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Portrait of Theodor Loesener

Theodor Loesener

1865 – 1941

German botanist

Botanist Independent scholarBotanical collector
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About Theodor Loesener

Lived 1865 – 1941 (aged 75). Theodor Loesener was a German botanist, independent scholar, botanical collector and scientific collector.

Ludwig Eduard Theodor Lösener (23 November 1865 – 2 June 1941) was a German botanist who collected widely in the field in Germany: Amrum island, the Alps, the Black Forest, Bavaria, Rügen island and Tyrol in modern Austria. His speciality was the Aquifoliaceae of the world. He also studied cultivars of Ilex species. His name is usually spelled as 'Loesener' in English sources.

In 1941, botanist Albert Charles Smith published the genus Loeseneriella, in the family Celastraceae, in his honour.

The standard author abbreviation Loes. is used to indicate this person as the authority when citing a botanical name. The International Plant Names Index lists more than 1800 taxa attributed to him.

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Important facts

Born
23 November 1865, Berlin
Birth century
19th century
Died
2 June 1941, Steglitz
Occupation
Botanist, independent scholar, botanical collector, scientific collector
Nationality
Kingdom of Prussia, German Reich
Education
Frederick William University Berlin
Employers
Botanic Garden and Botanical Museum Berlin
Also known as
Loes., L. E. T. Loesener, Loesener, Th. Loesener, Ludwig Eduard Theodor Loesener, Lösener

People in Theodor Loesener's life

Named in this biography and alive at the same time

Portrait of Albert Charles Smith
Albert Charles Smith
1906 – 1999
Botanist
 Portrait of Charles Smith
Charles Smith
1910 – 1988
Rugby league player

Contemporaries

People whose lives overlapped Theodor Loesener's

Portrait of Thomas Henry Huxley
Thomas Henry Huxley
1825 – 1895
Biologist
 Portrait of Hans Peter Jørgen Julius Thomsen
Hans Peter Jørgen Julius Thomsen
1826 – 1909
Chemist
 Portrait of Henry Littlejohn
Henry Littlejohn
1826 – 1914
Physician
 Portrait of Stanislao Cannizzaro
Stanislao Cannizzaro
1826 – 1910
Chemist
 Portrait of Balfour Stewart
Balfour Stewart
1828 – 1887
Physicist
 Portrait of Célestin Port
Célestin Port
1828 – 1901
Historian

Frequently asked questions

Who was Theodor Loesener?

German botanist (1865–1941)

When was Theodor Loesener born?

Theodor Loesener was born on 23 November 1865 in Berlin.

When did Theodor Loesener die?

Theodor Loesener died on 2 June 1941 in Steglitz.

What was Theodor Loesener's occupation?

Theodor Loesener was a botanist, independent scholar, botanical collector and scientific collector.

What nationality was Theodor Loesener?

Theodor Loesener was German.

Sources & further reading

· Wikipedia: Theodor Loesener

· Wikidata: Q4273076

· DBpedia: Ludwig Eduard Theodor Loesener

Cite this page

APA: Biography.guide. (2026). Theodor Loesener. https://biography.guide/theodor-loesener/

MLA: "Theodor Loesener." Biography.guide, https://biography.guide/theodor-loesener/.

Chicago: "Theodor Loesener." Biography.guide. https://biography.guide/theodor-loesener/.

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