70 
P. triChoides, ^iy. ; Kimtli. Enum. i. 112; M. Austr. vii. 485. 
1, 7. 
P. Mitchelli, Benth.; PL Austr. vii. 489. 1, 7. 
OPLISMENUS, Beauv. - 
0. COmpositUS, Beauv. ; Agrostogr. 54 ; Fl. Austr. vii. 491. 
1. 2, 5, 7. 
SETAKTA, Beauv. 
S; glauca, Beauv. ; Kuntli. Enum. i. 149 ; El. Austr. vii. 492. 
Pigeon Grrass. 1, 7. 
LEPTA8PIS, P. Br. 
L. Banksii, B. Br. ; Prod. 211 ; El. Austr. vii. 548. 1, 7. 
lilPERATA, Cyr. 
I. arundinacea, Cyr. ; Kunth. Enum. i. 477 ; El. Austr. vii. 536. 
Blady Grrass. 1, 2. 
ELIONUEUS, Willd. 
E. Citreus, Munro; El. Austr. vii. 510. Lemon Grrass. 7. 
HETEHOPOGON, Pers. 
H. COntOrtUS, Boem. et ScliuU. ; Syst. ii. 386; El. Austr. vii. 517. 
Bunch Spear Grrass. 7. 
H. insigniS, Thiv. ; Enum. Ceyl. PI. 437; El. Austr. vii. 517. 
Tall Spear Grass. 1. 
CHRYSOPOGON, Trin. 
C. gryllus, Trin.; Eund. Agrost. 188, and in Mem. Acad. Petersb. 
ser. 6, ii. 317 ; El. Austr. vii. 536. 7. 
SORGHUM, Pers. 
S. plumosum, Beauv. ; Agrost. 132 ; El. Anstr. vii. 540. 1, 7. 
S. laxifloruiU, n. sp. 7. Decumbent, ascending to 2 or 3 feet, 
glabrous, except the inflorescence and a slight downiness about the 
nodes, stems somewhat compressed. Leaves narrow, tapering to 
filiform points; liguia short, scarious, but almost hidden in the longish 
hairs at the top of the sheath. Panicle nodding, somewhat secund, 
2 or 3 in. long, of few capillary branches never verticillate, solitary 
or in pairs and forked, each bearing usually 2 spikelets, the terminal 
one awned. Eertile spikelet scarcely 2 lines long, between two ciliate 
pedicels ; outer glume densely clothed with darJi-brown or at times 
light-brown hairs; second glume nearly glabrous, glossy, and of a 
very dark colour ; third glume hyaline ; awn over 1 in. long, much 
twisted in the lower half. 
The awns of tliis Mulgrave Eiver grass remind one of the Bunch Spear Grass 
by the manner in which they twist into knots, but it is a much more dehcate grass. 
In inflorescence it approaches Chrfjsopogon, but the glumes are those of a Sorghum. 
POGONATHERUM, BeauT. 
P. SaCCharoideiim, Beauv.; Benth. Hongk. El. 421. 2, 3. 
ANTHISTIRIA, Linn. 
A. Ciliata, Linn.; Kunth. Enum. i. 481; El. Austr. vii. 542. 
Kangaroo Grass. 1, 2, 7. 
