CXLIV. GRAMINED. 549 
ot quite always a central nerve, and being q OR  poliabiy a glume on the axis 
of the spikelet and not a palea on the axis of the r, although, when the flower 
is apparently terminal, the two axes being med ui ed into one cannot be distin- 
ain 
angle fringe with a line of hairs whol appears ic aridis a sce iunt and never 
rue i 1 i i 
ing often very faint at b whilst on each side is more — ous and 
reaches the apex. In all the other rond c central sare is very distinct. 
38. LEERSIA, Swartz. 
(Asprella, Ram. and Schult.) 
Spikelets 1-flowered, rae articulate on short pedicels along the 
filiform branches of a terminal panicle. Glumes 2, complicate and 
pale 
1n species not Australian 3 or fewer. Styles pth distinct Grain 
pei in the slightly hardened glumes, free from 
ye small genus, spread over the tropical and temperate regions ee the globe, the 
only Australian species common to the New and the Old World. 
andra, Swartz. ; Kunth, Enum. i. 6—An erect though 
weak ahon grass, attaining several feet, often rooting in the mud at 
the lower nodes. psi rather narrow, flat when fresh, mostly erect. 
Panicle oblong, 2 to 4 n. long, with erect or slightly spreading filiform 
flexuose branches. Spikelets narrow-ovate, about 12 lines long. Glumes 
nembranous, acute, the outer one with a prominent nerve on each 
side besides the marginal one; the inner glume nearly as long, but 
narrower, with only one nerve on each side near the margin. 
Stamens 6.— 7. australis, R. Br. Prod. 210; Asprella — Rom. 
and Schult. Syst. ii. 267 ; L. mezicana, Kunt h, Rev. Gra 
Diss O Shane Keppel Bay, R. Brown ; Port Curtis, prep peti mpto 
O'Shanesy; Brisbane River, Mares. Bay, F. Mueller, Leichhardt snd 
N. s. Wales. Port Jackson, R. Brown. 
39. ORYZA, Linn. 
Spikelets 1-flowered, flat, articulate on short pedicels or sessile along 
the flexuose branches of a terminal panicle. Glumes 4, 2 outer ones 
o 2-nerved pal tamens Styles short, distinet. 
ie ‘eh utes in the dened almost coherent upper glumes, but free 
nus of very few es from the warmer regions of the New and the 
oit Werl, te only Aus A n species of Old World origin, but in very general 
