321 
Panicle very scanty and sparingly 
branched ; lower glume half as pitas 
as the spike let 
Lower glume less than half as dhe as 
the spikelet : 
Spikelets 3-4 mm. long : 
Panicles up to 40 cm. long; 
spikelets subsessile, set obliquely 
and crowded on the short second- 
ary branchlets of the panicle —- 
Panicles up to about 20 em. long; 
spikelets not arranged as in P. 
cymbiforme : 
Spikelets slender; pedicels like 
the panicle branches, ae and . 
extremely fine - 
Spikelets plump ; palin gaa 
panicle branches short and 
somewhat stout, crowded - 
Spikelets 2 mm. long - - 
ae ee not gaping and abeindaey or 
if at all dorsally 
Lower Slane As 3 the length of the 
spikelet, prominently 5—7-nerved : 
Panicle branches fine, flexuose, few- 
flowered; pedicels capillary, up to 
1-5 cm. long, (e descr.) - 
Panicle branches rather 
3. fulgidum. 
4. cymbiforme. 
Or 
. capillipes. 
. aroides. 
. sarmentosum. 
aS 
8. simile. 
rigi 
pedicels short and comparatively 
stout : 
Compactly caespitose, 1-2-noded ; 
spikelets 4-2-4-5 mm. long ; lower 
glume acutely aeaninate - < 
lower glume contacted in the 
middle, "obtuse - - 
Lower glume scarcely over half the 
length of the spikelet, usually short 
truncate or subacute with the lateral 
nerves not prominent, often rudimen- 
tary or wanting : 
t Culms few to many-noded, tufted, 
erect, never prostrate or creeping : 
Panicle large, stiffly spreading, 
hardly exceeding the broad upper- 
‘most leaf; stems stout, seml- 
aquatic, compressible : my 
Lateral branchlets remaining 
approximate to the branches, 
x 20643 
9. queenslandicum. 
10. prolutum. 
