> [!cite] BHL link: this entry starts at [page 113](https://www.biodiversitylibrary.org/page/33266420) of TL-2 Suppl. III > Author links: [Wikidata](https://www.wikidata.org/wiki/Q123676362) QID Q123676362 > Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]] ### Author Broekens, Douwe Johannes (fl. 1925), Dutch geneticist, student of Hugo de Vries at the University of Amsterdam, Dr. phil. Amsterdam 1925. **Abbreviated name**: *Broekens* #### Herbarium and types Unknown. ### Publications ##### n.23.098. Über den Stammbaum der Onagraceae **Title** *Über den Stammbaum der Onagraceae*... Academisch proefschrift ter verkrijging van den graad van doctor in de wis- en natuurkunde aan de Universiteit van Amsterdam... Amsterdam (Drukkerij en Uitgeverij J.H. de Bussy) 1925. Oct. **Abbreviated title**: *Stammbaum Onagrac.* **Notes** *Publ*.: 13 Mai 1925 (date of defense thesis), p. \[i\]-viii, \[383\]-512, theses p. \[i-iii\]. *Copies*: B, HH, U. – Main part reprinted from Receuil Trav. bot. Néerl. 21: 383-512. 1924.