Molecular Data From Herbarium Specimens Reveal A Potential Extirpation of Azolla microphylla From California
Michael J. Song, Abbey Schedler, Griffin Wagner, Forrest D. Freund, Isaac L. Maarck, Carrie M. Tribble, Carl J. Rothfels, Pieter Johnson, Jenna Ekwealor
The paper analyzes molecular data from historical herbarium specimens and modern samples to assess the status of Azolla species in California, finding potential extirpation of Azolla microphylla.
bioRxiv · Oct 19, 2026 · PreprintEcology