13 



49. P. bioolor R. Br. 



Lennard, Isdell, and Chamley Rivers (W.V.F.). 

 In black and sandy loams. 



50. P. polyphyllum R. Br. 



May, Meda, Lennard, Fitzroy, Barker, and IsdeU Rivers 



(W.V.F.). 

 In moist sandy loam. Spikelets silky ; no palea within the 



3rd glume ; panicle broad with fihform pedicels. 



51. Setaria macrostachya H. B. et K. 



Gascoyne River (Polak) ; Wingrah Pass, Napier Range, 

 Lennard and Isdell Rivers ; Packhorse Range, Wyndham 

 (W.V.F.). 



Among rocks and in their crevices. 



52. Pennisetum arnhemioum F. v. M. 



King Sound District (Froggatt) ; Wingrah Pass, Napier 



Range, Lennard River (W.V.F.) 

 In moist sandy soil. 



53. P. compressum R. Br. 



Fitzroy River, above Upper Liverynga Station (W.V.F. ). 

 In black soil. 



54. Chamaeraphis spinescens Poiret. 



Fortescue River (J. Forrest) ; Fitzroy River (W.V.F.). 

 In wet black soil. 

 Var. parvispicida Benth. 



May, Meda, Lennard, Isdell, Barnett, and King Rivers (W.V.F.). 

 Stems running many yards in water. " Water-grass " — The 

 specimens are very close to C. gracile Haokel. 



55. Xeroehloa imberbis R. Br. 



Cygnet Bay (A. Cunn.) ; King Sound District (Froggatt) ; 



near Derby ; Cygnet Bay (W.V.F.). 



In dry sandy soil. 

 Var. repens W.V.F. 



Goody-Goody, nine miles from Derby (W.V.F.). 

 Stems creeping and rooting at the nodes ; rhachises muricate ; 



spikelets Smaller than those of the typic plant. 



56. X. barbata R. Br. 



May, Meda, Lennard, and Fitzroy Rivers ; Broome (W.V.F.). 

 In sandy loam. 



ORYZEiE. 



57. Oryza sativa L. 



May, Meda, Lennard, and Isdell Rivers (W.V.F.). 

 Cjespitose. 4-6ft. in height. " Wild Rice." In sandy spots. 



