biology

Gymnopilus viridans

Gymnopilus viridans 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 Gymnopilus viridans rather than just read about it. In short: Gymnopilus viridans is a mushroom in the family Hymenogastraceae. It contains the hallucinogens psilocybin and psilocin.

Key takeaways

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

Reference excerpt

Gymnopilus viridans is a mushroom in the family Hymenogastraceae. It contains the hallucinogens psilocybin and psilocin. It is a rarely documented species, the last known collection being from the US state of Washington in 1912.

Description Pileus: — 8 cm, thick, convex with a large umbo, ochraceous, dry, with conspicuous light reddish brown scales that are sparse but become denser toward the center; flesh firm, becoming green-spotted where handled. Gills: Adnate, broad, crowded, edges undulate, dingy brown to rusty brown with age. Spore print: Rusty brown. Stipe: — 6 cm in height, 2 cm in diameter, enlarging below, solid, firm, concolorous with the cap. Microscopic features: Spores 7 x 8.5 x 4 — 5 μm ellipsoid, not dextrinoid, minutely verruculose, obliquely pointed at one end, no germ pore. Pleurocystidia absent, Cheilocystidia 20 — 26 x 5 — 7 μm, caulocystidia 35 — 43 x 4 — 7 μm, clamp connections present.

Habitat and formation Gymnopilus viridans is found growing cespitose on coniferous wood from June to November.

References

Murrill, William (1912). "Gymnopilus viridans". Mycologia. 4: 257. doi:10.2307/3753448. JSTOR 3753448. ("For the benefit of those using Saccardo's nomenclature, the following new species in the above article are recombined, as follows: Gymnopilus viridans = Flammula viridans" p. 262) Hesler, Mycologia Memoir No. 3 1969, North American Species of Gymnopilus

Illustrations

Worked examples

Example 1 — a first encounter with Gymnopilus viridans

Start with the simplest possible case. Write down what Gymnopilus viridans 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 Gymnopilus viridans 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 Gymnopilus viridans 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 Gymnopilus viridans

In research: Gymnopilus viridans 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 Gymnopilus viridans 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: Gymnopilus viridans is common in secondary-school and first-year university syllabi. It links to neighbouring topics Entheogens, Fungi of North America, Fungus species, so understanding it makes those chapters shorter.
In everyday life: Look for Gymnopilus viridans 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 Gymnopilus viridans in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Gymnopilus viridans 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 Gymnopilus viridans out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Gymnopilus viridans in simple terms?

Gymnopilus viridans is a mushroom in the family Hymenogastraceae. It contains the hallucinogens psilocybin and psilocin.

Why does Gymnopilus viridans 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 Gymnopilus viridans?

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 Gymnopilus viridans.