314 
N. Terrrrory : Lake Amadeus, Giles. 
§. Ausrratia: Cudnaka,' Mueller!; Muda, Mitchell; near 
Lake Eyre, Andrews; and without precise locality, Stwart. 
N. S. Wares: Murrimbidgee River, Mueller. 
20. D. divaricatissima (R. Br.) Hughes nov. comb.; Panicum 
divaricatissimum R. Br. Prod. 192 (1810) ; PP, divaricatissimum 
var. glaberrimum Benth. Fl. Austral. vii. 468 (1878); P. divari- 
catissimum var. normale Benth. 1. c.; Leptoloma divaricatissima 
Chase in Proc. Biol. Soc. Wash. xix. 192 aii 
QUEENSLAND: Peak Downs, Burkitt. 
N. S. Wares: Boggy Plains of the i o: River, Mueller ; 
Keppel Bay and Port Jackson, Brown 6 
21. D. macractenia (Benth.) H ughes nov. comb.; Panicum 
macractenium Benth. Fl. Austral. vii. 468 (1878); Leptoloma 
macractenia Chase in Proc. Biol. Soc. Wash. xix. 192 (1906 
QUEENSLAND: Herbert’s Creek, Bowman !. 
N.S. Wares: Endeavour River, Banks and Solander. 
TI. Leptoloma Chase in Proc. Biol. Soc. Wash. xix. 192 (1906). 
‘L. papposa (R. Br.) Hughes nov. comb.; Panicum papposum 
R. Br. Prod. 192 (1810); Benth. Fl. ‘Austral. vii. 468. 
N. Territory: Arnhem South Bay, Brown 6120!. 
IV. Brachiaria Griseb. in Ledeb. Fl. Ross, iv. 469 (1853). 
Spikelets with a silky, transverse, apical fringe : 
Lower valve aristulate ; ore valve eg 
and mucronate 1. holosericea. 
Valves neither nciebilase nor tidvenciigtd 2. argentea. 
Spikelets glabrous, or eager pubescent, but 
with no distine ge: 
Rachis more or less triquetrous or filiform: 
lower valvule developed : 
Spikelets 3-5-4 mm. long; upper glume 
and lower valve usually 5-nerv 
ower glume 2 or more the length of the 
spikelet; lower valvule as long as its 
valve; spikelets pubescent - 3, ramosa. 
Lower glume } or less the length of the 
spikelet ; lower valvule about } as sper 
as its valve; spikelets glabrous - 4. polyphylla, 
Spikelets 5-6 mm. long; oe er and 
lower valve usually 9-nerved . 5, foliosa. 
Rachis more or less flat and ribbon like, - 
0-5-1 mm. wide; lower valvule obsolete: - 
Spikelets 5 mm. long, semen or ‘with » 
a small tuft of hairs at the age 
Spikelets 4 mm. long, Saito: - - - 
+> 6» piligera. 
. distachya. 
am - 
