188 



APPENDIX 



CONTAINING A LIST OP LOCAL, RARE, OR, INTRODUCED FOREIGN 

 GRASSES NOT OTHERWISE DESCRIBED IN THIS VOLUME 



Aira alpina, L. An alpine dwarf variety of A. cmspitosa common 

 on the higher mountains of Scotland. The panicles usually pass more 

 or less into the viviparous state. 



Alopecurus alpinus, Sm. Occurs in the Highlands of Scotland. 

 Perennial. The spike-like panicle is seldom more than an inch long, ovoid 

 in form, and silky. The awn is shorter than that of Alopecurus pratensis. 



A. bulbosus, Sm. A variety of A. geniculatus in which the lowermost 

 nodes of the culms are enlarged and bulb-like. It is mostly found on 

 wet salt marshes around the coasts. 



A.fulvus, Sm. Another slight variety of A. geniculatus with a shorter 

 awn which does not project beyond the tips of the empty glumes. Rare. 



Bromus madritensis, L. A rare annual; 6 — 12 inches high; waste 

 places. Panicle erect. Upper empty glume three-ribbed. Awn equal 

 in length to the palese. 



B. maximus, Desf. Occurs in Jersey. An annual, closely allied 

 to B. sterilis but with a more erect and compact panicle. Rachis 

 pubescent. Spikelets about 8-flowered, and from 2J to 3| inches in 

 length including the awns. Awns longer than the palese. 



Echinochloa Crus-gaUi, Beauv. Cockspur Panic-grass. 



A course annual, growing from one to two feet high, with broad 

 leaves. Ligule wanting. Panicle about five inches long, irregular, and 

 one-sided. Spikelets clustered, two-flowered. Empty glumes very un- 

 equal. Lower flower rudimentary or barren. 



Occasionally a weed of cultivation in England. 



Festuca uniglumis, Soland. A tufted annual with inrolled leaves, 

 growing from six to twelve inches high. Inflorescence racemed, about 

 two inches long. Spikelets on short simple branches, 5 — 6-flowered. 

 Lower empty glume obsolete, the upper glume long, narrow, and pointed. 

 The outer palea terminates in an awn which is longer than the palea 

 itself. Scattered around the coasts of England and Ireland. 



Gastridium lendigerum, Beauv. Nit-grass. An annual, 6 — 12 

 inches high. Panicle close, spike-like, pale green. Spikelets crowded, 

 one-flowered. Awn sub-terminal (sometimes absent) and longer than 



