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 macrophyllum Sw., Prodr. 135. 1788. Range: — Mexico to Panama , Antilles; Colombia to Trinidad , Guianas, and Bolivia (CO, LP, SC); Argentina and Brazil . Ecology: —Fairly common, terrestrial in wet and semideciduous forests; 400–1500(–2450) m. Notes: —A widespread, very distinctive, and probably isolated species; occasionally seen in cultivation. Unusual in the reddish young fronds and strictly opposite pinnae. Rhizomes short-creeping, nodose; rachises glabrous; blades 1-pinnate; pinnae ovate-deltate, subsessile or stalked 1–2 mm , glabrous, terminal pinna conform, sterile margins serrulate; sori 2 per pinna, borne on acroscopic and basiscopic margins, absent at bases and apices of pinnae; indusia linear, glabrous.