Tetrarrhena.] CXLIV. GRAMINEX. 555 
4 lines long. Outer persistent glumes very small as in 7. disticho- 
phylla, but not so obtuse, the lowest about 3 line, the 2nd £ line long, 
3rd and 4th glumes narrow, rigid, acuminate, with about 5 very promi- 
nent seabrous or almost murieate nerves, the 4th rather longer than 
the 3rd and sometimes produced into a short fine point; 5th glume 
rather shorter and less acute, rigid but faintly nerved and smooth or 
nearly so, 6th shorter and narrower, but keeled acute and rather 
rigid.—-Hook. f. Fl. Tasm. ii. 104; Hhrharta acuminata, Spreng. Syst. 
n. 114. 
Victoria. Queen's Cliff, F. Mueller 
P 
pntemanie. ort Dalrymple, R. Brown ; Longford, Archer; Mersey River, 
. Stuart. 
44, ALOPECURUS, Linn. 
Spikelets 1-flowered, flat, densely crowded into a cylindrical spike 
or spikelike panicle. Glumes 3, 2 outer complicate, keeled, acute but 
not awned, 3rd under the flower shorter, keeled, with a short slender 
dorsal awn. No 2-nerved palea or lodicules. Stamens 3. Styles 
E Grain enclosed in the scarcely hardened glumes, but free 
m them. 
A small genus, widely spread over the temperate and colder regions of both the 
northern and the southern hemispheres, only penetrating into the tropics as occa- 
i e 
sional weeds. The two Australian species are common northern ones, and one of 
them is only as an introduced weed. 
Outer glumes nearly 3 lines long, united at the middle, 
BUD tr nearly 80. 27 UP LOL Loy ee eee 
Outer glumes not 14 lines long, free or scarcely united at 
the base, hairy on the keel (ur qoe A UA 
l. A. agrestis. 
2, A. geniculatus. 
* 1. A. agrestis, Linn. ; Kunth, Enum. i. 23.—An annual, 1 to 
2 ft. high. Leaves rather short, with long not very loose sheaths. 
Spikes 2 to Zin. long, the spikelets not so closely packed nor so much 
ttened as in other species, about 3 lines long, usually quite glabrous, 
the 2 outer glumes united to about the middle, the hairlike awn o the 
flowering glume projecting 2 or 3 lines beyond them.—Reichb. Ic. Fl. 
Germ. t. 49. 
Tasmania. Swanport, Story, evidently introduced. 
2. A. geniculatus, L h, Enum. i. 24, ii. t. 7.—A 
perennial or sometimes annual only, glabrous except the spike. Stems 
Sometimes only in., ofte ft. high or more ves narrow, 
€ upper sheaths broad and loose. Spike 1 to 2 in. long, closely 
imbricate but slender. Outer glumes hairy on t l, scarcely 
e usually but little more than 1line long, free or scarcely united 
Abt l 
