S6 10. GRAMINE^. Fiend. ph. 



Lower spathellule with a bristle below the 

 apex ; apex nicked ; proper peduncle inflated, 

 wedgeshape Schedonorus. 6Q, 



Lower spathellule ending in a very short 

 bristle ; apex not nicked ; stamens 3 ; locusta 

 panicled ; prop, psd, inflated, wedgeshape . . Festuca. 63, 



Lower spathellule ending in a long bristle; 

 apex not nicked; stamen I ; locusta panicled; 

 prop. ped. inflated, wedgeshape Vulpia. 64', 



Lower spaihellule ending in a bristle ; 

 upper obtusely truncated ; edge stifF-haired ; 

 locusta 1 in each joint of the rachis , . Bkachypodium. 59, 



Lower spathellule ending in a short seta ; 

 upper nicked, 2-cut; ovary bald; locusta 1 in 

 each tooth of the rachis Agropyron. 49, 



Lower spathellule ending in a short seta ; 

 2-cut, toothed ; lodiade unequally 2-toothed ; 

 locusta 1 in each tooth of the rachis; lower 

 1-glurned ,.,.... LoLiUM. 48. 



Lower spathellule ending in a short seta, 

 toothed ; lodicule not notched ; glumes broad, 

 boatshaped, nearly equal ; locustce 1 in each 

 tooth of the rachis ; ovary bearded Triticum. 50,. 



Lower spathellule ending in a long bristle, 

 entire; lodicule entire; glume a wish ape; lo- 

 custce 1 in each tooth of the rachis Secale. 46. 



Lower spaihellule ending in a seta, not 

 nicked ; lodicule not notched ; locustce 2 or 3 

 in each tooth of the rachis, all 2-glumed .... Elymus. 47. 



b. Locustce 1-Jlowered, 



Spathellules ending in a seta ; locmt(B 3 in 

 each tooth of the rachis; all fruitful Hordeum. 44. 



Spathellules ending in a seta; locustce 3 in 

 each tooth of the rachis; 2 lateral barren Zeocriton. 45. 



Spathellules niembi'anaceous, awnless ; 

 glwne cartilaginous, half immersed ; spike 

 cylindrical Ophiurus. 43. 



Spathellules convolute ; lower subulate, 

 awnless ; glumes none ; spike 1 -rowed Naiidus. 42, 



