Systematics Chapter 26 Zamia lindleyi: A Misunderstood Species from the Highlands of Western Panama Michael A. Calonje, Alberto S. Taylor Blake, Dennis Wm. Stevenson, Gregory Holzman, and Yan Arley Ramos Abstract • 419 Resumen • 420 Introduction • 420 Materials and Methods • 421 Warszewicz’s Route • 423 Warszewicz’s Measurements • 425 Comparing Dietrich’s Description to the Plants from Fortuna Reserve • 426 Taxonomic Treatment • 428 Comparison of Zamia chigua and Z. lindleyi • 430 Acknowledgments • 436 Literature Cited • 436 Abstract Historical, geographical, and biological evidence are presented to support Zamia lindleyi Warsz. ex A. Dietrich as a recognized species, currently extant in the highlands of western Panama and quite distinct from Z. chigua Seem. from the lowlands of the Chocó, Colombia.