Targionia hypophylla 20100424a detalle.jpg
Taxonomy database of the U.S. National Center for Biotechnology Information
Global Biodiversity Information Facility
United States Department of Agriculture Plants Database
Interim Register of Marine and Nonmarine Genera
Open Tree of Life reference taxonomy version 3.2
Phylogeny and classification of the Marchantiophyta
Species Plantarum. 1st Edition, Volume 2