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 Adiantum patens Willd., Sp. Pl. , ed. 4 [Willdenow], 5(1): 439. 1810. Range: — Mexico to Panama ; Colombia and Venezuela to Bolivia (CO, LP); Brazil ; Africa. Ecology: —Rare (4 collections known), terrestrial in montane forests; 200–1300 m . Notes: —Within the group of Adiantum raddianum ( Sundue et al . 2010 , Hirai et al . 2016 ), but distinguished by the rachises usually with dense indument of hairs or with just a few hairs to ca. 0.1 mm ; blades 2-or 3-forked and pedate at bases, 3-or 4-pinnate proximally and 2-pinnate distally; pinnules 2 times longer than wide, on both surfaces with glandular hairs, margins of sterile pinnules incised to lobate, serrate; indusia lunate to reniform or rounded, glabrous.