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Johannes Paulus Lotsy
Johannes Paulus Lotsy
Born	11 April 1867 Dordrecht
Died	17 November 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 or Jan Paulus Lotsy (11 April 1867 – 17 November 1931) was a Dutch botanist, specializing in evolution and heredity. He promoted the idea of evolution being driven by hybridization.

Career

Lotsy was born into a wealthy family in Dordrecht and went to study at the Wageningen Agricultural College where his teachers included Martinus Beijerinck and then at the Göttingen University (1886-1890) where he studied lichens for his doctorate. He then went to Johns Hopkins University (1891–1895) as a lecturer and also served as director of the herbarium. From 1896 to 1900 he was sent to Java to work on cinchona research. He returned after suffering from malaria and then 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.

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

Lotsy died at Voorburg following a surgery.

Travels

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.
  • I. Algen und Pilze (Thallophyta) Jena: Gustav Fischer, 1907.
  • II. Cormophyta Zoidogamia Jena: Gustav Fischer, 1909.
  • III. Lotsy, J. P. (1911). Vorträge über botanische stammesgeschichte, gehalten an der Reichsuniversität zu Leiden. Ein lehrbuch der pflanzensystematick. III Cormophyta Siphonogamia (in German). Jena: G. Fischer.

System

Lotsy argued that the monocotyledons were diphyletic, with the Spadiciflorae being derived from the dicotyledons (specifically Piperales) and the remainder from a hypothetical ancestor, the Proranales. Hutchinson, who argued for a monophyletic origin, considered this improbable.

Synopsis

Vorträge über botanische Stammesgeschichte

• Volume 3: Cormophyta Siphonogamia Part 1
  • Monocotyledons vol 3(1) p. 514–564, 625–864
    • Spadiciflorae p. 514–564
      • Araceae
      • Lemnaceae
      • Cyclanthaceae
      • Palmaceae
      • Pandanaceae
      • Sparganiaceae
      • Typhaceae
      • Alismataceae
      • Butomaceae
      • Hydrocharitaceae
      • Scheuchzeriaceae
      • Zosteraceae
      • Posidoniaceae
      • Aponogetonaceae
      • Potamogetonaceae
      • Najadaceae
      • Altheniaceae
      • Cymodoceaceae
      • Triuridaceae
    • Enantioblastae p. 693-714
      • Commelinaceae
      • Mayacaceae
      • Xyridaceae
      • Eriocaulaceae
      • Centrolepidaceae
      • Restionaceae
      • Pontederiaceae
    • Liliifloren p. 715–766, 792–834
      • Liliaceae 714
      • Melanthiaceae 717
      • Asphodelaceae 722
      • Aloinaceae 725
      • Eriospermaceae 730
      • Johnsoniaceae 731
      • Agapanthaceae 732
      • Alliaceae
      • Gilliesiaceae 734
      • Tulipaceae 735
      • Scillaceae 741
      • Asparagaceae 743
      • Dracaenaceae 749
      • Smilaceae 759
      • Luzuriagaceae 760
      • Ophiopogonaceae
      • Lomandraceae 761
      • Dasypogonaceae 763
      • Calectasiaceae 764
      • Juncaceae
      • Flagellariaceae 765
      • Stemonaceae (Roxburghiaceae) 792
      • Cyanastraceae 793
      • Iridaceae 794
        • Crocoideae
        • Iridoideae 796
        • Ixioideae 799
      • Haemodoraceae 800
      • Amaryllidaceae 801, 811
      • Hypoxidaceae
      • Vellosiaceae 802
      • Agavaceae 806
      • Bromeliaceae 814
      • Dioscoreaceae 823
      • Taccaceae 826
      • Burmanniaceen 829
    • Glumifloren p. 767–791
      • Cyperaceae
      • Graminaceae
    • Scitamineae p. 835–864
      • Musaceae
      • Cannaceae
      • Zingiberaceae
      • Marantaceae
      • Orchidaceae
  • Index p. 952

See also

• Category:Taxa named by Johannes Paulus Lotsy

References

1. Goddijn, W. A. (1931). "Dr. Jan Paulus Lotsy 1867–1931". Genetica. 13 (1–2): I–XX. doi:10.1007/BF01725036. ISSN 0016-6707. S2CID 41360495.
2. East, E. M. (1914). A Theory of Evolution. Botanical Gazette 58 (1): 91–93.
3. Newman, H. H. (1917). Evolution by Means of Hybridization by J. P. Lotsy. Botanical Gazette 63 (2): 153–154.
4. Lotsy, J. P. (1927). "What do we know of the descent of man?". Genetica. 9 (4–6): 289–328. doi:10.1007/BF01508294. ISSN 0016-6707. S2CID 38375736.
5. "Obituary. Dr J. P. Lotsy". Nature. 129 (3244): 14–15. 1932. doi:10.1038/129014a0. S2CID 4099551.
6. ^ Hutchinson 1959, pp. 513–515.
7. Lotsy 1911.
8. International Plant Names Index.   Lotsy.

Bibliography

• Hutchinson, John (1959). The families of flowering plants, arranged according to a new system based on their probable phylogeny. 2 vols (2nd ed.). Macmillan., Volume 2 at Internet Archive
• Works by or about Johannes Paulus Lotsy at the Internet Archive
• Nature obituary
• National Herbarium Nederland: Lotsy, Johannes Paulus

External links

v t e List of systems of plant taxonomy
This is a selected list of the more influential systems. There are many other systems, for instance a review of earlier systems, published by Lindley in his 1853 edition, and Dahlgren (1982). Examples include the works of Scopoli, Ventenat, Batsch and Grisebach.
Pre-Linnaean John Ray system (1686–1704) A discourse on the seeds of plants Methodus plantarum nova De Variis Plantarum Methodis Dissertatio Brevis Methodus plantarum emendata et aucta
Pre-Darwinian Linnaean system (1735–51) Systema Naturae Species Plantarum Genera Plantarum Philosophia Botanica Adanson system (1763) Familles naturelles des plantes De Jussieu system (1789) Genera Plantarum, secundum ordines naturales disposita juxta methodum in Horto Regio Parisiensi exaratam De Candolle system (1819–24) Théorie élémentaire de la botanique, ou exposition des principes de la classification naturelle et de l'art de décrire et d'etudier les végétaux Prodromus systemati naturalis regni vegetabilis sive enumeratio contracta ordinum, generum specierumque plantarum huc usque cognitarum, juxta methodi naturalis normas digesta Berchtold and Presl system (1820–1823) O Prirozenosti Rostlin Agardh system (1825) Classes Plantarum Gray system (1821) The Natural Arrangement of British Plants Perleb system (1826) Lehrbuch der Naturgeschichte des Pflanzenreichs Dumortier system (1829) Analyse des familles des plantes Lindley system (1830–45) An Introduction to the Natural System of Botany The Vegetable Kingdom Don system (1834) General History of Dichlamydious Plants. Bentham & Hooker system (1862–83) Genera plantarum ad exemplaria imprimis in herbariis kewensibus servata definita. Baillon system (1867–94) Histoire des plantes
Post-Darwinian (Phyletic) Nineteenth century Eichler system (1875–1886) Blüthendiagramme: construirt und erläutert Syllabus der Vorlesungen über Phanerogamenkunde Engler system (1886–1924) Führer durch den Königlich botanischen Garten der Universität zu Breslau Die Natürlichen Pflanzenfamilien Syllabus der Pflanzenfamilien Das Pflanzenreich van Tieghem system (1891) Traité de botanique Twentieth century Dalla Torre & Harms system (1900–07) Genera Siphonogamarum, ad systema Englerianum conscripta Warming system (1912) Haandbog i den systematiske botanik Hallier system (1912) L'origine et le système phylétique des angiospermes Bessey system (1915) The phylogenetic taxonomy of flowering plants Wettstein system (1901–35) Handbuch der systematischen Botanik Lotsy system (1907–11) Vorträge über botanische Stammesgeschichte, gehalten an der Reichsuniversität zu Leiden. Ein Lehrbuch der Pflanzensystematik. Hutchinson system (1926–73) The families of flowering plants, arranged according to a new system based on their probable phylogeny Calestani system (1933) Le origini e la classificazione delle Angiosperme Kimura system (1956) Système et phylogénie des monocotyledones Emberger system (1960) Traité de Botanique systématique Melchior system (1964) Syllabus der Pflanzenfamilien Takhtajan system (1966–97) A system and phylogeny of the flowering plants Flowering plants: origin and dispersal Diversity and classification of flowering plants Cronquist system (1968–81) The evolution and classification of flowering plants An integrated system of classification of flowering plants Goldberg system (1986–89 Classification, Evolution and Phylogeny of the Families of Dicotyledons Dahlgren system (1975–85) The families of the monocotyledons: structure, evolution, and taxonomy Thorne system (1968–2000) An updated phylogenetic classification of the flowering plants Kubitzki system (1990–) The Families and Genera of Vascular Plants Reveal system (1997) Reveal System of Angiosperm Classification
Angiosperm Phylogeny Group System (1998–) An ordinal classification for the families of flowering plants (APG I) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III Chase & Reveal System (2009) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV Angiosperm Phylogeny Website
See also Plantae at Wikispecies •

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