56 THE FLORA OF THE NOETHERN TERRITORY. 



21. C. pygmceus, Bottb. — Upper Victoria River and Flinders River, ¥. v. 

 Mueller ; Charlotte Waters, GUes. 



2. C. rotundus, Linn. — Fifteen miles W. of Hugh R. McDonnell Ranges, 

 G. F. Hill (No. 153), 6/5/1911 ; 10 miles N. of Eva Downs, G. F. HiU (No. 519), 

 19/8/11. 



Recorded. Islands of the Gulf of Carpentaria, R. Brown ; Arnhem Land, 

 F. V. Mueller ; 



Nut grassier nut sedge, a noxious weed, useless in pastures, and trouble- 

 some in cultivation paddocks. 



23. C. scaber, Benth. — Gulf of Carpentaria, R. Brown. 



24. G. sporobolus, R. Br. — Islands of the Gulf of Carpentaria, R. Brown ; 

 N.W. Coast, Hughan ; Upper Victoria River, F. v. Mueller ; Port Darwin, 

 Schultz (No. 791) ; Sweers Island, Henne. 



25. C. squarrosus, Linn. — Dampier's Archipelago, Walcot ; Gulf of 

 Carpentaria, F. v. Mueller. 



26. — C. subulatus, R. Br. — ^Alice Springs, Giles. 



27. C. malaccensis, Lam. (C. tegetiformis, Benth). — Lower Victoria 

 River, F. v. Mueller. 



28. 0. trinervis, B. Br. — Islands of the Gulf of Carpentaria, R. Brown ; 

 M'Adam Range and Fitzmaurice River, F. v. Mueller ; Port Darwin, Schultz, 

 (No. 313) ; between Norman and Gilbert Rivers, Gulliver. 



29. G. vaginatus, B. Br. — ^Nichol Bay, F. v. Mueller ; lagoons Flinders 

 River, F. v. Mueller. 



G. tenuiflorus, Bott. ; C. lucidiis, B. Br. ; C. pennatus, Lam. ; G. 

 stoloniferus, Betz. ; recorded in National Herbarium Census from North 

 AustraUa. G. castaneits, Willd. (see Hamilton, appendix I.). 



3. FUIRENA, l;iNN. 



Leaves glabrous. Glumes shortly pointed. Hypogynous scales contracted 

 at the base, but sessile or nearly so, without bristles. — 2. F. umbellata. 



Leaves pubescent or at least ciliate. Glume points long, often recurved. 

 Hypogynous scales cordate at the base, stipitate, usually alternating with 

 bristles. — 1. F. glomerata. 



1. F. glomerata, Linn. — Darwin, C. E. F. Allen (No. 171), March, 1914 ; 

 Lander Creek, G. F. Hill (No. 302), 10/6/1911 ; Borroloola, G. F. Hill (No. 610), 

 9/10/11. 



Recorded. Upper Victoria River and Providence Hill, F. v. Mueller ; 

 Port Darwin, Schultz (Nos. 266, 282) ; between Norman and Gilbert Rivers, 

 Gulhver. 



2. F. umbellata, i?o«6.— Batchelor Farm, C. E. F. Allen (No. 218), 

 August, 1914. 



Recorded. Providence Hill and sources of the Bright River, F. v. Mueller. 



4, SCIRPUS, Linn. 



Section I. Isolepis. — No hypogynous bristles. Small or slender plants 

 (except S. articulatus). 



Spikelets small, in numerous dense heads, almost radical in a tuft of grass 

 like filiform involucral bracts. — 3. S. huraillimus. 



Spikelets solitary or clustered, small (1 to 2 lines), ovoid or ovoid-oblong, 

 terminal or nearly so. Style-branches 3, rarely 2.- — 5. S. squarrosus. 



