Johannes Gottfried Hallier

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

He studied botany and zoology at the University of Jena under Christian Ernst Stahl (1848–1919) and Ernst Haeckel (1834–1919), and continued his studies at the University of Munich under Ludwig Radlkofer (1829–1927) and Richard Hertwig (1850–1937). From 1893 until 1897 he was based at the Buitenzorg Botanical Garden in Java, In 1894 Hallier became the second European to climb Mount Kelam (after a certain Dr. Gürtler) and the first to collect specimens of the pitcher plant Nepenthes clipeata. He ascended the summit 5 times between January 30 and February 13 of that year. After his return to Germany, he served as an assistant in the Botanical Institute at the University of Munich. Beginning in 1898 Hallier worked at the Botanical Museum in Hamburg.

From 1903-04 he took part in a scientific expedition to India, Ceylon and the Malay Archipelago. From 1908 to 1922, Hallier was a curator at the Rijksherbarium in Leiden. He died on March 10, 1932 in Oegstgeest, Netherlands.

He is credited for introducing a phylogenetic classification of flowering plants that became known as the "Hallier system". He published several works on the botany of the Dutch East Indies, including treatises on the flora of Borneo.

References

• Gurcharan Singh (2004). Plant Systematics. Science Publishers. ISBN 1-57808-351-6.
• American Journal of Botany Systematics and Phytogeography
• Parts of this article are based on a translation of an article from the German Wikipedia.