456 GRAMINE&. [HonDEUM. 



* Flowers of lateral spikelets 2-seicual, of middle male. 



1. H. sylvat'icum, Hiids. ; perennial, spike sub terete, empty glumes 

 setaceous scabrid. Elymus europceus, L. 



Copses and woods in chalky soil, from Chester and Northumberland to Wilts 

 and Kent; Dublin (native?) only in Ireland; fl. June-July. Perennial, 

 bright green. Stems 1-3 ft., strict, erect, smooth. Leaves |-{j in. broad, 

 flat, thin, scaberulous ; sheaths hispid, hairs reflexed ; ligule very short. 

 Spikes 24 in., strict, erect, terete, green. Spikelets f in., erect, subses.sile ; 

 empty glumes subulate, awned, scabrid, 3-nerved ; fl. glumes linear-oblong, 

 dorsally compressed, scabrid, shorter than the straight flexuous awn, nerved 

 towards the tip ; palea with smooth keels. Fruit very narrow. DISTRIB. 

 Europe from Gothland to Spain, Italy, and Russia. 



** Lateral spikelets flowerle&s or male, middle Z-sexiMl. 



2. H. praten'se, Huds. ; perennial, spike compressed, outer empty 

 glume setaceous scabrid. 



Wet meadows, &c. ; E. of Scotland from Forfar and Perth to Devon and Kent ; 

 S. and E. of Ireland, local ; fl. June-July. Rootstock creeping. Stems very 

 slender, 1-2 ft., terete, scabrid above. Leaves J-J in., narrow, flat, at 

 length involute, scabrid above, hairy beneath, as are the narrow sheaths ; 

 ligule very short. Spite 1-3 in., |-^ in. broad, inclined, linear, yellow-green. 

 Spikelets with the awns in. , rather spreading, scabrid all over, not ciliatc ; 

 fl. glumes terete, smooth, about equalling the awn, obscurely nerved ; palea 

 as long, acute, keels not ciliate. DISTRIB. Europe from Gothland to Spain 

 and Russia, Siberia, Dahuria, N.W. India, N. America. 



3. H. muri'num, L. ; annual, spike compressed, outer empty glume of 

 the mid. spikelet lanceolate ciliate, of the lateral setaceous scabrid. //"<///- 

 bent, Barley-grass. 



Waste places, E. of Scotland from Kincardine to Kent and Cornwall ; S. and 

 E. of Ireland, very rare; fl. June-July. Root fibrous. Stems ascending, 

 6-18 in., smooth, glabrous. Leaves small, narrow, scabrid ; sheaths inflated, 

 glabrous ; ligule very short. Spikes 1^-2 in., stout, inclined, green. S;j//<;- 

 lets 1 in., densely imbricate ; empty glumes filiform ; fl. glumes lanceolate, 

 flattened, much shorter than the straight awn ; palea with distantly ciliate 

 keels. DISTRIB. Europe from Gothland southwards, N. Africa. 



4. H. marit'imum, With. ; annual, spike subterete, empty glumes 

 scabrid, upper of the mid. spikelet ^-lanceolate, the rest setaceous. 

 Squirrel-tail Grass. 



Waste maritime localities, from Chester and Durham southwards ; absent 

 from Ireland; fl. June. Stems 6-12 in., bent below, then erect, terete, 

 smooth, leafy. Leaves short, straight, narrow, flat, glaucous, scabrid ; 

 lower sheaths pubescent, upper inflated; ligule very short. Sp^ke 1-2 in., 

 stout, erect, subterete, at length yellow-brown. Spikelets ^ in. without the 

 awns, rather spreading, rigid ; larger empty glume of mid. spikelet green 

 with scarious margins, shorter than the rigid awn; fl. glume lanceolate, 

 flattened, about equalling the rigid awn. DISTRIB. Europe from Denmark 

 southwards, N. Africa. 



