Lepturus.] CXLIV. GRAMINE. « 669 
and a hermaphrodite flower, the rhachis of the spikelet shortly con- 
tinued at the back of the palea and bearing a small thin hyaline empty 
glume.— Brongn. in Duperr. Voy. Bot. 57,t. 16 
N. Australia. Arnhem N. Bay and Islands of the Gulf of Carpentaria, R. 
Brown ; Port Darwin, Schultz, n. 227. 
: Queensland. Bird Islet, Wreck Reef, Denham ; Raine Island, Cape York, 
Challenger Expedition. 
Also in the islands of the South Pacific. 
102. HORDEUM, Linn. 
flattened, tapering into straight awns or awnlike from 
Flowering glume inserted rather higher up, eonvolute round the flower 
with a straight terminal awn. Palea 2-ribbed. Ovary crowned by a 
tuft of hairs. Stigmas nearly sessile. 
genus of few species, mostly of Mediterranean origin, dispersed over the ee 
ATA 
perate and subtropical regions of both hemispheres. The two Aust 
species are both probably introduced although one at least is now abundantly 
ised. 
naturalis 
Outer empty glumes of the central spikelets more or less 
dilated and ciliate in the lower half . . . + . ° 
All the outer empty glumes subulate or awnlike from the 
base and not ciliate . 
1. H. murinum. 
2, H. nodosum. 
t Ld 
ke glumes all at the base of the short rhachis 
forming a kind of involuere round the flowering ones, those of the central 
spikelet though very narrow and rigid dilated and ciliate in the lower 
I - hed in waste places in N. S. Wales, Victoria, 
introduced and now well established in mana Pols, 7. Bueller, Oldfield and 
others. 
*2. H. nodosum, Linn. Spec. Pl. 126.—A taller and less coarse 
