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Scientist:

Carolus Linnaeus

Carolus Linnaeus
Library of Congress

[b. Råshult, Sweden, May 23, 1707, d. Uppsala, Sweden, January 10, 1778]

The 1735 publication of Systema naturae established the fame of Linnaeus with an organized classification structure for all living things. The binomial system of nomenclature, now the basis for naming and classifying all organisms, was first introduced by Linnaeus in 1749. In his Species plantarum in 1753 Linnaeus attempted to name and describe all known plants, calling each kind a species and assigning to each a two-part Greek or Latin name consisting of the genus (group) name followed by the species name. Many of his names of flowering plants survive with little if any change -- for example, Quercus alba for white oak. The 1758 edition of Systema naturae extended binomial classification to animals.


 
 
Biography: Carl Linnaeus

The Swedish naturalist Carl Linnaeus (1707-1778) established the binomial system of biological nomenclature, formalized biological classification, and gave the first organization to ecology.

Carl Linnaeus was born on May 23, 1707, in Ra°shult, the eldest of five children. Two years after his birth his father became the Lutheran minister at Stenbrohult. There young Carl had his own garden, which, he later remarked, "inflamed my soul with an unquenchable love of plants."

In 1716 Linnaeus went to the grammar school in nearby Växjö. He studied Latin, religion, mathematics, and science, but his interest in plants tended to interfere with his studies. A favorite book was Aristotle's Historia animalium, which his father had given him. His mother hoped he would enter the ministry, but he showed no interest in that career. Johan Rothman, a master at the high school, encouraged Linnaeus's interests in science and suggested that he study medicine. The father reluctantly agreed, and Rothman tutored Linnaeus in physiology and botany for a year.

In 1727 Linnaeus entered the University of Lund. The science and medical instruction was very weak, and after a year he transferred to Uppsala University, where he found that the two medical professors were old and seldom lectured. Fortunately, he soon attracted the interest of Olof Celsius, a theology professor who was interested in the plants of Sweden. Celsius gave him free room and board and became his mentor.

The most important contemporary development in botany was the study of the sexuality of plants. Linnaeus had learned of this discovery while at Växjö, but it was not generally known in Sweden. He wrote an essay on the subject, which Celsius showed to one of the professors of medicine, Olof Rudbeck. Rudbeck was so impressed with Linnaeus that he appointed him lecturer in botany and tutor of his sons.

His Travels

In 1732 Linnaeus received a grant from the Uppsala Scientific Society for a trip to Lapland. In 5 months he gained valuable knowledge of the Lapps and the natural resources of the country. The success of this trip led to invitations from the government at various times to make other trips to survey the resources of Sweden. On one of his journeys, through the province of Dalarna in 1734, he met Sara Lisa Moraea, to whom he became engaged.

Linnaeus needed a medical degree to become professionally established. At some European universities it could be earned by satisfactorily completing examinations and defending a thesis. In 1735 Linnaeus traveled to Holland, and after a week at the University of Harderwijk he took the examinations, defended his thesis on the cause of intermittent fever, and received his degree. He remained away from Sweden for 3 years, spending most of his time in Holland but also traveling in Germany, France, and England, meeting leading scientists as he went. He had brought with him a number of botanical manuscripts, and these won the admiration of the leading naturalists and the wealthy banker George Clifford.

These men provided Linnaeus with work and assisted in the publication of his manuscripts. The years in Holland were the most productive of his life: he published his Systema naturae, Bibliotheca botanica, Fundamenta botanica, Critica botanica, Flora Lapponica, Methodus sexualis, Genera plantarum, Classes plantarum, Hortus Cliffortianus, and lesser works. With understandable pride he concluded that in 3 years he had "written more, discovered more, and made a greater reform in botany than anybody before had done in an entire lifetime."

The Professor

Linnaeus returned to practice medicine in Stockholm. He was appointed physician to the Admiralty and soon had the best medical practice in Stockholm. In 1739 he married Sara Moraea; they had two sons and four daughters. Linnaeus became professor of botany at Uppsala University in 1741.

As a professor, Linnaeus was immensely successful. He had a genius for organization which he applied to both science and science education. His popularity with students was also based upon his attractive personality and his concern for their success. He taught botany, zoology, natural history, pharmacy, dietetics, and mineralogy. There were 186 students who defended these under his supervision. It was the custom for the adviser to write much, if not all, of the dissertation, and those which his students defended contained some of his important ideas in ecology and natural history. These theses were published separately and then collected into a periodical entitled Amoenitates academicae (1749-1790).

Linnaeus was not without detractors, some sincere, but many merely jealous. However, the love of his students and the value of his work ensured both his widespread influence and the receipt of many honors. He was appointed chief royal physician in 1747 and was knighted in 1758; he then took the name Carl von Linné. He retired in 1776 and was permitted to appoint as his successor his son Carl. Linnaeus died in Uppsala on Jan. 10, 1778.

Binomial Nomenclature and Classification

Linnaeus is most widely known for having introduced efficient procedures for naming and classifying plants and animals at a time when new species were being rapidly discovered by explorers. Before the insights of evolutionary theory provided a rationale for classification and nomenclature, the criteria used were arbitrarily chosen according to similarities in morphology, habitat, and man's uses of the species. In Linnaeus's day the problems of classification were most acutely felt in relation to flowering plants. Naturalists agreed that morphology was the most natural criterion, but in practice it was difficult to know which groups were most similar.

Linnaeus realized that new plants were being discovered faster than their morphological relationships could be established, and he decided to abandon for a while the attempt to achieve a natural classification. He devised a simple numerical classification based upon the number of floral parts. This system was so useful that it remained popular into the 19th century.

Gradually Linnaeus also developed a consistent system of names, in which each species of plant and animal had a genus name followed by a specific name: for example, Plantago virginica and Plantago lanceolata were the names of two species of plantain. Because he was the first to achieve a consistent and efficient system of nomenclature, botanists agreed in 1905 to accept his Species plantarum (2 vols., 1753) and zoologists agreed to accept the tenth edition of his Systema naturae (1758) as the official starting points for scientific names of plants and animals.

Ecology as the Economy of Nature

The subject of ecology as a distinct area of investigation was first outlined by Linnaeus in a thesis entitled Specimen academicum de oeconomia naturae, which was defended by one of his students in 1749. Linnaeus organized ecology around the balance of nature concept, which he named the "economy of nature." He emphasized the interrelationships in nature and was one of the first naturalists to describe food chains. He also studied plant succession, the diversity of habitat requirements among species, and the selective feeding habits of insects and hoofed animals. He was strongly interested in the distribution of species and studied their different means of dispersal. He urged the application of biological knowledge not only in medicine but also in agriculture, for he believed that the effective combating of agricultural pests must be based upon a thorough knowledge of their life histories.

Further Reading

Linnaeus, an extremely productive author, wrote in Latin and Swedish; some of his writings have been translated into English. A good introduction to his life and writings is The Compleat Naturalist: A Life of Linnaeus, by Wilfrid Blunt with the assistance of William T. Stearn (1971). The most thorough biography of Linnaeus is a two-volume study in Swedish by Theodor Magnus Fries, which was abridged and modified for English publication by Benjamin Daydon Jackson, Linnaeus (afterwards Carl von Linné): The Story of His Life (1923). Two shorter and more recent biographies are Knut Hjalmar Hagberg, Carl Linnaeus (trans. 1953), and Norah Gourlie, The Prince of Botanists: Carl Linnaeus (1953). The contributions of Linnaeus and his students are discussed by Robert E. Fries in A Short History of Botany in Sweden (1950).

 

Carolus Linnaeus, detail of a portrait by Alexander Roslin, 1775; in the Svenska …
(click to enlarge)
Carolus Linnaeus, detail of a portrait by Alexander Roslin, 1775; in the Svenska … (credit: Courtesy of the Svenska Porträttarkivet, Stockholm)
(born May 23, 1707, Råshult, Smâland, Swed. — died Jan. 10, 1778, Uppsala) Swedish botanist and explorer. He studied botany at Uppsala university and explored Swedish Lapland before going to Holland to study medicine (1735). There he became the first to develop principles for defining genera and species of organisms and to create a uniform system for naming them, binomial nomenclature. Linnaeus's system was based mainly on flower parts, which tend to remain unchanged during evolution. Though artificial, such a system was valuable in that it enabled students to place a plant rapidly in a named category. Linnaeus not only systematized the plant and animal kingdoms, but he also classified the mineral kingdom and wrote a study of the diseases known in his day. His manuscripts, herbarium, and collections are preserved by London's Linnaean Society. His works include Systema Naturae (1735), Fundamenta Botanica (1736), and Species Plantarum (1753).

For more information on Carolus Linnaeus, visit Britannica.com.

 
Columbia Encyclopedia: Linnaeus, Carolus
(kärō'ləs lĭnā'əs) , 1707–78, Swedish botanist and taxonomist, considered the founder of the binomial system of nomenclature and the originator of modern scientific classification of plants and animals. He studied botany and medicine and taught both at Uppsala. In Systema naturae (1735) he presented his classification of plants, animals, and minerals, and in Genera plantarum (1737) he explained his system for classifying plants largely on the basis of the number of stamens and pistils in the flower. Despite the artificiality of some of his premises, the Linnaean system has remained the basis of modern taxonomy. Species plantarum (2 vol., 1753) described plants in terms of genera and species, and the 10th edition (1758) of Systema naturae applied this system to animals as well, classifying 4,400 species of animals and 7,700 species of plants. These two works are therefore considered the basis of binomial nomenclature, although the early herbalists had used a binomial system before Linnaeus. Among his more than 180 works were several books on the flora of Lapland and Sweden and the Genera morborum (1763), a classification of diseases. After Linnaeus' death his priceless botanical collection was removed to England (see herbarium). Linnaeus was also known as Karl (or Carl) Linné (of which Carolus Linnaeus is a Latinized version); when he was ennobled in 1761 he formally adopted the name Karl von Linné.

Bibliography

See T. Frangsmyr et al., ed., Linnaeus (1983); J. Weinstock, Contemporary Perspectives on Linneaus (1985).

 
History 1450-1789: Carl Linnaeus

Linnaeus, Carl (Carl von Linné; 1707–1778; ennobled 1761), Swedish naturalist and explorer. Linnaeus was born on 23 May 1707. His father was a curator in Råshult, a small parish in Småland (southern Sweden). After attending school in nearby Växjö, he studied medicine at the universities of Lund (1727) and Uppsala (1728–1732). Coming from a low-income family, he could only afford to attend a few lectures, but patronage from Olaus Rudbeck, Jr. (1660–1740) and Olof Celsius (1670–1756) at Uppsala University, and subsidies he received from teaching botany (1730–1732), allowed him to study natural history on his own. In 1732 the Uppsala Academy of Sciences sent Linnaeus to Lapland to do research. After his return, he gave private lectures in mineral assaying, and made another research trip to Dalecarlia (a region in central Sweden) in 1734. At this early stage, the foundation for all of his later work was laid down in manuscripts. Occasion for their publication would come when Linnaeus went to Holland in 1735 to acquire a medical degree. This journey was financed by the governor of Dalecarlia, the father of Sara Elisabeth Moraea, who was promised to Linnaeus.

Skillfully seeking the patronage of leading Dutch naturalists like Jan Fredrik Gronovius (1690–1762), senator of Leiden, and Herman Boerhaave (1668–1738), only a few months after his arrival Linnaeus successfully published his first work, the Systema Naturae (The system of nature), a folio volume of only eleven pages that presented a classification of the three kingdoms of nature. Success was immediate, and there followed a whole series of further publications, among them the Fundamenta Botanica (The foundations of botany, 1735) and the Genera Plantarum (Genera of plants, 1737). Linnaeus extended his stay in Holland until 1738 to catalog the extensive botanical collections of George Clifford, former director of the Dutch East India Company, who also paid him for two short trips to Paris and Oxford. On his return to Sweden in 1738, he married Sara Elisabeth and settled in Stockholm as a physician. He was among those who founded the Royal Academy of Sciences in 1739.

In 1741 Linnaeus accepted the chair of medicine and botany at Uppsala University. His career was characterized by two different aspects: On the one hand, he used the contacts he had made while in Holland to establish an international network of correspondents, including such leading naturalists as Albrecht von Haller (1708–1777) and Antoine-Laurent de Jussieu (1748–1836), that would supply him with seeds and specimens from all over the world. Incorporating this material into the botanical garden at Uppsala, Linnaeus created a continuously growing empirical basis for revised and enlarged editions of his major taxonomic works. There were twelve authorized editions of the Systema Naturae, as well as numerous pirated editions, translations, and popular versions that appeared in Europe.

On the other hand, Linnaeus actively supported the cameralist theory that a nation's welfare depended on science-based administration. He promoted the creation of chairs in economics at Swedish universities, organized public botanical excursions around Uppsala, undertook research travels within Sweden to identify domestic products that could replace imports, and sent some twenty students on travels around the globe to find exotic plants for acclimatization in Sweden. The results of these "patriotic" projects were published in the Flora Suecica (Swedish plants, 1745), the Fauna Suecica (Swedish animals, 1746), and four volumes of reports on journeys made to various provinces of Sweden (Öländska and Gothländska Resa, [Travel to Öland and Gotland], 1741, Västgötha Resa [Travel to Western Gothia], 1747, and Skånska Resa [Travel to Scania], 1751).

Linnaeus and his wife Sara Elisabeth, who managed the three farm estates of the family, had five children. His only son, Carolus, Jr., succeeded him at the University of Uppsala after his death in 1778, but died only a few years later.

The significance of Linnaeus's scientific achievements in natural history is twofold. His major taxonomic works, but especially the Species Plantarum (1753), a catalog of all plant species known at the time, provided systematic access to earlier literature in natural history, while the Philosophia Botanica (Philosophy of botany, 1751) laid down rules for classifying and naming organisms that would inform all future taxonomic practice. His main innovation in this respect was the introduction of binomial nomenclature, proposed for the first time in the Philosophia Botanica and for the first time consistently applied in the Species Plantarum. The latter work and zoological part of the tenth edition of the Systema Naturae (1756) form the basis of all subsequent botanical and zoological nomenclature, in conjunction with Linnaeus's extensive collections of botanical and zoological specimens, today preserved by the Linnaean Society in London.

Other fields in which Linnaeus is of historical importance include plant sexuality (Sponsalia Plantarum [The sex of plants], 1746), ecology (Oeconomia Naturae [The economy of nature], 1749), and the classification of diseases (Genera Morborum [Genera of diseases], 1763).

Bibliography

Blunt, Wilfrid, with William T. Stearn. The Compleat Naturalist: A Life of Linnaeus. London, 1971.

Frängsmyr, Tore, ed. Linnaeus: The Man and His Work. Berkeley, 1983.

Koerner, Lisbet. Linnaeus: Nature and Nation. Cambridge, Mass., 1999.

Larson, James L. Reason and Experience: The Representation of Natural Order in the Work of Carl Linnaeus. Berkeley, 1971.

Müller-Wille, Staffan. Botanik und weltweiter Handel: zur Begründung eines natürlichen Systems der Pflanzen durch Carl von Linné (1707–1778). Berlin, 1999.

Soulsby, B. H. A Catalogue of the Works of Linnaeus (and Publications More Immediately Relating Thereto) Preserved in the Libraries of the British Museum (Bloomsbury) and the British Museum (Natural History) (South Kensington). 2nd ed. London, 1933.

—STAFFAN MÜLLER-WILLE

 
Science Dictionary: Carolus Linnaeus
(li-nee-uhs, li-nay-uhs)

A Swedish biologist of the eighteenth century. Linnaeus originated our present scheme of classification of living things. Linnaeus started the standard scientific practice of referring to animals and plants by genus and species whereby, for example, people are Homo sapiens and sugar maple trees are Acer saccharum.

 
Gardener's Dictionary: Linnaeus, Carolus
(1707–1778)
  1. Perhaps the most famous botanist of all time. While commonly called Linnaeus, he was a Swede whose real name was Karl von Linné. His great contribution was to devise the binomial system for naming plants that is still used today. He gave every plant only two names, the first for its genus and the second for its species. Aster, for instance, is the genus of a group of plants that have many characteristics in common and are closely related. But with more than 250 different asters in this genus, the only way you can tell one from the other is to know what species it is. The specific epithet, or species name, further describes the plant by its characteristics or by who discovered it or where it grows. Linnaeus used the international language of educated people, Latin. Thus Aster alpinus is the name of a rock-garden plant from the mountains. Aster novae-angliae is the New England aster.
  2. The great advantage of the Linnaean system is that no two species of plants in the world have the same name. This eliminates the confusion that is often caused by using common names, since the same plant may have more than one common name, and the same common name may be used for different plants. For example, the vine Solanum dulcamara is usually called nightshade but is also called bittersweet. On the other hand, the vines best known as bittersweet are not Solanum at all but Celastrus orbiculatus (Oriental bittersweet) and Celastrus scandens (American bittersweet).
See also botanical Latin.

 
Quotes By: Carolus Linnaeus

Quotes:

"To live by medicine is to live horribly."

 
Wikipedia: Carolus Linnaeus
Carolus Linnaeus (Carl von Linné)
Carolus_Linnaeus_(cleaned_up_version).jpg
Carl von Linné, Alexander Roslin, 1775. Currently owned by and hanging at the Royal Swedish Academy of Sciences.
Born May 13 1707(1707--)
Råshult, Älmhult, Sweden
Died January 10 1778 (aged 70)
Uppsala, Sweden
Residence Flag_of_Sweden.svg Sweden
Nationality Flag_of_Sweden.svg Swedish
Field Zoology, medicine, botany
Alma mater Uppsala University
University of Harderwijk
Known for Taxonomy
Ecology
Botany
Botany auth. abbrev. L.
Religion Church of Sweden
Linnaeus adopted the name Carl von Linné after his 1761 ennoblement awarded him the title von. He is the father of Carolus Linnaeus the Younger.

Carl Linnaeus, Latinized as Carolus Linnaeus, also known after his ennoblement as Sound Carl von Linné?, (May 13, 1707[1]January 10, 1778), was a Swedish botanist, physician and zoologist[2] who laid the foundations for the modern scheme of nomenclature. He is known as the "father of modern taxonomy." He is also considered one of the fathers of modern ecology (see History of ecology).

He was the most renowned botanist of his time, and one of the most acclaimed scientists of the era. The French philosopher Jean-Jacques Rousseau sent him the message: "Tell him I know no greater man on earth."[3] The German writer Johann Wolfgang von Goethe wrote: "With the exception of Shakespeare and Spinoza, I know no one among the no longer living who has influenced me more strongly."[3] Swedish author August Strindberg wrote: "Linnaeus was in reality a poet who happened to become a naturalist".[4]

Name

The name of this botanist comes in different variants: 'Carl Linnaeus', 'Carolus Linnaeus' and 'Carl von Linné', sometimes just 'Carl Linné'. There is often confusion about his real Swedish name, as opposed to the Latinized form 'Carolus Linnaeus' he used most when he published his scientific works in Latin.

In Linnaeus' time, most Swedes had no surnames. Linnaeus' grandfather was named Ingemar Bengtsson (son of Bengt), according to Scandinavian tradition. Linnaeus' father was known as Nils Ingemarsson (son of Ingemar). Only for registration purposes, for example when matriculating at a university, one needed a surname. In the academic world, Latin was the language of choice, so when Linnaeus' father went to the University of Lund, he coined himself a Latin surname: Linnaeus, referring to a large linden (lime) tree,[5] the warden tree of the family property Linnagård (linn being an archaic form of Swedish lind, the linden). Nils Ingemarsson Linnaeus gave his son the name Carl. So the Swedish name of the boy was Carl Linnaeus.[6]

When Carl Linnaeus enrolled in private school as student at the University of Lund, he was registered as 'Carolus Linnaeus'. This Latinized form was the name he used when he published his works in Latin. After he was ennobled, in 1761,[7] he took the name Carl von Linné. 'Linné' is thus a shortened version of 'Linnaeus', 'von' is added to signify his ennoblement.

Signature of Carolus Linnaeus (who at the time wrote it as Carl v. Linné).
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Signature of Carolus Linnaeus (who at the time wrote it as Carl v. Linné).

When referring to or citing the author Linnaeus, it is appropriate to use 'Carl Linnaeus', 'Carolus Linnaeus' or just 'Linnaeus'. 'Carl von Linné' seems to be less suitable, especially for the works he published before 1762. On the title page of the second edition of Species plantarum (1762) the author's name is still printed as 'Carolus Linnaeus' (or rather the genitive form 'Caroli Linnaei') but from then on, his name is quite consistently printed as 'Carolus a Linne' or 'Carl von Linné'. Stafleu[2] uses 'Carl Linnaeus' as the author's name for all his works. In Sweden, he is commonly known by his ennobled name Carl von Linné.

The adjectival form of his name is usually 'Linnaean', but the prestigious Linnean Society of London has a journal The Linnean, awards the Linnean Medal, and so on.

Biography

Early life

Statue of Linné outside the city library in Lund
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Statue of Linné outside the city library in Lund

Linnaeus was born on the farm Råshult, located in Älmhult Municipality, in the province of Småland in southern Sweden, on May 23 1707. He was groomed as a youth to be a churchman, walking in his father's path, but showed little enthusiasm for it. In 1717 he was sent to the primary school at the city Växjö, and in 1724 he passed to the gymnasium there, but with meager results in the clerical faculty. Instead his interest in botany made an impression on a local physician, who realized there might be a future in the field for the young Linnaeus, and on his recommendation Linnaeus's father sent his son to study at the closest university, Lund University. Linnaeus studied in Lund and tried to make something of the botanical garden there, but because it had been neglected, it was suggested to him that he would have better prospects at the University of Uppsala; Linnaeus left for Uppsala within a year.[8]

His time in Uppsala was financially rough, until he became acquainted with the renowned scientist Olof Celsius, uncle of astronomer Anders Celsius, who came up with the temperature scale that was given his name. Celsius, impressed with Linnaeus's knowledge and botanical collections, offered him board and lodging.[8]

During this period, he came upon a work which ultimately led to the establishment of his artificial system of plant classification. This was a review of Sébastien Vaillant's Sermo de Structura Florum (Leiden, 1718), a thin quarto in French and Latin. Through this, he became convinced of the importance of the stamens and pistils, about which he wrote a short treatise on the sexes of plants in 1729. This caught the attention of Olof Rudbeck the Younger (1660-1740), the professor of botany in the university, who subsequently appointed Linnaeus his adjunct. In 1730, Linnaeus began giving lectures in the faculty.[8]

In 1732 the Academy of Sciences at Uppsala financed Linnaeus on an expedition to Lappland in northernmost Sweden, then virtually unknown. The result of this was first The Florula Lapponica (the first work to use the Sexual System) and later the Flora Lapponica published in 1737. His journey to sub-Arctic Lapland is notable for exotic and adventurous episodes.

He married Sara Elisabeth Morea and had seven children, Carolus, Elisabeth, Sara Magdalena, Lovisa, Sara Christina, Johannes and Sophie.

Travel and research

Carl Linnaeus dressed in Lapp costume. Portraited while in Netherlands, by Martin Hoffman in Hartecamp, 1737 [9]
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Carl Linnaeus dressed in Lapp costume. Portraited while in Netherlands, by Martin Hoffman in Hartecamp, 1737 [9]

In 1735 Linnaeus moved to the Netherlands, where he was to spend the next three years. Here he earned his only academic degree, at the University of Harderwijk, in 6 days. This degree in Medicine consisted of a three day printing job of his botanical notes in Latin. He met with botanist Jan Frederik Gronovius and showed him a draft of his work on taxonomy, the Systema Naturae. This was published in the Netherlands the same year, as an eleven page work. [8] Linnaeus stayed in the Netherlands for 12 months, until he made a journey to London in 1736, where he visited Oxford University and met several highly regarded people, such as the physicist Hans Sloane, the botanist Philip Miller and the professor of botany J. J. Dillenius. The journey lasted a few months, after which he returned to Amsterdam, and continued the printing of his Genera Plantarum, the starting point of his taxonomy.

View of Hartekamp from the Leiden-Haarlem canal, with the famous 'Hortus Cliffortianus' or garden of George Clifford in Heemstede as it is today
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View of Hartekamp from the Leiden-Haarlem canal, with the famous 'Hortus Cliffortianus' or garden of George Clifford in Heemstede as it is today

In 1737 Linnaeus spent a year studying and working on the Heemstede garden of George Clifford, a wealthy Amsterdam banker introduced to him by Herman Boerhaave. Clifford had many business connections with Dutch merchants and collected plants from around the world. His garden was famous. Linnaeus published the description of Clifford's garden as Hortus Cliffortianus. In 1738, the work was done, and he started his journey back home. On his way he stayed in Leiden for a year, during which he had his Classes Plantarum printed; then travelling to Paris, before setting sail for Stockholm.[8]

Back in Sweden

Returning to Sweden in 1738, he practiced medicine (specializing in the treatment of syphilis) and lectured in Stockholm before being awarded a professorship at Uppsala in 1741. At Uppsala, in the University's botanical garden, he arranged the plants according to his system of classification; he then made three more expeditions to various parts of Sweden and inspired a generation of students. Linnaeus continued to revise his Systema Naturae, which grew from a slim pamphlet into a multivolume work, as his ideas were changing and more and more plant and animal specimens were sent to him from every corner of the globe. His pride in his work was very much evident; he thought of himself as a second Adam. He liked to say ' Deus creavit, Linnaeus disposuit, ' Latin for, "God created, Linnaeus organized". This self-perception was further shown by the artwork on the cover of his Systema Naturae, which depicts a man giving Linnaean names to new creatures as they are created in the Garden of Eden.

Arriving in Stockholm, he settled as a physician. In September 1739 Linnaeus married Sara Elisabeth Morea (Moræaus) and the marriage took place at her family farm Sveden outside Falun; Sara he had met on one of his first scientific journeys to the county of Dalarna already five years earlier 1734. In 1739 he was one of the founders of the Royal Swedish Academy of Sciences (Kungliga vetenskapsakademin). In 1741 he ascended to the chair of medicine at Uppsala and moved there. The position was soon exchanged for the chair of botany.[8]

In 1743-44, Linnaeus designed today's thermometer scale by reversing that invented by Anders Celsius (1701-1744)--originally 100 was the melting point of ice and 0 water’s boiling point[2]. Throughout the 1740s he conducted numerous field trips to many locations in Sweden to classify plants and animals: in 1741 to the Stora Alvaret on Öland and also to Gotland; in 1746 to Västergötland; and in 1749 to Scania including visits to the Kullaberg. The reports of each travel were published in the Swedish language to be accessible for the general public. Apart from containing many important reports of common life of that time, they have in recent years been appreciated for their fine treatment of the Swedish language, indeed putting Linnaeus as one of the foremost Swedish writers of the 18th century.[10]

The Linnaean garden has been maintained and can still be visited in Uppsala today
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The Linnaean garden has been maintained and can still be visited in Uppsala today

When not on travels, Linnaeus worked on his classifications, extending them to the kingdom of animals and the kingdom of minerals. The last may seem somewhat odd, but the theory of evolution was still a long time away. Linnaeus was only attempting a convenient way of categorizing the elements of the natural world.

The Swedish king, Adolf Fredrik, ennobled Linnaeus in 1757, and after the privy council finally had confirmed the ennoblement (in 1761 after a few years of discussions) Linnaeus took the surname von Linné, later often signing just Carl Linné.

Last years

Tombstone of father and son Linnaeus in Uppsala Cathedral
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Tombstone of father and son Linnaeus in Uppsala Cathedral

After his ennoblement, he continued teaching and writing. His reputation had spread over the world, and he corresponded with many different people. For example, Catherine II of Russia sent him seeds from her country.[11]

Of Linnaeus' children, five reached adult age: four girls and one boy. Only the boy, Carolus Linnaeus the Younger, was allowed to study. He did not have the same passion as his father, but managed to make a reputation in botany. At the father's death, the son succeeded him as professor; however, he died only five years later. The son is commonly referred to as filius (abbreviated "L. f.") to distinguish him from his famous father.[11]

Linnaeus' last years were troubled by weak health, and he suffered from gout and tooth aches.[11] A stroke in 1774 greatly weakened him, and two years later he suffered another, losing the use of his right side. He died on January 1778 in Uppsala, during a ceremony in the Uppsala Cathedral. He was buried in the cathedral.[8]

Linnaean taxonomy

Main article: Linnaean taxonomy

Linnaeus's prime contribution to taxonomy was to establish conventions for the naming of living organisms that became universally accepted in the scientific world--the work of Linnaeus represents the starting point of binomial nomenclature. In addition Linnaeus developed, during the great 18th century expansion of natural history knowledge, what became known as the Linnaean taxonomy; the system of scientific classification now widely used in the biological sciences.

The Linnaean system classified nature within a hierarchy, starting with three kingdoms. Kingdoms were divided into Classes and they, in turn, into Orders, which were divided into Genera (singular: genus), which were divided into Species (singular: species). Below the rank of species he sometimes recognized taxa of a lower (unnamed) rank (for plants these are now called "varieties").

His groupings were based upon shared physical characteristics. Only his groupings for animals remain to this day, and the groupings themselves have been significantly changed since Linnaeus' conception, as have the principles behind them. Nevertheless, Linnaeus is credited with establishing the idea of a hierarchical structure of classification which is based upon observable characteristics. While the underlying details concerning what are considered to be scientifically valid 'observable characteristics' has changed with expanding knowledge (for example, DNA sequencing, unavailable in Linnaeus' time, has proven to be a tool of considerable utility for classifying living organisms and establishing their relationships to each other), the fundamental principle remains sound.

Mankind

Linnaeus presented a concept of 'race' as applied to humans, also including mythological creatures. Within Homo sapiens he proposed four taxa of a lower (unnamed) rank. These categories were Americanus, Asiaticus, Africanus and Europeanus. They were based on place of origin at first, and later on skin colour.[citation needed] Each race had certain characteristics that he considered endemic to individuals belonging to it. Native Americans were reddish, stubborn and easily angered. Africans were black, relaxed and negligent. Asians were sallow, avaricious and easily distracted. Europeans were white, gentle and inventive.[citation needed]

In addition, in Amoenitates academicae (1763), he defined Homo anthropomorpha as a catch-all term for a variety of human-like mythological creatures, including the troglodyte, satyr, hydra, and phoenix. He claimed that these creatures not only actually existed but were in reality inaccurate descriptions of real-world ape-like creatures.

He also, in Systema Naturæ, defined Homo ferus as "four-footed, mute, hairy". Included in this classification were Juvenis lupinus hessensis (wolf boys), who he thought were raised by animals, Juvenis hannoveranus (Peter of Hanover) and Puella campanica (Wild-girl of Champagne). He likewise defined Homo monstrosus as agile and fainthearted, and included in this race the Patagonian giant, the dwarf of the Alps, and the monorchid Hottentot.

Linnaeus' scientifical research took science on a path that diverged from what had been taught by religious authorities. The Lutheran Archbishop of Uppsala had accused him of "impiety." In a letter [3] to Johann Georg Gmelin dated February 25, 1747, Linnaeus wrote:

  • Original Latin

Non placet, quod Hominem inter ant[h]ropomorpha collocaverim, sed homo noscit se ipsum. Removeamus vocabula. Mihi perinde erit, quo nomine utamur. Sed quaero a Te et Toto orbe differentiam genericam inter hominem et Simiam, quae ex principiis Historiae naturalis. Ego certissime nullam novi. Utinam aliquis mihi unicam diceret! Si vocassem hominem simiam vel vice versa omnes in me conjecissem theologos. Debuissem forte ex lege artis.

  • English Translation

It is not pleasing that I place Man among the primates, but man is intimately familiar with himself. Let's not quibble over words. It will be the same to me whatever name we use. But I request from you and from the whole world the generic difference between Man and Simian, and this from the principles of Natural History. I certainly know of none. If only someone might tell me just one! If I called man a simian or vice versa I would bring together all the theologians against me. Perhaps I ought to, in accordance with the law of the discipline [of Natural History].

Bibliography

Systema Naturae

Main article: Systema Naturae
Title page of the 1760 edition of Systema Naturae
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Title page of the 1760 edition of Systema Naturae

The first edition of Systema Naturae was printed in the Netherlands in 1735. It was an eleven page work. By the time it reached its 10th edition (1758), it classified 4,400 species of animals and 7,700 species of plants. In it, the unwieldy names mostly used at the time, such as "Physalis annua ramosissima, ramis angulosis glabris, foliis dentato-serratis", were supplemented with concise and now familiar "binomials", composed of the generic name, followed by a specific epithet - in the case given, Physalis angulata. These binomials could serve as a label to refer to the species. Higher taxa were constructed and arranged in a simple and orderly manner. Although the system, now known as binomial nomenclature, was developed by the Bauhin brothers (see Gaspard Bauhin and Johann Bauhin) almost 200 years earlier, Linnaeus was the first to use it consistently throughout the work, also in monospecific genera, and may be said to have popularized it within the scientific community.

Linnaeus named taxa in ways that personally struck him as common-sensical; for example, human beings are Homo sapiens (see sapience). He also briefly described a second human species, Homo troglodytes ("cave-dwelling man"). This was however likely a confusion originating from exaggerated second- or third-hand accounts of the chimpanzee (currently most often placed in a different genus, as Pan troglodytes). The group "mammalia" are named for their mammary glands because one of the defining characteristics of mammals is that they nurse their young.

Species Plantarum

Main article: Species Plantarum

Species Plantarum was first published in 1753, as a two-volume work. Its prime importance is perhaps that it is the primary starting point of plant nomenclature as it exists today.

In 1754 Linnaeus divided the plant Kingdom into 25 classes. One, Cryptogamia, included all the plants with concealed reproductive parts (algae, fungi, mosses and liverworts and ferns).[12]

Students

Carolus imbued his students with his own thoroughness in an atmosphere of enthusiasm, trained them to close and accurate observation, and then sent them to various parts of the globe. Some of the notable students and expeditions include Pehr Kalm's visit to North America 1748–1751; Daniel Solander, traveling first with James Cook's expedition to the Pacific in 1768, then in 1771 to Iceland, the Faroes and Orkney; Fredric Hasselquist, who visited Palestine and parts of Asia Minor; and Carl Peter Thunberg, journeying to Japan, South Africa, Java, and Sri Lanka.

See also

The Coat of Arms of Carl von Linné
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The Coat of Arms of Carl von Linné

Notes

  1. ^ “Carl Linnaeus was born in Råshult, Småland, in 1707 on May 13th (Old Style) or 23rd according to our present calendar.” Citation: Linnaeus the child by Uppsala University. "Old Style" in the cited text refers to the Swedish calendar.
  2. ^ a b Stafleu, F.A. (1976-1998) Taxonomic Literature second edition. An authoritative work on the names of botanists, their works and publication data, issued under the auspices of the IAPT.
  3. ^ a b "What people have said about Linnaeus", Uppsala University website "Linné on line" English language version.
  4. ^ Linnaeus deceased Uppsala University website "Linné on line" English language version.
  5. ^ (Swedish) Lind on Den virtuella floran, by The Swedish Museum of Natural History, accessed on 14 May 2006
  6. ^ Stearn, W.T. (1992), Botanical Latin, fourth edition: p. 283-284, Timber Press, Portland, Oregon. ISBN 978-0-88192-321-6.
  7. ^ W.T. Stearn, (1957), An introduction to the Species Plantarum and cognate botanical works of Carl Linnaeus, Principal events in the life of Linnaeus; in: Carl Linnaeus, Species Plantarum, A Facsimile of the first edition 1753, Volume I: 14, Ray Society, London.
  8. ^ a b c d e f g Encyclopædia Britannica Eleventh Edition, article Linnaeus. Suggested direct-link: [1], accessed September 1.
  9. ^ Sörling & Fagerstedt, p.32
  10. ^ Algulin, Ingemar, A History of Swedish Literature (1989), p.43
  11. ^ a b c Uppsala University, Linné Online, English language version
  12. ^ Hoek, C.van den, Mann, D.G. and Jahns, H.M. 2005. Algae An Introduction to Phycology. Cambridge University Press, Cambridge. ISBN 0 521 30419 9

Further reading

  • Brightwell, C. L. A Life of Linnaeus. London: J. Van Voorst, 1858.
  • Hovey, Edmund Otis. The Bicentenary of the Birth of Carolus Linnaeus. New York: New York Academy of Sciences, 1908.
  • Sörlin & Fagerstedt, Linné och hans lärjungar, 2004. ISBN 91-27-35590-X
  • J.L.P.M.Krol, Linneaus' verblijf op de Hartekamp In: Het landgoed de Hartekamp in Heemstede. Heemstede, 1982. ISBN 90-70712-01-6
  • Linneaus plays a significant role in the short story entitled "Rare Bird" by Andrea Barrett (which appears in her 1996 anthology "Ship Fever").

External links

Wikimedia Commons has media related to:


Persondata
NAME Linnaeus, Carolus
ALTERNATIVE NAMES Linné, Carl von
SHORT DESCRIPTION botanist and physician
DATE OF BIRTH 1707-05-23
PLACE OF BIRTH Råshult, Älmhult, Sweden
DATE OF DEATH 1778-01-10
PLACE OF DEATH Uppsala, Sweden

hsb:Carl von Linnénds-nl:Carolus Linnaeus


 
 

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