Australopyrum, Brachypodium, and Elymus (Gramineae) in Malesia

Brachypodium sylvaticum (Huds.) Beauv. has 1 species and 2 varieties in Malesia. Brachypodium longisetum Hitchc. is transferred to Elymus. The Australian genus Australopyrum (Tsvel.) Löve (Gramineae-Triticeae) is represented by a new species in New Guinea. The species is curious among grasses not only for having a thin seta at the end of the inflorescence rachis, which is unique among the Pooideae, but especially because of the uncinate awn on the glumes and lemmas. Lateral genetic transfer between families may be present. The latter two taxa represent a tribe (Triticeae) and genera thus far not recorded for the indigenous Gramineae of Malesia.