biology

Tricholoma sulphureum

Tricholoma sulphureum is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tricholoma sulphureum rather than just read about it. In short: Tricholoma sulphureum, also known as the stinker, sulphur knight or gas agaric, is a species of fungus. The mushroom has a distinctive bright yellow colour and an unusual smell likened to coal gas.

Key takeaways

Tricholoma sulphureum belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Tricholoma sulphureum to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Tricholoma sulphureum from memory before moving on to harder problems.

Reference excerpt

Tricholoma sulphureum, also known as the stinker, sulphur knight or gas agaric, is a species of fungus. The mushroom has a distinctive bright yellow colour and an unusual smell likened to coal gas. It occurs in deciduous woodlands in Europe from spring to autumn. It is inedible or mildly poisonous.

Taxonomy Tricholoma sulphureum was first described in 1784 by the French botanist Pierre Bulliard and given the name Agaricus sulphureus, before being placed in the genus Tricholoma by German mycologist Paul Kummer in 1871. The specific epithet sulfǔrěus derived from the Latin 'of or pertaining to sulfur'. It belongs to a complex of similar foul-smelling species such as the very similar T. inamoenum. Another related species, T. bufonium, may be an intraspecific variant.

Description The mushroom is sulphur yellow in colour. It has a convex cap, sometimes brownish near the center with a vague umbo up to 8 cm (3 in) across. The gills are adnexed or notched, thick and spaced. The stem is up to 10 cmlong. The spore print is white. The flesh is thin and has a poor odour. The smell, caused by the chemical skatole, is enough to distinguish it from other yellow fungi. John Ramsbottom reports that it has a complex smell that has been likened variously to Jasmine, Narcissus, Hyacinth, Hemerocallis flava, Lilac, Tagetes, decayed hemp or coal gas, as well as described as nauseating or foetid. The taste is bitter.

Similar species It could be confused with the darker T. equestre, which has a sticky cap, white flesh, thin crowded gills, and a mealy smell.

Distribution and habitat Tricholoma sulphureum is found in deciduous woods, particularly beech, and can occur anytime from spring until autumn. It is found across Europe and has been confirmed as far east as China. It is also distributed in North America, where it grows also with conifers. It is commonly known as the "Stinker" or "Sulfur Trich". In Turkey, it is considered critically endangered.

Toxicity The fungus is usually classified as inedible and is suspected of being poisonous. Reported symptoms are mostly gastrointestinal, some neurological.

See also List of North American Tricholoma List of Tricholoma species

References

Illustrations

Worked examples

Example 1 — a first encounter with Tricholoma sulphureum

Start with the simplest possible case. Write down what Tricholoma sulphureum claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tricholoma sulphureum before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tricholoma sulphureum ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tricholoma sulphureum

In research: Tricholoma sulphureum appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Tricholoma sulphureum in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Tricholoma sulphureum is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fungi described in 1784, Fungi of Asia, Fungi of Europe, so understanding it makes those chapters shorter.
In everyday life: Look for Tricholoma sulphureum outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Tricholoma sulphureum in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tricholoma sulphureum means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Tricholoma sulphureum out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tricholoma sulphureum in simple terms?

Tricholoma sulphureum, also known as the stinker, sulphur knight or gas agaric, is a species of fungus. The mushroom has a distinctive bright yellow colour and an unusual smell likened to coal gas.

Why does Tricholoma sulphureum matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tricholoma sulphureum?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tricholoma sulphureum.