Pentapogon. | OXLIV. GRAMINER. 573 
figured an et ea gae starved one); Stipa pentapogon, F. Muell. 
Fragm. v 
Victoria. Wendu Vale, a ww yer. Bacchus ; Ararat, Green. 
Tasmania. Port Dalrymple, ; Hobarton, Oldfield ; Cheshunt, Archer ; 
Launceston, Gunn ; Swanport 
S. Australia. St. Vincort’s Gulf F. Mueller ; Barossa Range, Behr. 
Var. parviflorus. Out ee aian 2 lines long, inner glume and awn in pro- 
portion.—Recherche e Bar, C. Stua 
52. DIPLOPOGON, R. Br. 
(Dipogonia, Beaw.) 
Spikelets 1-flowered, nearly sessile in a dense panicle contracted into 
an ovoid-globular head, the rhachis of the spikelet articulate et the 
2 outer glumes and not continued beyond the flower. umes 3, the 
2 outer ones persistent, keeled, tapering into fine short straight awns. 
Flow ering glume scarcely ue above the outer ones, with a rigid 
terminal awn up twisted and eurved down, and a short straight 
awn on each side of it. Palea as long as the glume, narrow and 
hyaline with 9 i ditnddit nerves produced into short awns. ‘Styles 
distinct. Grain not seen. 
The genus is limited to the single species endemic in Australia. It is in many 
Tespects nearly allied to Amphipogon, among Pap pophoree. but is essentially 
twisted awn places it rather in Agrostides batt to Pentapogon 
l. D. setaceus, R. Br. Prod. 176.—A slender glabrous erect grass 
od. 
of 1 to 2 p with the habit and inflorescence of Amphipogon turbinatus. 
aves narrow. aeo panicle or head ovoid-globular, 3 to 4 in. 
W. TES King, @ orge’s Sound and neighbouring districts, R. Brown, 
Drummond, n. 262, Preiss, n. 1853, Oidfeld 
53. DICHELACHNE, Endl. 
Spikelets 1-flowered, numerous in a narrow usually dense ens 
the rhachis of the spikelet artieulate immediately above the 2 ou 
