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 digitatum Hook., Sp. Fil. 2: 38. 1851 . Range: — Ecuador to Bolivia ( CH , CO, LP SC, TA); Argentina , Brazil , and Uruguay . Ecology: —Fairly common, terrestrial on steep and shady slopes near river margins; 1100–2900(–3400) m. Notes: —Seemingly an isolated species, mostly closely related to the Brazilian A. subcordatum Sw. Blades 3- pinnate; pinnules digitate (deeply incised), flabellate, not articulate, bases broadly cuneate, stalked, stalks 0.3–0.7 cm long; rachises pilose, hairs whitish brown; pinnules with scattered hairs on both surfaces and margins, terminal pinnae similar to lateral ones, sterile margins denticulate.