Mr. Woods on the Genera of European Grasses. 53 



37. Cynodon. Spiculse 1-flowered, with an interior rudiment. Spikes fin- 

 gered. Glumes unequal, membranous. Palese membranous. 



38. Dactyloctenium. Spiculse 2 or more flowered. Spikes fingered. Inner 

 glume mucronate. Palese unequal, the outer ventricose, membranous, 

 the inner scariose. 



39. Leptochloa. Spiculse 2 or more flowered. Spikes in a raceme. Glumes 

 keeled. Outer palea keeled, 3-nerved. Awn straight. 



40. Beckmannia. Spikes disposed in a raceme. Spiculse unarmed, 1 — 2-flow- 



ered. Glumes equal, deeply navicular, enlarging towards the apex, very 

 obtuse. 



41. Spartina. Spikes disposed in a raceme. Spiculse 1-flowered. Glumes 

 very unequal, the inner acuminate. 



57. Oreochloa. Spiculse many-flowered, in a simple spike or head. Glumes 

 and outer palea concave, membranous, with a scariose margin. 



75. Nardus. Glume ! Outer palea keeled, and ending in a subulate point. 

 Style 1. Stigma 1. Spiculse quite sessile. Spike simple. 



Knappia minima. Triticum Nardus and unilaterale. Festuca maritima and divaricata. Scle- 

 rochloa loliacea. 



F. Spiculse sessile, in a head or spike tiled all round. 



56. Sesleria. Outer palea membrano-scariose, ending in three or five soft 



flexible teeth. Stigmas long. Styles united below. 

 74. Echinaria. Outer palea herbaceo-coriaceous, ending in several long rigid 



setse. 



G, Spiculse scattered, 1 or more flowered. The florets enveloped in 

 long silky hairs. 



33. Arundo. Glumes membranous, equal, or the outer largest. Palese mem- 

 branous. Awn, if any, fine and slender. Panicle spreading. 



34. Ammophila. Spiculse 1-flowered, with an interior rudiment. Glumes 

 nearly equal, membrano-scariose. Outer palea membranous, with a short 

 strong point below the apex. Panicle spike-like. 



35. Phragmites. Spiculse many-flowered, the lowermost imperfect, and not 



enveloped in hairs ! Glumes membranous, the outer much the smallest. 

 Palese scariose, unarmed. Seed hairless. 



