TY - RPRT TI - Polyploidy and elevation contribute to opposing latitudinal gradients in diversification and species richness in lady ferns (Athyriaceae) AU - Wei, R. AU - Ree, R. H. AU - Sundue, M. A. AU - Zhang, X.-C. PY - 2018 DO - 10.1101/351080 UR - https://www.biorxiv.org/content/10.1101/351080v1 ID - 10.1101/351080 ER -