Prodromus of a fern flora for Bolivia. XXVII. Pteridaceae Author Kessler, Michael Systematic Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland Author Smith, Alan R. University Herbarium, 1001 Valley Life Sciences Bldg. # 2465, University of California, Berkeley, CA 94720 - 2465 Author Prado, Jefferson Instituto de Botânica, Av. Miguel Estéfano, 3687, CEP 04301 - 902, São Paulo, SP, Brasil text Phytotaxa 2017 2017-12-22 332 3 201 250 http://dx.doi.org/10.11646/phytotaxa.332.3.1 journal article 10.11646/phytotaxa.332.3.1 1179-3163 Eriosorus ascendens A.R.Sm. & M.Kessler, Brittonia 59(2): 192, fig. 2E-F. 2007. = Jamesonia ascendens (A.R.Sm. & M.Kessler) Christenh., Phytotaxa 19: 20. 2011 . Range: —Endemic to Bolivia (CO, LP). Ecology:— Uncommon (known from five collections); edges of humid forests, roadsides; 2950–3250 m . Notes: —Unique in genus in having only glands on the axes and blades and lacking hairs. In general aspect, it is most similar to E. × flabellatus and E. hirtus , both of which are hairy.