biology

Pogogyne tenuiflora

Pogogyne tenuiflora 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 Pogogyne tenuiflora rather than just read about it. In short: Pogogyne tenuiflora is an extinct species of annual plant in the mint family. Endemic to Guadalupe Island in the eastern Pacific, the Guadalupe mesa mint was only known from a single specimen collected by Edward Palmer in 1875.

Key takeaways

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

Reference excerpt

Pogogyne tenuiflora is an extinct species of annual plant in the mint family. Endemic to Guadalupe Island in the eastern Pacific, the Guadalupe mesa mint was only known from a single specimen collected by Edward Palmer in 1875. The species was described from Palmer's specimens by Asa Gray in 1876. Pogogyne tenuiflora is a small, aromatic annual herb, with inflorescences consisting of flowers in bracteate verticils forming dense terminal spikes. The corollas are blue-purple and tubular, with an erect, entire upper lip and a spreading 3-lobed lower lip. The corollas measure 10–14 mm (0.39–0.55 in) long. The lower pair of stamens measure 3–4 mm (0.12–0.16 in) long. The style is bearded for about 3 mm (0.12 in) below the branches. The two sterile upper anthers place this species within the Hedeomoides subgenus of Pogogyne, which was recognized as its own genus by John Isaac Briquet in 1896. During his visit, Palmer only saw this species very rarely among the sagebrush habitat on the eastern side of the island. By 1875, the feral goats, introduced years before by humans, had already started to devastate the environment of the island, leaving Palmer as the only person to document a number of species on the island that have also gone extinct, like the paleo-endemic monotypic olive relative Hesperelaea palmeri. Ira Wiggins thought P. tenuiflora to 'probably' be extinct in his 1980 flora of the Baja California peninsula (including Guadalupe Island). Reid Moran considered P. tenuiflora to be 'undoubtedly' extinct in his 1996 treatise on the flora of the island. The San Diego Natural History Museum considers this species as 'likely' extinct. A 2013 phylogenetic study of the genus considers the species to be presumed extinct.

See also Other extinctions of endemic species on Guadalupe Island:

Castilleja guadalupensis Hesperelaea Guadalupe caracara

References

Illustrations

Worked examples

Example 1 — a first encounter with Pogogyne tenuiflora

Start with the simplest possible case. Write down what Pogogyne tenuiflora 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 Pogogyne tenuiflora 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 Pogogyne tenuiflora 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 Pogogyne tenuiflora

In research: Pogogyne tenuiflora 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 Pogogyne tenuiflora 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: Pogogyne tenuiflora is common in secondary-school and first-year university syllabi. It links to neighbouring topics Endemic flora of Guadalupe Island, Extinct flora of Northern America, Plant extinctions since 1500, so understanding it makes those chapters shorter.
In everyday life: Look for Pogogyne tenuiflora 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 Pogogyne tenuiflora in 20 minutes

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

Frequently asked questions

What is Pogogyne tenuiflora in simple terms?

Why does Pogogyne tenuiflora 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 Pogogyne tenuiflora?

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 Pogogyne tenuiflora.