HEINRICHS, J.; DONG, S.; SCHÄFER-VERWIMP, A.; PERALTA, D. F.; FELDBERG, K.; SCHMIDT, A. R.; SCHNEIDER, H. Towards a Monophyletic Classification of Lejeuneaceae II: Subtribes Pycnolejeuneinae and Xylolejeuneinae Subtr. nov., Transfer of <em>Otolejeunea</em> To Lepidolejeuninae, and Generic Refinements. Phytotaxa 2014, 163, 61–76.