Taxon - Links and literature
Piippo, S. (1996): Notes on Chinese Geocalycaceae (Hepaticae). 1., Ann. Bot. Fennici 33: 45–49. [as Heteroscyphus planus]
Söderström L. et al. (2016): World checklist of hornworts and liverworts, PhytoKeys 59: 1–828 [as Heteroscyphus planus (Mitt.) Schiffn.]Data retrieved on: 1 April 2020