Prodromus of a fern flora for Bolivia. XXVI. Dennstaedtiaceae Author Schwartsburd, Pedro B. Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Av. P. H. Rolfs s. n., Viçosa, MG, Brazil, CEP 36570 - 900 Author Navarrete, Hugo Herbario QCA, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Quito, Ecuador. Author Smith, Alan R. University Herbarium, 1001 Valley Life Sciences Bldg. # 2465, University of California, Berkeley, CA 94720 - 2465 Author Kessler, Michael Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland text Phytotaxa 2017 2017-12-22 332 3 251 268 http://dx.doi.org/10.11646/phytotaxa.332.3.2 journal article 10.11646/phytotaxa.332.3.2 1179-3163 Dennstaedtia glauca (Cav.) C.Chr. ex Looser, Rev. Hist. Geog. Chile 69: 184. 1932 . Range:— Peru , Bolivia (CO, LP), Chile , and Argentina ( Yañez et al . 2014 ). Ecology:— Fairly common; terrestrial in semihumid forests, especially high-elevation forests dominated by Polylepis Ruiz & Pav. , Alnus Mill. , Weinmannia L., or Podocarpus L’Hér. ex Pers. ; 1700–3600 m . Notes:— Tryon & Stolze (1989) and Yañez et al . (2014) pointed out that slightly pubescent specimens of Dennstaedtia cicutaria could be misidentified as D. glauca , given the similarities in relation to the degree of division of the lamina. They mentioned that a useful character to differentiate both species is the position of the sori: in D. glauca , they are displayed at the margin of the foliar lobes, while in D. cicutaria they are located at the sinuses. Additionally, in the latter species, the petioles are brownish to black and bear abundant roots, whereas in D. glauca the petioles are stramineous and no or very few roots are present.