biology

Ulmus wallichiana var. tomentosa

Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa rather than just read about it. In short: Ulmus wallichiana var. tomentosa was identified by Melville & Heybroek after the latter's expedition to the Himalaya in 1960. Description The tree is very similar to Ulmus wallichiana subsp. wallichiana, but distinguished by young stems and lower surfaces of leaves densely white-tomentose; the samarae are uniformly hirsute.

Key takeaways

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

Reference excerpt

Ulmus wallichiana var. tomentosa was identified by Melville & Heybroek after the latter's expedition to the Himalaya in 1960.

Description The tree is very similar to Ulmus wallichiana subsp. wallichiana, but distinguished by young stems and lower surfaces of leaves densely white-tomentose; the samarae are uniformly hirsute.

Pests and diseases The species has a high resistance to the fungus Ophiostoma himal-ulmi endemic to the Himalaya and the cause of Dutch elm disease there.

Cultivation The tree is not known to be in cultivation in the West.

References

Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. Kew Bulletin, Vol. 26 (1). Kew, London.

External links "Ulmus wallichiana var. tomentosa; leaves and samarae; Thomson specimen, Kishtwar district, Kashmir, India (1867) K000852683". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.

Worked examples

Example 1 — a first encounter with Ulmus wallichiana var. tomentosa

Start with the simplest possible case. Write down what Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa

In research: Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa 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: Ulmus wallichiana var. tomentosa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Elm species and varieties, Flora of West Himalaya, Trees of Pakistan, so understanding it makes those chapters shorter.
In everyday life: Look for Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa in 20 minutes

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

Frequently asked questions

What is Ulmus wallichiana var. tomentosa in simple terms?

Ulmus wallichiana var. tomentosa was identified by Melville & Heybroek after the latter's expedition to the Himalaya in 1960. Description The tree is very similar to Ulmus wallichiana subsp. wallichiana, but distinguished by young stems and lower surfaces of leaves densely white-tomentose; the sama…

Why does Ulmus wallichiana var. tomentosa 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 Ulmus wallichiana var. tomentosa?

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 Ulmus wallichiana var. tomentosa.