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 Polytaenium cajenense (Desv.) Benedict, Bull. Torrey Bot. Club 38(4): 169. 1911 . = Antrophyum cajenense (Desv.) Spreng., Syst. Veg. [Sprengel] 4(1): 67. 1827 . Range: —Greater Antilles; southern Mexico to Bolivia (BE, CO, LP, PA, SC), and Brazil . Ecology: —Common; pendent epiphyte in humid forests; 150–2050 m . The species has been observed to host ants below and around the rhizome and root mat ( León & Young 2010 ). This may benefit the fern by providing nutrients carried in by the ants.