@book{21034, author = {Ulloa Ulloa, Carmen, and Jorgensen, Peter Moller.}, title = {Arboles y Arbustos de los Andes del Ecuador /}, publisher = {Aarhus University, Department of Systematic Botany,}, year = {1993}, series = {AAU reports;}, address = {Aarhus :}, note = {Published in collaboration with Departmento de Ciencias Biologicas, Pontificia Universidad Catolica del Ecuador, Quito.} }