Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae Author Kessler, Michael Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland Author Moran, Robbin C. New York Botanical Garden, 2900 Southern Blvd., Bronx, New York, 10458 - 5126, USA Author Mickel, John T. New York Botanical Garden, 2900 Southern Blvd., Bronx, New York, 10458 - 5126, USA Author Matos, Fernando B. Universidade Federal do Paraná, Departamento de Botânica, Caixa Postal 19031, 81531 - 980, Curitiba, PR, Brasil Author Smith, Alan R. Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland & University Herbarium, 1001 Valley Life Sciences Bldg. # 2465, University of California, Berkeley, CA 94720 - 2465, USA & Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland text Phytotaxa 2018 2018-06-11 353 1 448 450 http://dx.doi.org/10.11646/phytotaxa.353.1.1 journal article 10.11646/phytotaxa.353.1.1 1179-3163 13706233 Elaphoglossum amazonicum Atehortúa ex Mickel, Fieldiana, Bot. , n.s., 27: 122. 1991 . ( Fig. 19F–J ) Range: — Peru , Bolivia (BE, CO, LP, SC), and western Brazil . Ecology: —Common; epiphytic and terrestrial in humid forests; 490–1200 m . Notes: —Often confused with E. raywaense , from which it differs by the characters given in the key. Additionally, E. raywaense is never terrestrial and its mature leaves are usually smaller than those of E. amazonicum (15–65 × 2.5–6 vs. 45–96 × 5–10 cm ). The distinctness of this taxon was first recognized by Underwood, who annotated a gathering from Bolivia ( Williams 1027 , GH, NY) as E. williamsii Underw. , but never published that name.