Environmental Research DivisionArgonne National LaboratoryArgonne, IL 60439

Instituto de Ecologia y Sistematica, CITMA, Carr. de Varona km 3.5, Capdevila, Boyeros, A.P. 8029, C. de La Habana, 10800, Cuba

Instituto de Ecologia y Sistematica, CITMA, Carr. de Varona km 3.5, Capdevila, Boyeros, A.P. 8029, C. de La Habana, 10800, Cuba

Smithsonian Institute

Division of Plant and Soil Sciences West Virginia University

Division of Plant and Soil Sciences West Virginia University

University of Michigan Ann Arbor, MI

Finca San Martin, Agua Blanca Cuaca, Mondomo Colombia, South America

Usmen Road towards Nazareth, KM6, Cundinamarca Colombia, South America