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Thirty-five species of the liverwort genus Bazzania are recognised from Australia, including eleven endemics. The greatest diversity is in the Australian Wet Tropics bioregion in northern Queensland, where 28 species are known to exist. Keys to northern and southern Australian species are provided, and each species is described and illustrated. Bazzania uncigera (Reinw., Blume & Nees) Trevis. is newly reported for Australia.

Bazzania scalaris sp. nov. (Marchantiophyta : Lepidoziaceae), a liverwort from the East Sepik District of Papua New Guinea, is described. The unpublished name 'Mastigobryum linearifolium' in Franz Stephani's Icones is recognised as this species.

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Sorapilla Spruce & Mitt. is a taxonomically problematic genus of mosses. In this paper one of the two known species, Sorapilla papuana Broth. & Geh., is described and illustrated in detail for the first time, and its morphological peculiarities are discussed. It is monoicous, rather than dioicous as had been assumed. The presence of an annulus on the capsule and sparse hairs on the calyptra, both suggested previously, are confirmed. Paraphyllia, which had been reported for Sorapilla, are not present. The phylogenetic position of Sorapilla remains uncertain.