Gregor Konrad Michael Kraus ''KRAUSIOR LEGENDA'' (9 May 1841 in

Bad Orb Bad Orb (; "Thermae on the Orb River") is a spa town in the Main-Kinzig-Kreis district of Hesse, Germany. It is situated east of Hanau between the forested hills of the Spessart. Bad Orb has a population of over 10,000. Its economy is dominate ...

Hesse-Nassau The Province of Hesse-Nassau () was a province of the Kingdom of Prussia from 1868 to 1918, then a province of the Free State of Prussia until 1944. Hesse-Nassau was created as a consequence of the Austro-Prussian War of 1866 by combining the p ...

– 14 November 1915 in

Würzburg Würzburg (; Main-Franconian: ) is a city in the region of Franconia in the north of the German state of Bavaria. Würzburg is the administrative seat of the ''Regierungsbezirk'' Lower Franconia. It spans the banks of the Main River. Würzburg is ...

) was a 19th-century

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ...

and

plant ecologist Plant ecology is a subdiscipline of ecology which studies the distribution and abundance of plants, the effects of environmental factors upon the abundance of plants, and the interactions among and between plants and other organisms. Examples o ...

. Kraus studied

medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pract ...

and natural history at the

University of Würzburg The Julius Maximilian University of Würzburg (also referred to as the University of Würzburg, in German ''Julius-Maximilians-Universität Würzburg'') is a public research university in Würzburg, Germany. The University of Würzburg is one of ...

. He became inspired by the professor of

botany Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek w ...

Julius von Sachs Julius von Sachs (; 2 October 1832 – 29 May 1897) was a German botanist from Breslau, Prussian Silesia. He is considered the founder of experimental plant physiology and co-founder of modern water culture. Julius von Sachs and Wilhelm Knop a ...

. Thus, he specialized in that discipline and obtained a

doctorate degree A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism ''l ...

in 1866. He first became professor and director of the

botanic garden A botanical garden or botanic gardenThe terms ''botanic'' and ''botanical'' and ''garden'' or ''gardens'' are used more-or-less interchangeably, although the word ''botanic'' is generally reserved for the earlier, more traditional gardens, an ...

at the

University of Erlangen A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...

, where he stayed until 1872. In 1872, he succeeded

Anton de Bary Heinrich Anton de Bary (26 January 183119 January 1888) was a German surgeon, botanist, microbiologist, and mycologist (fungal systematics and physiology). He is considered a founding father of plant pathology (phytopathology) as well as the fou ...

as professor and director of the

at the

University of Halle Martin Luther University of Halle-Wittenberg (german: Martin-Luther-Universität Halle-Wittenberg), also referred to as MLU, is a public, research-oriented university in the cities of Halle and Wittenberg and the largest and oldest university i ...

. He remained in that position until 1898, when he succeeded his former mentor

Sachs Sachs is a German surname, meaning "man from Saxony". Sachs is a common surname among Ashkenazi Jews from Saxony, in the United States sometimes adopted in the variant Zaks, supposedly in reference to the Hebrew phrase ''Zera Kodesh Shemo'' (ZaKS), ...

at the

. There he stayed for the remainder of his professional life. Kraus studied numerous aspects of the discipline of

, e.g. fossil trees,

driftwood __NOTOC__ Driftwood is wood that has been washed onto a shore or beach of a sea, lake, or river by the action of winds, tides or waves. In some waterfront areas, driftwood is a major nuisance. However, the driftwood provides shelter and fo ...

from

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

collected on the northeastern coast of

Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is t ...

by the

Second German North Polar Expedition The German North Polar Expeditions were a short series of mid-19th century German expeditions to the Arctic. The aim was to explore the North Pole region and to brand the newly united, Prussian-led German Empire as a great power. In 1866, German ge ...

, chlorophyll, photosynthesis in Crassulaceae to the history of

s in general and the Botanic Garden of Halle University in particular. His name, however, became particularly associated with the relationships between plants and

microclimate A microclimate (or micro-climate) is a local set of atmospheric conditions that differ from those in the surrounding areas, often with a slight difference but sometimes with a substantial one. The term may refer to areas as small as a few squ ...

. He published detailed accounts of the distribution of water in plant bodies and

micrometeorology Microscale meteorology or micrometeorology is the study of short-lived atmospheric phenomena smaller than mesoscale, about or less. These two branches of meteorology are sometimes grouped together as "mesoscale and microscale meteorology" (MMM) a ...

References

External links

* {{DEFAULTSORT:Kraus, Gregor 19th-century German botanists German ecologists University of Würzburg alumni Academic staff of the University of Würzburg 1841 births 1915 deaths Plant ecologists People from Main-Kinzig-Kreis