@article {40, title = {Diversity Patterns and Biomass of Epiphytic Bryophytes and Lichens Along an Altitudinal Gradient in the Northern Andes}, journal = {Annals of the Missouri Botanical GardenAnnals of the Missouri Botanical Garden}, volume = {80}, number = {4}, year = {1993}, pages = {928-960}, author = {Wolf, J.H.D.,} }