"Fritillaria Meleagris: Chiasma-formation and Distribution" by Newton, C.F, 1930, Box: 2, Folder: 15. Personal papers of John "Jack" A. Weir, PP 404. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/261237 Accessed May 15, 2024.