46 THE FLORA OF THE NOETHEEN TEERITOEY. 



3. A. elymoides. — This species was ascribed by Bailey (Grasses of 

 Queensland) to Baron von. Mueller. No published description is to be found 

 apart from that given by Bailey. Only one specimen of it existed in the 

 National Herbarium from Darr River ; this was first named Danthonia lappacea 

 var., and subsequently labelled D. elymoides, ]?. v.M., n.sp., but no description 

 of it made under either Danthonia or Astrebla. As the description given by 

 Bailey is incomplete and the figure a photograph only, the following amended 

 description with plate showing the structure is given. It is one of the grasses 

 commonly known as MitcheU grass in N. Austraha. (Plate IV.) 



A grass about 2 ft. high with erect branching stems arising from a rhizomic 

 base. All parts glabrous, except spikelets. Leaves with long sheathing bases 

 and broad flat blades, which taper to long points. 



Inflorescence a spike from 5.5 to 13 inches long. First two spikelets in- 

 serted on the somewhat twisted raohis at some distance from one another. 

 Spikelets sessile in the alternate notches of the rachis of spike, 6-8 inches long, 

 with two or more hermaphrodite flowers, the raohis of the spikelet hairy round 

 flowering glumes and terminating, above the fertile flowers, in a small hyaline, 

 empty glume. Outer glumes two ,glabrous, acute, of very unequal size. Lowest 

 glume small, about 2 lines long, varying in shape, thin and hyaHne with one 

 prominent central nerve. Second glume thin, 6-7 hnes long, 9-11 nerved with a 

 •wide hyaline margin. Flowering glume flrm, deeply concave with scarious 

 edges, entire part about 2J lines long, with three lobes, middle one produced 

 into a short straight awn, two lateral ones smaller, rigid, narrow, tapering to 

 sharp points, 3-nerved, somewhat spreading. Palea flat, acute, with two 

 prominent cihate nerves. Grain oblong, 2 to 3 lines long, with an oval hUum. 



30 miles S.E. Newcastle Waters, (G. F. Hill (No. 502), 9/8/11. 



34. ELEUSINE, Gaeetn. 1778. 

 {Acrachne, Wright and Am., 1836; Dactylocternium, Willd., 1809). 



Spikes digitate, short. Spikelets very, closely packed, the glumes very 

 pointed, the second outer one almost awned. — 1. E. segyptiaca. 



Spikes 6 to 12, scattered or the upper ones digitate. Glumes pointed, the 

 flowering ones with a small tooth on each side of the point. — 2. E. verticillata. 



1. E. aegyptiaca, Pers. Desf. — Hermansburg, Finke River, G. F. Hill 

 (No. 110), 21/3/1911. 



gj Five-mile Bar, MacArthur River, G. F. HiU (No. 729), 27/1/1912. 

 I Recorded. Gulf of Carpentaria, R. Brown, GuUiver ; Sir Charles Hardy's 

 Island, Henne ; Port Essington, Armstrong; Victoria River, F. v. Mueller; 

 Dampier's Archipelago, Walcot. Button grass. 



2. H. verticillata, Roxh. — Dampier's Archipelago and Exmouth Gulf, 

 Walcot. 



35. LEPTOCHLOA, Beauv. 1812. 



(Leptostachys, D. F.W., Mey., 1818; Oxydenia, Nutt., 1818; Rabdochloa, 

 Beauv., 1812). 



Spikelets, 5 or 6- flowered. Flowering glume rather obtuse. — 2. L. 

 subdigitata. 



Spikelets 1- flowered. Flowering glumes acute. Spikes slender, scattered 

 along the long slender rachis. — 1. L. polystachya. 



I. L. polystachya, Benth. — Near MacArthur River, edge of swamps, 

 G. F. Hill (No. 588), 17/9/1911. With rust on leaves. 



Recorded. Islands of the Gulf of Carpentaria, R. Brown ; Victoria River, 

 F. v.f^Mueller ; Etheridge and Gilbert Rivers, Sullivan. 



