Philippe Édouard Léon Van Tieghem

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Philippe Édouard Léon Van Tieghem (1839–1914)

Philippe Édouard Léon Van Tieghem (French pronunciation:

département of Nord.[1] He was one of the best known French botanists of the latter nineteenth century.[2]

Life

Van Tieghem's father was a textile merchant who died of

mushrooms. He is credited with creation of the eponymous "Van Tieghem cell", a device mounted on a microscope slide that allows for observing the development of a fungus' mycelium
.

In 1864 he earned his doctorate in

Académie des sciences, also in 1876.[1] Van Tieghem wrote extensively on the mistletoe family of Loranthaceae, with much of his taxonomic work surviving to the present day.[5][6][7][8] He died in Paris in 1914.[1]

Honours

He has been honoured in the naming of several plant taxa;[9] In 1890, botanist Pierre published Tieghemella a genus in the family Sapotaceae.[10] Then in 1959, R.K.Benj. published a genus of fungi as Tieghemiomyces (in the family Dimargaritaceae).[11]

In 1909 he was named a Commandeur of the Légion d'honneur in recognition of his contributions to botany.[12]

Selected publications

  • Recherches comparatives sur l'origine des membres endogènes dans les plantes vasculaires, 1889 - Comparative research on the origin of endogenous members of vascular plants.
  • Eléments de botanique, 1886 2nd. ed. 1891, 2 vols., 3rd. ed. 1898, 4 vols. 5th ed. 1918 (Elements of botany)
  • Traité de botanique 1884, 2nd ed. 1891
  • L'Oeuf des Plantes considéré comme base de leur Classification, 1901.
  • Nouvelles observations sur les Ochnacées, 1903 - New observations on Ochnaceae.
  • Sur les Luxembourgiacées, 1904 - On Luxemburgiaceae.
  • Travaux divers: Pistil et fruit des Labiées, Boragacées et des familles voisines: Divers modes de Placentation: Anthères hétérogènes. : Une graminée à rhizome schizostélique: A propos de la Strasburgérie, 1907 - Diverse works, Pistil and fruit of
    Labiatae, Boraginaceae, etc.[13]

System

Van Tieghem's primary grouping was into embranchements (branches), followed by sous-embranchement (sub-branches), classes, orders, families, genera, species and varieties.

His four branches (1st edition) were, as follows, with the Phanerogames divided into two sub-branches. The angiosperms contain two classes, Monocotyledonés and Dicotyledonés;

  1. Thallophytes
  2. Muscinées (
    mosses
    )
  3. Cryptogames vasculaires
  4. Phanerogames
    1. Gymnospermes
    2. Angiospermes
      1. Monocotyledon
        és
      2. Dicotyledon
        és

He further divided the Monocotyledonés into four orders (ordres), based just on the presence or absence of a perianth and the position of the ovary, which in turn were divided into families (familles);[14][15] * Monocotyledonés,

    • Corolle nulle ovaire supère: Graminidées
    • Corolle sépaloïde ovaire supère: Joncinées
    • Corolle pétaloïde ovaire supère: Liliinées
    • Corolle pétaloïde ovaire infère: Iridinées

The Liliinées order contained five families;

  1. Alismacées
  2. Commelinacées
  3. Xyridacées
  4. Pontederiacées
  5. Liliacées
The standard author abbreviation Tiegh. is used to indicate this person as the author when citing a botanical name.[16]

References

  1. ^ a b c d BNF 2015.
  2. ^ Isely 1994, pp. 225–226.
  3. ^ Nougarède 2008.
  4. Who Named It
  5. ^ Tieghem, P.E.L. van (1895) Bulletin de la Société Botanique de France 42: 25, 85, 175
  6. ^ Tieghem, P.E.L. van (1895). "Sur Les Loranthoidées De La Nouvelle-Zélande." Bulletin de la Société Botanique de France 42(1): 23-30
  7. doi:10.1080/00378941.1895.10830580
    .
  8. ^ Tieghem, P.E.L. van (1895). "Sur Le Groupement Des Espèces En Genres Dans Les Loranthées A Calice Dialysépale Et Anthères Oscillantes Ou Struthanthées." Bulletin de la Société Botanique de France 42(2): 161-180
  9. S2CID 246307410
    . Retrieved January 27, 2022.
  10. ^ "Tieghemella Pierre | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 30 November 2022.
  11. ^ "Species Fungorum - Search Page". www.speciesfungorum.org. Retrieved 30 November 2022.
  12. ^ République Français (March 7, 2023). "VAN TIEGHEM, Philippe Edouard Léon". Base de données Lénore.
  13. ^ Sociétés savantes (publications)
  14. ^ Van Tieghem 1884, p. 1340.
  15. ^ Dahlgren & Clifford 1982, p. 3.
  16. ^ International Plant Names Index.  Tiegh.

Bibliography

External links

Scholia has a profile for Philippe Édouard Léon Van Tieghem (Q2421500).
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