In the family Gramineae a new species is described in Aristida (A. papuana), while two species are reduced, A. diminuta to A. cumingiana and A. tenuisetulosa to A. holathera; in Deyeuxia a new species is described (D. echidnae) and a new combination made (D. pyramidalis); new combinations are made in Lachnagrostis (L. avenacea), Neyraudia (N. mezii), Oryza (O. minuta var. silvatica), Phragmites (P. vallatoria) and Saccharum (S. elegans). The identity and application of Poa amboinica L. is discussed.