Johannes Paulus Lotsy

Johannes Paulus Lotsy
Born	April 11, 1867 Dordrecht
Died	November 17, 1931 (1931-11-18) (aged 64) Voorburg
Nationality	Dutch
Known for	Works on evolution and heredity.
Spouse	Catharina Christina Goossen
Scientific career
Author abbrev. (botany)	Lotsy

Johannes Paulus Lotsy (April 11, 1867 – November 17, 1931) was a Dutch botanist, specializing in evolution and heredity. Lotsy was born in Dordrecht and died in Voorburg.

Career

After getting his PhD from Göttingen University he had a teaching positions at Johns Hopkins University (1891-1895) where he was director of the herbarium. From 1896 to 1900 he worked in Java. Then he taught at Leiden University (1904-1909), as a lecturer in Systematic Botany. He became director of the State Herbarium (Rijksherbarium) 1906-1909, then Secretary of the Hollandsche Maatschappij van Wetenschappen.

He founded the Association internationale des Botanistes and was editor of the Botanisches Centralblatt. He proposed a system of plant classification, based on phylogenetics. Lotsy argued for a major role of hybridization in evolution.

Expeditions

India (1895-1900), the United States (1922), Australia and New Zealand (1925), South Africa (1926-27), and Egypt (1930). He also studied the flora of Italy and Switzerland.

Publications

• 1928. Voyages of exploration to judge of the bearing of hybridization upon evolution (Genetica : nederlandsch tijdschrift voor erfelijheids- en afstammingsleer). Ed. M. Nijhoff
• 1922a. Van den Atlantischen Oceaan naar de Stille Zuidzee
• 1922b. A popular account of evolution. The Cawthron institute, Nelson, Nueva Zelanda. Cawthron lecture. Ed. R.W. Stiles & Co. 22 pp.
• 1915. Het Tegenwoordige Standpunt der Evolutie-leer
• 1911. Série IIIA. Sciences exactes. 1-4. Rédigées par J. P. Lotsy
• 1906a. Résultats scientifiques du Congrès international de botanique, Vienne, 1905. Wissenschaftliche Ergebnisse des Internationalen botanischen Kongresses, Wien, 1905 ... Redigiert von J. P. Lotsy ... Mit ... 1 Karte, etc
• 1906b. Vorlesungen über Deszendenztheorien, mit besonderer Berücksichtigung der botanischen Seite der Frage, gehalten an der Reichsuniversität zu Leiden, etc.
• 1899. Rhopalocnemis Phalloides Jungh: A morphological-systematical study. Ed. E.J. Brill
• 1898. Contributions to the life-history of the genus Gnetum. Ed. E.J. Brill
• 1894. A contribution to the investigation of the assimilation of free atmospheric nitrogen by white and black mustard. Bulletin / U.S. Department of Agriculture, Office of Experiment Stations. G.P.O. 19 pp.

Books

• 2008. Evolution By Means Of Hybridization. Reeditado Maudsley Press. 176 pp. ISBN 978-1-4097-0261-0
• 1928. A Popular Account of Evolution
• 1925. Evolution considered in the light of Hybridization. Ed. Canterbury College by Andrews, Baty & Co. 66 pp.
• 1916. Evolution by Means of Hybridization. The Hague, Martinus Nijhoff, 166 pp.
• 1907-1911. Vorträge über botanische Stammesgeschichte gehalten an der Reichsuniversität zu Leiden. Ein Lehrbuch der Pflanzensystematik. In drei Bände. Jena, Verlag von Gustav Fischer. With illustrations.
  • Lotsy, J. P. (1911). Vorträge über botanische stammesgeschichte, gehalten an der Reichsuniversität zu Leiden. Ein lehrbuch der pflanzensystematick. III Cormophyta Siphonogamia. Jena: G. Fischer. Retrieved 28 January 2015. {{cite book}}: Invalid |ref=harv (help)

External links

• Works by or about Johannes Paulus Lotsy at the Internet Archive
• Nature obituary
• National Herbarium Nederland: Lotsy, Johannes Paulus