Johannes Gottfried Hallier (6 July 1868 – 10 March 1932) was a German botanist who was a native of Jena

Jena

Jena is a university city in central Germany on the river Saale. It has a population of approx. 103,000 and is the second largest city in the federal state of Thuringia, after Erfurt.-History:Jena was first mentioned in an 1182 document...

.

He studied botany and zoology

Zoology

Zoology |zoölogy]]), is the branch of biology that relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct...

 at the University of Jena under Christian Ernst Stahl

Christian Ernst Stahl

Christian Ernst Stahl was a German botanist who was a native of Schiltigheim, Alsace. He studied botany at the University of Strasbourg with Pierre-Marie-Alexis Millardet , and at the University of Halle under Anton de Bary...

 (1848–1919) and Ernst Haeckel

Ernst Haeckel

The "European War" became known as "The Great War", and it was not until 1920, in the book "The First World War 1914-1918" by Charles à Court Repington, that the term "First World War" was used as the official name for the conflict.-Research:...

 (1834–1919), and continued his studies at the University of Munich under Ludwig Radlkofer

Ludwig Adolph Timotheus Radlkofer

Ludwig Adolph Timotheus Radlkofer , was a noted Bavarian taxonomist and botanist, who was Professor of Botany at the University of Munich....

 (1829–1927) and Richard Hertwig

Richard Hertwig

Richard Wilhelm Karl Theodor Ritter von Hertwig , also Richard Hertwig or Richard von Hertwig, was a German zoologist and professor of 50 years, notable as the first to describe zygote formation as the fusing of spermatozoa inside the membrane of an egg cell during fertilization.Richard Hertwig was...

 (1850–1937). From 1893 until 1897 he worked at the Buitenzorg Botanical Garden

Botanical garden

A botanical garden The 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. is a well-tended area displaying a wide range of plants labelled with their botanical names...

 on Java

Java

Java is an island of Indonesia. With a population of 135 million , it is the world's most populous island, and one of the most densely populated regions in the world. It is home to 60% of Indonesia's population. The Indonesian capital city, Jakarta, is in west Java...

, and afterwards became an assistant at the Botanical Institute at the University of Munich. In 1894 Hallier became the second European to climb Mount Kelam

Mount Kelam

Mount Kelam is an exposed granitic dome in West Kalimantan, Borneo, with an elevation of 1,002 m.In 1894, German botanist Johannes Gottfried Hallier became the second European to climb Mount Kemal, after a certain Dr. Gürtler. Hallier ascended the summit 5 times between January 30 and...

 (after a certain Dr. Gürtler) and the first to collect specimens of the pitcher plant

Pitcher plant

Pitcher plants are carnivorous plants whose prey-trapping mechanism features a deep cavity filled with liquid known as a pitfall trap. It has been widely assumed that the various sorts of pitfall trap evolved from rolled leaves, with selection pressure favouring more deeply cupped leaves over...

 Nepenthes clipeata

Nepenthes clipeata

Nepenthes clipeata , or the Shield-Leaved Pitcher-Plant, is a tropical pitcher plant known only from the near-vertical granite cliff faces of Mount Kelam in Kalimantan, Borneo...

. He ascended the summit 5 times between January 30 and February 13 of that year. Beginning in 1898 Hallier worked at the Botanical Museum in Hamburg

Hamburg

-History:The first historic name for the city was, according to Claudius Ptolemy's reports, Treva.But the city takes its modern name, Hamburg, from the first permanent building on the site, a castle whose construction was ordered by the Emperor Charlemagne in AD 808...

. He died on March 10, 1932 in Oegstgeest

Oegstgeest

Oegstgeest is a town and municipality in the province of South Holland in the western Netherlands. Its population was 22,576 in 2008.-Location :...

, Netherlands.

From 1903-04 he took part in a scientific expedition to India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, Ceylon and the Malay Archipelago

Malay Archipelago

The Malay Archipelago refers to the archipelago between mainland Southeastern Asia and Australia. The name was derived from the anachronistic concept of a Malay race....

. He published several works on the botany of the Dutch East Indies

Dutch East Indies

The Dutch East Indies was a Dutch colony that became modern Indonesia following World War II. It was formed from the nationalised colonies of the Dutch East India Company, which came under the administration of the Netherlands government in 1800....

, including treatises on the flora of Borneo

Borneo

Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....

. From 1908 to 1922, Hallier was a curator

Curator

A curator is a manager or overseer. Traditionally, a curator or keeper of a cultural heritage institution is a content specialist responsible for an institution's collections and involved with the interpretation of heritage material...

 at the Rijksherbarium in Leiden. He is remembered today for introducing a phylogenetic classification of flowering plants that is known as the "Hallier system".