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 Pellaea sagittata (Cav.) Link, Fil. Sp. 60. 1841. Range: —Central Mexico to Colombia and Bolivia ( CH , LP). Ecology: —Rare; terrestrial and saxicolous in semiarid regions, on dry banks, among rocks or on stone walls; 1700–3000 m . Notes: —Rhizomes compact; rachises straight; scales on petiole bases and rachises concolorous, tan; ultimate segments ovate-deltate. Pellaea cordifolia (Sessé & Mociño) A.R.Sm. , from southwestern U.S.A. and Mexico , has historically been treated as a variety of P. sagittata (by Tryon 1957 ), in which case the Bolivian taxon becomes var. sagittata . Evidence suggests that both of these species may be more closely related to Astrolepis than to Pellaea (Schuettpelz et al . 2007, Eiserhardt et al . 2011 ).