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Theodor von Heldreich

Theodor von Heldreich 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 Theodor von Heldreich rather than just read about it. In short: Theodor Heinrich Hermann von Heldreich (3 March 1822 – 7 September 1902) was a German botanist born in Dresden. In 1851, he settled in Greece for the rest of his life.

Theodor von Heldreich — main illustration
Theodor von Heldreich — illustration

Key takeaways

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

Reference excerpt

Theodor Heinrich Hermann von Heldreich (3 March 1822 – 7 September 1902) was a German botanist born in Dresden. In 1851, he settled in Greece for the rest of his life. He carried out botanical experiments in the country. He published thirteen volumes of the "Herbarium Graecum Normale" between 1856 and 1896. In Greece, he served as director of the National Garden of Athens for over 50 years. He was also director of the natural history museum of Athens. Heldreich was good friends with Charles Darwin.

Biography Scion of an old aristocratic family, he was the son of Conrad Friedrich Robert Heldreich and Amalia Charlotte Humbold. He initially studied philosophy. A love of botany, however, took him to Montpellier in 1837 to study under Professor Michel Félix Dunal. He later completed his botanical education in Geneva (1838–1842). In 1841, he was honoured by botanist Pierre Edmond Boissier, who named a genus of plants (in family Brassicaceae) from Palestine and Turkey Heldreichia. His first botanical expedition was to Sicily, after which he published his first work "Tre nuove specie di piante scoverte nella Sicilia". From 1843 to 1848, he travelled extensively throughout Italy, Greece, Asia Minor and Crete. During 1849 and 1850 he lived in England, and then for a year in Paris where he served as curator of P. Barker Webb's herbarium. In 1851, he settled permanently in Greece, where he carried out rigorous botanical investigations. He started to edit at least eight exsiccata-like series, among them publishing sixteen volumes of the "Herbarium Graecum Normale" between 1856 and 1900 and distributing specimens collected by Giovanni Battista Samaritani in Egypt under the title Samaritani delectus plantarum Aegypti inferioris curante Th. de Heldreich. In Greece he served as director of the court garden for over 50 years, as well as director of the natural history museum, where in addition to the department of botany he helped create departments of zoology and paleontology. It was during this period, in 1862 in Athens, Heldreich met John Stuart Mill who was travelling through Greece with his stepdaughter, Helen Taylor (feminist), collecting specimens of the Greek flora. Heldreich and Mill discussed plant identifications and exchanged collections. Their meeting is documented in John Stuart Mill's botanical notebooks lodged in the Archives of the London School of Economics. A portion of the John Stuart Mill Herbarium, believed to be in the vicinity of 4000 specimens, is housed at the National Herbarium of Victoria (MEL) and within this portion are contained a set of Heldreich specimens, primarily from the Attica and Crete regions of Greece. Heldreich discovered seven new genera and 700 new species of plants, 70 of which bear his name. Between 1880 and 1883 he taught natural history to the children of the royal family. In 1855 Theodor von Heldreich married Sofia, daughter of I. Katakouzinos and granddaughter of Greek scholar and patriot, Konstantinos Koumas. With Sofia he had two daughters, Karolina, who married Gangolf von Kieseritzky, Curator of Antiquities at the Imperial Hermitage Museum in St. Petersburg, and Ioanna, who married Mark Mindler, attorney and head of the stenographer's office of the Greek Parliament. Theodor von Heldreich was a good friend of Charles Darwin. He died in Athens on 7 September 1902. His grave can still be found in the First Cemetery of Athens.

Standard author abbreviation The standard author abbreviation Heldr. is used to indicate this person as the author when citing a botanical name.

Published works In addition to a great number of monographs published in reputable journals in Greece and abroad, he also published scholarly works in Greek, Latin, German, Italian and French, including:

♦ "Ueber Griechische Arbutus Arten" (1844) ♦ "Catalogus Plantarum Hispanicarum in Provincia Giennensi" (1850) ♦ "Ueber die neue arkadische Tanne" (1860) ♦ "Descriptio specierum novarum" (1860) ♦ "Zur Kenntniss der griechischen Tannen" (1861) ♦ "Ueber Pflanzen der griechischen, insbesondere der Attischen Flora, die als Zierpflanzen empfehlenswerthsind" (1861) ♦ "Tulipa Orphanidea Boiss und die Tulpen Griechenlands" (1862) ♦ "Die Nutzpflanzen Griechenlands" with particular reference to modern Greek and Pelasgic common names (Athens 1862) ♦ "Sertulum plantarum novarum vel. minus cognitarum Florae Hellenicae" (Florence 1876) ♦ "Zwei neue Pflanzenarten der Jonischen Inseln" (Vienna, 1877) ♦ "Ueber die Liliaceen-Gattung Leopoldia und ihre Arten" (Moscow 1878) ♦ "La Faune de la Grèce" (Athens 1878) ♦ "Der Asphodelos, ein griechisches Pflanzenbild" (Berlin 1881) ♦ "Flore de l'ile de Céphalonie" (Lausanne 1883) ♦ "On a Botanical Excursion in Attica" (Athens 1883) ♦ "Bericht über die botanischen Ergebaisse einer Bereisung Thessaliens" (Berlin 1883) ♦ "On the Hyoscyamus" (Athens 1884) ♦ "On the Hop (Humulus lupulus) and its cultivation in Greece" (Athens 1885) ♦ "Note sur une nouvelle espèce de Centaurea de l'ile de Crète" (Paris 1890) ♦ "The Flora of Mt. Parnassus" (Athens 1890) ♦ "Homeric Flora" (Athens 1896) ♦ "Study on the Pellitory (Parietaria), a Medicinal Herb of the Ancients" (Athens 1899) ♦ "The Flora of Aegina" (Athens, 1898) ♦ "On the Strychnos of the Ancients" (Athens, 1899) ♦ "The Flora of Thera" (Athens 1899) ♦ "On the Plants Providing Greek Tea" (Athens 1900) ♦ "Botany in Relation to Mathematics" (Athens 1901) ♦ "Contributions to the Compilation of a Flora of the Cyclades" (Athens 1901) ♦ "Fungi in the Economy of Nature" (Athens 1901). In 1880, he published a romance entitled "Mussinitza", in 1887 "A Sketch on the Death of Professor of Botany and Poet Theodoros G. Orphanides", in 1887 "The Flower, from a Historical, Natural and Aesthetic Viewpoint", and in 1889 "The Lily, Examined from a Fictional and Historical Perspective". Heldrich also published an exsiccata-like specimen series under the title "Reliquiae Orphanideae curante Th. de Heldreich anno 188. emissae".

… excerpt ends here. Continue reading the full article.

Illustrations

Theodor von Heldreich illustration

Worked examples

Example 1 — a first encounter with Theodor von Heldreich

Start with the simplest possible case. Write down what Theodor von Heldreich 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 Theodor von Heldreich 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 Theodor von Heldreich 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 Theodor von Heldreich

In research
Theodor von Heldreich 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 Theodor von Heldreich 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
Theodor von Heldreich is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1822 births, 1902 deaths, 19th-century German botanists, so understanding it makes those chapters shorter.
In everyday life
Look for Theodor von Heldreich 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 Theodor von Heldreich in 20 minutes

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

Frequently asked questions

What is Theodor von Heldreich in simple terms?

Theodor Heinrich Hermann von Heldreich (3 March 1822 – 7 September 1902) was a German botanist born in Dresden. In 1851, he settled in Greece for the rest of his life.

Why does Theodor von Heldreich 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 Theodor von Heldreich?

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 Theodor von Heldreich.

Tags

  • 1822 births
  • 1902 deaths
  • 19th-century German botanists
  • 19th-century Greek educators
  • 19th-century Greek scientists
  • Greek botanists
  • Greek people of German descent
  • John Stuart Mill
  • Scientists from Dresden
  • University of Montpellier alumni

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