biology

Hygrophorus latitabundus

Hygrophorus latitabundus 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 Hygrophorus latitabundus rather than just read about it. In short: Hygrophorus latitabundus is a species of fungus in the genus Hygrophorus. It is distributed in European pine forests, and has a preference for calcareous soils.

Key takeaways

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

Reference excerpt

Hygrophorus latitabundus is a species of fungus in the genus Hygrophorus. It is distributed in European pine forests, and has a preference for calcareous soils. It fruits in autumn, producing large, edible mushrooms with slimy caps and stems.

Description Hygrophorus latitabundus fruiting bodies are large agarics. The cap is convex and slightly umbonate, coloured grey, brown and olivaceous with a darker, brownish centre. It is characteristically covered by a glutinous layer of slime, especially in wet weather conditions. The margin is inrolled. The cap diameter can reach 15 cm, and as it matures, it flattens out. The white gills are thick, distant and have an adnate to weakly decurrent attachment to the stem. The white stem is tall, fusiform, thick and robust. It is ornamented by numerous whitish flakes which are covered in a thick layer of slime. The flakes have a tendency to become brown. The flakes and slime extend from the base of the stem to the level of the margin, where they stop abruptly, creating a ring-like zone. Above this, the stem is white and visibly thinner. The stem is up to 15 cm tall and 2–4 cm thick. The white flesh is thick and firm, with a fungal smell and pleasant taste. An identification aid is the chemical reaction of the stem flesh when exposed to ammonia solution. In this species, it turns orange-rust and then brown in the base and yellow-ochre at the top.

Edibility Hygrophorus latitabundus is reported to be a good, edible fungus. It is collected and marketed for consumption in Spain, particularly in the Catalan region, where it is known as llenega negra.

Habitat and distribution

Hygrophorus latitabundus is found in coniferous forests, forming ectomycorrhizal relationships exclusively with pines (Pinus). The fungus fruits in autumn and shows a preference for calcareous soils. Its occurrence is rare, though it is abundant there where it is established. Its distribution encompasses southern and central Europe, including Austria, Germany, France, Italy, Slovenia and Spain. It is also known to occur in the Republic of Macedonia, Greece and Turkey.

Similar species Among the many species of the genus Hygrophorus, there are some which can be mistaken for Hygrophorus latitabundus.

The fruiting body of H. persoonii has a similar appearance, but the species is found only in deciduous forests with oak (Quercus) and beech (Fagus). Its flesh turns greenish with ammonia solution. H. olivaceoalbus is a less robust species which often bears a dark, rough-banded stem ornamentation, and occurs with spruce (Picea), frequently in moss. Its stem flesh discolours to orange-red with ammonia solution.

Illustrations

Worked examples

Example 1 — a first encounter with Hygrophorus latitabundus

Start with the simplest possible case. Write down what Hygrophorus latitabundus 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 Hygrophorus latitabundus 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 Hygrophorus latitabundus 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 Hygrophorus latitabundus

In research: Hygrophorus latitabundus 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 Hygrophorus latitabundus 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: Hygrophorus latitabundus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Edible fungi, Fungi described in 1899, Fungi of Europe, so understanding it makes those chapters shorter.
In everyday life: Look for Hygrophorus latitabundus 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 Hygrophorus latitabundus in 20 minutes

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

Frequently asked questions

What is Hygrophorus latitabundus in simple terms?

Hygrophorus latitabundus is a species of fungus in the genus Hygrophorus. It is distributed in European pine forests, and has a preference for calcareous soils.

Why does Hygrophorus latitabundus 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 Hygrophorus latitabundus?

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 Hygrophorus latitabundus.