208 GRAMINEAE. [ Festuca. 
Spikelets about 2in. long with the awns, laxly 3-5-flowered. Two outer 
glumes unequal, from 4 to 2 the length of the whole spikelet, narrowed 
into long acuminate scabrid points; lower linear, l-nerved; upper longer, 
narrow-lanceolate, 3-nerved. Flowering glumes oblong-lanceolate, firm, 
rounded on the back, concave, faintly 5-nerved, gradually narrowed into 
a terete scabrid awn as long or longer than the glume, surface densely 
minutely scabrid, callus glabrous. Palea as long as the glume, deeply 
2-fid, serrulate along the keels. Grain linear-cblong, deeply grooved ; 
hilum # the length of the grain.—Agropyrum Coxi Peirve in Trans. N.Z. 
Inst. xxxiv (1902) 395; Cockayne Veg. N.Z. (1921) t. 85. 
CHATHAM ISLANDS: Common on rocks and sands near the shore, F. A. D, Cor and 
Cockayne / 
A distinct species, well marked by the peculiar habit, narrow spike-like panicles, 
short stout pedicels, narrow awned empty glumes, and by the long-awned flowering 
glumes. 
31. BROMUS Linn. 173 3° 
Annual or perennial grasses, of very various habit. Leaves flat, often 
flaceid ; ligules membranous. Spikelets laterally compressed, 4- to many- 
flowered, arranged in a lax or contracted panicle, rarely reduced to a 
raceme ; rhachilla disarticulating above the two outer glumes and between 
the flowering glumes. ‘Two outer glumes unequal, empty, persistent, 
1-7-nerved. Flowering glumes lanceolate to cblong, rounded on the back 
or keeled, 5-9-nerved, usually 2-toothed at the apex, awned from between 
the teeth or rarely from below them. Palea 2-toothed, ciliolate or scabrid 
on the keels. Lodicules 2, oblong or lanceolate, entire or lobed. Stamens 
usually 3. Ovary oblong or obovoid, furnished with a 2-3-lobed hairy 
cushion-like appendage at the summit; styles short, placed laterally on 
the appendage; stigmas plumose. Grain linear or oblong, furrowed, 
adherent to the palea; hilum long, narrow-linear. 
Species 40 or 50, most abundant in the North Temperate Zone and in South America, 
rare on the high mountains of a tropics. . The single indigenous species is a common 
Australian plant. (Om . omni ne OD )"” 
1. B. arenarius Labil!l. Pl. Nov. Holl. i1 (1806) 23, t. 28.— Annual, 
everywhere villous with soft spreading hairs. Culms slender, erect or 
ascending, sometimes geniculate near the base, leafy. Leaves 2-5 in. 
long, linear, flat, flaccid, withering early; sheaths close, thin, strongly 
striate ; ligules hyaline, fimbriate at the tip. Panicle 2-6 in. long, flaccid, 
nodding; rhachis slender, pilose; branches in fascicles of 3-7, slender, 
capillary, spreading and flexuous, the longest 1d4in. long, bearing 1-3 
spikelets ou very slender capillary pedicels. Spikelets about #in. long 
without the awns, 14-l4in. long with them, 4-8-flowered. Two outer 
glumes unequal, not $ the length of the spikelet, villous with long hairs, 
acuminate, margins hyaline; the lower narrow-lanceolate, 3-nerved, but 
the lateral nerves often short and faint; upper oblong-lanceolate, 5-7- 
nerved. Flowering glumes oblong-lanceolate, thin and membranous, 
hyaline on the margins, strongly 7-nerved, villous, deeply 2-fid at the tip ; 
awn as long or longer than the glume, straight, scabrid, from the back 
just below the notch. Palea narrow, shorter than the ylume, ciliate on the 
keels.--Hook. f. Fl. Nov. Zel. i (1853) 310; Handb. N.Z. Fl. (1864) 341 ; 
Benth. Fl. Austral. vii (1878) 661; Buch. N.Z. Grasses (1880) t. 564; 
Cheesem. Man. N.Z. Fl. (1906) 920. B. australis R. Br. Prodr. (1810) 
178; A, Cunn. Precur, (1836) n. 358; Raoul Choix (1846) 39. 
