Daniel Matthias Heinrich Mohr (8 April 1780,

Quickborn Quickborn () is a town in the district of Pinneberg, in Schleswig-Holstein, Germany. It belongs to Metropolregion Hamburg and is located on the north part of Hamburg on Autobahn A7. It is a 700 year old town which also belonged to Denmark in th ...

– 26 August 1808,

Kiel Kiel ( ; ) is the capital and most populous city in the northern Germany, German state of Schleswig-Holstein. With a population of around 250,000, it is Germany's largest city on the Baltic Sea. It is located on the Kieler Förde inlet of the Ba ...

) was a German

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

. As a young botanist from the

Duchy of Holstein The Duchy of Holstein (; ) was the northernmost state of the Holy Roman Empire, located in the present German state of Schleswig-Holstein. It originated when King Christian I of Denmark had his County of Holstein-Rendsburg elevated to a duchy ...

, he started his career as a pupil of

Johan Christian Fabricius Johann Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is co ...

and Heinrich Adolf Schrader at the

University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen (, commonly referred to as Georgia Augusta), is a Public university, public research university in the city of Göttingen, Lower Saxony, Germany. Founded in 1734 ...

. He later became a professor of

zoology Zoology ( , ) is the scientific study of animals. Its studies include the anatomy, structure, embryology, Biological classification, classification, Ethology, habits, and distribution of all animals, both living and extinction, extinct, and ...

and botany, and his research projects focused on

algae Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ...

and

bryophyte Bryophytes () are a group of embryophyte, land plants (embryophytes), sometimes treated as a taxonomic Division (taxonomy), division referred to as Bryophyta ''Sensu#Common qualifiers, sensu lato'', that contains three groups of non-vascular pla ...

s. He named many species (often together with Friedrich Weber) and was among the first to systematise

by means of their reproduction. In 1803 he obtained his doctorate from the

University of Kiel Kiel University, officially the Christian Albrecht University of Kiel, (, abbreviated CAU, known informally as Christiana Albertina) is a public research university in the city of Kiel, Germany. It was founded in 1665 as the ''Academia Holsator ...

with the dissertation ''Observationes Botanicae quibus plantarum cryptogamarum ordines''. In the summer of 1803, with Weber, he toured southern

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

and made the acquaintance of

Erik Acharius Erik Acharius (10 October 1757 – 14 August 1819) was a Swedish botanist who pioneered the Taxonomy (biology), taxonomy of lichens and is known as the "father of lichenology". Acharius was famously the last pupil of Carl Linnaeus. Life Ac ...

Olof Swartz Olof Peter Swartz (21 September 1760 – 19 September 1818) was a Swedish botanist and taxonomist. He is best known for his taxonomic work and studies into pteridophytes, but also studied orchids, mosses and lichens. Biography Olof Swartz a ...

Carl Peter Thunberg Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg (11 November 1743 – 8 August 1828), was a Sweden, Swedish Natural history, naturalist and an Apostles of Linnaeus, "apostle" of Carl Linnaeus ...

and

Adam Afzelius Adam Afzelius (8 October 175020 January 1837) was a Swedish botanist and an apostle of Carl Linnaeus. Afzelius was born at Larv in Västergötland in 1750. He was appointed teacher of oriental languages at Uppsala University in 1777, and in 1785 ...

. As a result of the journey, Mohr and Weber published ''Naturhistorische Reise durch einen Theil Schwedens'' (1804). In 1805 he issued the

exsiccata Exsiccata (Latin, ''gen.'' -ae, ''plur.'' -ae) is a work with "published, uniform, numbered set of preserved specimens distributed with printed labels". Typically, exsiccatae are numbered collections of dried herbarium Biological specimen, spe ...

''Schleswig-Holsteinische Algae aquaticae''. In 1807 he became an associate professor at Kiel, but died the following year at the age of 28. In addition to the aforementioned work, he also published with Weber the following: * ''Index musei plantarum cryptogamarum'', 1803. * ''Beiträge zur Naturkunde Erster Band'', 1805. * ''Beiträge zur Naturkunde 2'', 1810. In 1806 Olof Swartz named the botanical genus '' Mohria'' after him.BHL
Taxonomic literature : a selective guide to botanical publications Specimens collected by Mohr are cared for in herbaria around the world, including the

University of Oslo The University of Oslo (; ) is a public university, public research university located in Oslo, Norway. It is the List of oldest universities in continuous operation#Europe, oldest university in Norway. Originally named the Royal Frederick Univ ...

Herbarium (O), and the

National Herbarium of Victoria The National Herbarium of Victoria (Index Herbariorum code: MEL) is one of Australia's earliest herbaria and the oldest scientific institution in Victoria. Its 1.56 million specimens of preserved plants, fungi and algae—collectively known ...

(MEL),

Royal Botanic Gardens Victoria Royal Botanic Gardens Victoria (RBGV) are botanical garden, botanic gardens across two sites–Royal Botanic Gardens, Melbourne, Melbourne and Royal Botanic Gardens, Cranbourne, Cranbourne. Melbourne Gardens was founded in 1846 when land w ...

Sources

{{DEFAULTSORT:Mohr, Daniel Matthias Heinrich 1780 births 1808 deaths People from the Duchy of Holstein 18th-century German botanists 19th-century German botanists German bryologists German phycologists University of Göttingen alumni University of Kiel alumni Academic staff of the University of Kiel People from Pinneberg (district)