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 productum Rosenst., Repert. Spec. Nov. Regni Veg. 6: 315. 1909 . ( Fig. 48E–H ) Range: —Venezuelan tepuis; Andes of Venezuela , Colombia , Ecuador , and Bolivia (BE, CO, LP); to be expected in Peru . Ecology: —Uncommon; epiphytic in humid forests; (300–) 700–1750 m . Notes: —The rhizomes are more compact and the rhizome scales are longer and paler than in E. buchtienii or E. dolichopus . The divided blade scales are reminiscent of those of E. glaucescens and E. subarborescens , but these have brown blade scales and narrower leaves with relatively longer petioles. Specimens of E. productum from lower elevations ( 300–450 m ) have thinner blade texture, longer petioles, and shorter rhizome scales, and may represent a distinct species.