1. School of Anthropology and Conservation Marlowe Building University of Kent Canterbury Kent CT27NR United Kingdom
2. Institute of Economic Botany The New York Botanical Garden Bronx NY 10458–5126 U.S.A.
3. People and Plants International P.O. Box 251 Bristol, VT 05443 U.S.A.
4. Centro de Investigaciones Tropicales‐Universidad Veracruzana Ex‐Hacienda Lucas Martín Privada de Araucarias s/n, Col. Periodistas C.P. 91019 Xalapa Veracruz Mexico
5. Instituto de Investigaciones Forestales Universidad Veracruzana, Parque Ecológico ‘El Haya’ Carretera antigua Xalapa‐Coatepec Xalapa Veracruz México