Efrain de Luna, et al. 2000. Ordinal Phylogeny within the Hypnobryalean Pleurocarpous Mosses Inferred from Cladistic Analyses of Three Chloroplast DNA Sequence Data Sets: trnL-F, rps4, and rbcL. The Bryologist 103(2), pp. 242–256 [3]
Benjamin Merget and Matthias Wolf. 2010. A molecular phylogeny of Hypnales (Bryophyta) inferred from ITS2 sequence-structure data BMC Res Notes 3 320-322. [2]