Pollinia. | CXLIV. GRAMINES. 525 
or produced into a fine straight awn, 3rd thin and hyaline or deficient ; 
terminal or 4th ume a twisted and bent awn, contracted and flexuose 
or hyaline, dilated and 2.lobed at the base as in Andropogon. Palea 
sericeus and its allies, but the pedicellate spikelets are all except some- 
limes at the base of the spike fertile, which is never the case in 
ogon, 
The genus extends over tropical Asia and Africa, and of the five Australian species 
only one appears to be endemic. 
Third glume very small and hyaline or none. Awn con- 
tracted at the base into a narrow flexuose stipes. 
Spikes several, often numerous. Spikelets both pedicellate, 
2nd glume with a fine straight awn. Awn of the 
terminal glume long. 
Annual. Spikes ibto2m.log ^. . .. .e. ke Fo EE, 
Perennial. Spikes Jio b m lop 5... V Vs uS. ES diriiians 
Spikes 2 or 3. Spikelet sessile; 2nd glume not awned. 
1 wn of the terminal glume short and fine . . . . 3. P. fulva. 
Third glume not much shorter than the 2nd, thin and hya- 
line. Awn with a narrow hyaline 2-lobed dilatation 
" ed e base, ip 
1kes 3 to 4 in., spi TH s scarcely } in. 
4 o » DY ener ^ T ed Ug Me r o. . 4. P. tristachya. 
Spikes about 5 in., spikel arly 3 lines, awn 1 to 1 
a e e p» potere cau oae ree ae Mackinlayi. 
— 
e 
l. P. articulata, Zrin. in Mem. Acad. Petersb. ser. 6, iii. 
Closely allied to 2. irritans, but smaller and more slender and appa- 
rently annual, 6 in. to 1i ft. high. Leaves very narrow, flat or filiform. 
Spikes u ually ], sometimes numerous, slender, 1} to 2 in. long, 
i i in some species 
t 
iate uter glume obtuse, rather broad, faintly nerved, ciliate, 
2nd glume rather narrow, obtuse but the keel pro oa 
fine straight awn; 3rd glume deficient (or very mi wh or 
N. Australia. Port Essington, Armstrong ; Port Darwin, Schultz, n. 146. : 
Var. minor, Spikes 2 to 4, scarcely above 1 in. long. 
Queensland. Rockingham Bay, Dallachy. 
The species is also in the Malayan Archipelago. 
2. P. irritans, Beath.—Stems 2 ft. high or more. Leaves usually 
