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Porfiry Krylov

Porfiry Krylov is a astronomy 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 Porfiry Krylov rather than just read about it. In short: Porfiry Krylov (Порфирий Никитич Крылов, 13 August 1850, village of Sagaiskoe (Сагайское), Minusinsk Hollow [now part of Krasnoyarsk Krai] – 27 December 1931, Tomsk) was a Russian botanist, known for his plant collecting expeditions. Biography Porfiry Krylov was born into a family of Old Believers.

Porfiry Krylov — main illustration
Porfiry Krylov — illustration

Key takeaways

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

Reference excerpt

Porfiry Krylov (Порфирий Никитич Крылов, 13 August 1850, village of Sagaiskoe (Сагайское), Minusinsk Hollow [now part of Krasnoyarsk Krai] – 27 December 1931, Tomsk) was a Russian botanist, known for his plant collecting expeditions.

Biography Porfiry Krylov was born into a family of Old Believers. His father was Nikita Kondratyevich Krylov (Никита Кондратьевич Крылов, 1792–1873), Perm merchant of the first guild, hereditary honorary citizen, and commerce advisor. In early childhood, Porfiry Krylov with his family moved to Perm, where at the age of 12 he began secondary school at Perm's gymnasium. After the fourth year, during the fifth year of secondary school, he was expelled from the gymnasium due to failure to appear for an exam and received a certificate of completion of four classes of the gymnasium with grades: “good” and “sufficient”, including “excellent” in Latin and “mediocre” in German. In 1868 he became an apprentice in one of the Perm pharmacies. He was interested in chemistry, medicinal plants, and botany. In 1871 Krylov moved to Kazan, where in 1873 he entered a two-year course at the Imperial Kazan University to receive the title of pharmacist. After graduating with honors, he joined the Society of Naturalists of the Imperial Kazan University and worked with the society's herbarium cabinets. In the proceedings of the Society of Naturalists of the Imperial Kazan University, he published, at the age of 23, his first scientific work — which consisted of notes on a raspberry species in the genus Rubus. He became an adjunct laboratory assistant in the department of analytical chemistry at the Imperial Kazan University and soon moved to that university's botanical garden with an academic appointment as a botanist and scientific gardener. During this time he traveled eleven times to the Perm Governorate and the Ural Mountains and published 15 works on the local flora (including medicinal plants).

The trustee of the Western Siberia educational district and founder of Tomsk State University, Vasily Markovich Florinsky (Васи́лий Ма́ркович Флори́нский, 1834–1899) invited Krylov to create for Tomsk State University a botanical garden (the first beyond the Urals), as well as a herbarium. In July 1885, Krylov came to Tomsk and brought with him 700 pots of orangery plants for the botanical garden. He immediately began organizing the herbarium in the form of a botanical museum. Construction of the main orangery soon began and 14 greenhouses were prepared. A herb garden with 200 species, an arboretum, a medicinal plant garden and an orchard were created. He created a park in front of the main university building, the so-called university grove (университетская роща). In 1888 Krylov founded the city park (Городской сад) in Tomsk. From the 1890s onwards, in order to complete the botanical garden, he made several trips to the Altai Mountains, to Lake Teletskoye, to Western Sayan, to Western Siberia (including Baraba Steppe, Kulunda Steppe ), and to Kazakhstan. He was the founder of tree nurseries in order to plant trees in Tomsk, Sudzhenka and Isilkul to protect the Trans-Siberian Railway against snow drifts. In 1901 Krylov published the first volume of his major work on the flora of Altai and the Tomsk Governorate. In 1914 the Imperial Academy of Sciences appointed him to the Botanical Museum of the Academy of Sciences in Petrograd. In 1915 the Permian entrepreneur Nikolai Vasilievich Meshkov (Николай Васильевич Мешков) and the botanist Pavel Vasilievich Syuzev (Павел Васильевич Сюзев) prepared reports for the creation in Perm of a public garden — but this project remained unrealized as a result of the October Revolution and the Russian Civil War. In 1916 Krylov traveled to the Caucasus. After the February Revolution and the October Revolution, he returned in 1917 to Tomsk, where he was appointed Professor at Tomsk University. His students included Viktor Vladimirovich Reverdatto (Виктор Владимирович Ревердатто), Lidia Palladievna Sergievskaya (Лидия Палладиевна Сергиевская), and Boris Konstantinovich Schischkin.

In 1918 Krylov began his second major work on Western Siberian flora — the work was completed by his students after his death. In 1925 he was elected a corresponding member of the All-Ukrainian Academy of Sciences and in 1929 a corresponding member of the Academy of Sciences of the USSR. On the basis of his work, the geobotanical maps of the Krasnoyarsk Region were created in the 1930s. In 1931, Krylov was an advisor to an expedition conducted by the Novosibirsk branch of the Institute of Chemistry and Pharmacy to study in Transbaikalia medicinal plants and plants with valuable essential oils. To do this, he undertook a trip with his assistant L. P. Sergiyevskaya to the Aga Steppe — this was Krylov's last botanical trip. Uncontrollably galloping horses pulling the carriage in which Krylov and Sergiyevskaya were traveling caused a severe accident. The carriage overturned, and both scientists were badly injured and had to return to Tomsk. Krylov's health worsened and he died in December 1931. During his career, he organized 36 botanical expeditions, 24 of then made within Russian territory. Krylov scientifically described 12 new species and many taxa within species.

Awards and honors honorary doctorate from the University of Kazan (1909) Baer Prize of the Russian Academy of Sciences (1914)

References

External links Media related to Porfiry Krylov at Wikimedia Commons

Illustrations

Porfiry Krylov: Porfiry Nikitich Krylov
Porfiry Nikitich Krylov
Porfiry Krylov: Herbarium (Botanical Museum), Tomsk 1890.
Herbarium (Botanical Museum), Tomsk 1890.
Porfiry Krylov: Orangery (south side), Tomsk 1890.
Orangery (south side), Tomsk 1890.
Porfiry Krylov: Interior view of the tropical department of the orangery, Tomsk 1890.
Interior view of the tropical department of the orangery, Tomsk 1890.
Porfiry Krylov: Krylov and Sergievskaya's grave monument in the Tomsk University Grove
Krylov and Sergievskaya's grave monument in the Tomsk University Grove

Worked examples

Example 1 — a first encounter with Porfiry Krylov

Start with the simplest possible case. Write down what Porfiry Krylov claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Porfiry Krylov 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 Porfiry Krylov 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 Porfiry Krylov

In research
Porfiry Krylov appears in astronomy 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 Porfiry Krylov 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
Porfiry Krylov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1850 births, 1931 deaths, 19th-century botanists from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life
Look for Porfiry Krylov 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 Porfiry Krylov in 20 minutes

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

Frequently asked questions

What is Porfiry Krylov in simple terms?

Porfiry Krylov (Порфирий Никитич Крылов, 13 August 1850, village of Sagaiskoe (Сагайское), Minusinsk Hollow [now part of Krasnoyarsk Krai] – 27 December 1931, Tomsk) was a Russian botanist, known for his plant collecting expeditions. Biography Porfiry Krylov was born into a family of Old Believers.

Why does Porfiry Krylov matter?

Because it connects several astronomy 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 Porfiry Krylov?

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 Porfiry Krylov.

Tags

  • 1850 births
  • 1931 deaths
  • 19th-century botanists from the Russian Empire
  • Academic staff of Tomsk State University
  • Kazan Federal University alumni
  • Soviet botanists

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