies, including those produced by basidiomycetes (club fungi) and ascomycetes (sac fungi). This evolution of the word reflects the expanding knowledge and understanding of mycology, the study of fungi, over the centuries.
While the exact path of the word "mushroom" into the English language may be difficult to pinpoint with absolute certainty, the influence of French cannot be overlooked. The theory connecting it to the French "mousseron" highlights the intriguing ways in which language evolves and adapts, influenced by historical events, cultural exchanges, and even the natural world around us. Such etymological explorations offer a window into the rich history and interconnectedness of languages.
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Frequently asked questions
No, 'mushroom' is not a compound word. It is derived from the French word 'mousseron', which refers to moss.
A mushroom is a type of fungus, specifically the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground.
The word 'mushroom' may have originated from the Middle English 'muscheron' or 'musseroun', which came from the Middle French 'mousseron', and ultimately from the Late Latin 'mussiriōn-'.
Mushrooms are also known as toadstools, especially poisonous ones. Other names include agarics, morels, puffballs, and stinkhorns.
Mushrooms grow from an underground network of thread-like strands called mycelium. The mycelium produces a new crop of mushrooms, or sporophores, each year during its fruiting season.

























