Recent collections from New Guinea contained grasses which could only be referred to the genus Pheidochloa S. T. Blake (Proc. Roy. Soc. Queensl. 56, 1945, 20), a monotypic genus so far only known from North Australia and Queensland. The genus seems closely related to Eriachne R. Br., but differs from it by the very unequal glumes, the subterete florets with a deep longitudinal furrow formed by the strongly involuted margins of the lemma, the slender and acute callus, and a cylindric caryopsis.