Prodromus of a fern flora for Bolivia. X. Hymenophyllaceae 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 text Phytotaxa 2017 2017-11-21 328 3 201 226 http://dx.doi.org/10.11646/phytotaxa.328.3.1 journal article 10.11646/phytotaxa.328.3.1 1179-3163 Trichomanes elegans Rich., Actes Soc. Hist. Nat. Paris 1: 114. 1792 . = Davalliopsis elegans (Rich.) Copel., Philipp. J. Sci. 67(1): 82. 1938 . Range: —Lesser Antilles; Nicaragua to Bolivia (BE, CO, LP) and Brazil . Ecology: —Uncommon to locally fairly common; terrestrial and saxicolous, in humid forests, often in ravines on rocks, rarely epiphytic or on fallen logs, often growing with Abrodictyum rigidum ; to 1300 m . Notes: —The iridescent blue-green sheen on living plants is caused by thin layers surrounding the chloroplasts; these layers transmit photosynthetically efficient red light and reflect blue light ( Moran 2004 ). This is an adaptation to poor light conditions in the forest understory.