IQ. GRAMlNEiE. 
PI, end. ph . 
S6 
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. ped. inflated, wedgeshape .. Festuca. 63. 
Lower spathellule ending in a long bristle; 
apex not nicked; stamen. 1 ; locusta panicled; 
prop. ped. inflated, wedgeshape . « Vulpia. 64. 
Lower spathellule ending in a bristle ; 
Upper obtusely truncated ; edge stiff-haired ; 
locusta 1 in each joint of the rachis . . Brachypodium. 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 spathellide ending in a short seta; 
2-cut, toothed ; lodicide unequally 2-toothed ; 
locusta 1 in each tooth of the rachis ; lower 
1-glumed Lolium. 48. 
Lower spathellule ending in a short seta, 
toothed ; lodicide 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; lodicide entire; glume awlshape; lo* 
CUStce 1 in each tooth of the rachis Secale. 46. 
Lower spathellule ending in a seta, not 
nicked ; lodicide not notched ; locustce 2 or 3 
irt each tooth of the rachis, ail 2-glumed .... Elymus. 47. 
b. Locustce \-Jlowered . 
Spathellules ending in a seta ; locustce 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 membranaceous, awnless ; 
glume cartilaginous, half immersed ; spike 
cylindrical Ophiurus. 43. 
Spathellules convolute; lower subulate, 
awniess ; glumes none ; spike 1 -rowed N ardus. 42. 
