1 2 3 Anthony John Edwin Smith, Ruth Smith (2004) The moss flora of Britain and Ireland. Cambridge University Press p.143
1 2 Goffinet, B., W. R. Buck & A. J. Shaw. (2008) "Morphology and Classification of the Bryophyta", pp. 55-138 in Goffinet, B. & J. Shaw (eds.) Bryophyte Biology, 2nd ed. (New York: Cambridge University Press). ISBN 9780521872256
↑ Goffinet,Bernard;William R. Buck(2004).“Systematics of the Bryophyta (Mosses): From molecules to a revised classification”.Monographs in Systematic Botany.Molecular Systematics of Bryophytes(Missouri Botanical Garden Press)98: 205–239.ISBN1-930723-38-5.