LaDema Mary Langdon (5 January 1893 – April 1977) was an American botanist known for her work on floral anatomy, taxonomy, embryology, and morphology of Juglandaceae, Fagaceae, Cycas, and Dioon spinulosum. She was a member of the American Association for the Advancement of Science and was a professor at Baltimore Junior College and Goucher College. She earned her bachelor's degree from Oberlin College and her graduate degrees from the University of Chicago.[1]
LaDema Langdon | |
|---|---|
| Born | January 3, 1893 |
| Died | April 1977 |
| Nationality | American |
| Alma mater | Oberlin College, University of Chicago |
| Known for | floral anatomy |
| Scientific career | |
| Institutions | Baltimore Junior College, Goucher College |
| Patrons | National Research Council, American Philosophical Society |
Langdon's research focused on the stem anatomy of Cycas and Dioon spinulosum as well as the anatomy and taxonomy of floral species such as the family of Juglandaceae and Fagaceae.[1] While the cycas species was previously investigated, Langdon's research was the first to investigate its growth rings.[2] In a study, she also described the anatomy of the packing tissue of the genus Carya.[3] Her works were funded by grants from the National Research Council and the American Philosophical Society.[1]
Publications
edit- The Ray System of Quercus Alba (1918)[4]
- Anatomy of seedling buds of Quercus (1927)
- Embryogeny of Carya and Juglans, A Comparative Study (1934)
- Ontogenetic and anatomical studies of the flower and fruit of the Fagaceae and Juglandaceae (1939)
References
edit- ^ a b c Ogilvie, Marilyn Bailey; Harvey, Joy Dorothy (2000-01-01). The Biographical Dictionary of Women in Science: L-Z. Taylor & Francis. ISBN 9780415920407.
- ^ Langdon, LaDema (1920). "Stem Anatomy of Dioon Spinulosum". Botanical Gazette. 70 (2): 110–125. doi:10.1086/332720. S2CID 84916493 – via The University of Chicago Press.
- ^ McCann, Lewis (October 15, 1942). "Development of the Pistillate Flower and Structure of the Fruit of Tung (Aleurite Fordii)". Journal of Agricultural Research. 65 (8): 362.
- ^ Langdon, LaDema M. (1918-04-01). "The Ray System of Quercus alba". Botanical Gazette. 65 (4): 313–323. doi:10.1086/332245. ISSN 0006-8071. S2CID 85361250.