A(iU<)STll)E-K. 105 



e, Panicle branched, little iiitcrrupte'l rays 2-15 



cm. long (g) 



g. Floral glume 10 mm. long. . . . 11> 



g. Also some i)luntsj of tJo 



g. Floral glume less than 10 mm. (exci'])ting 



some of 23) (h) 



h. First glume 3-5 mm., floral glume o-O 



mm. long 21 



h. First glume 4-6 mm., floral glume 5-G 



mm. long. . 24: 



h. First glume 7 mm., floral glume 5-0 



mm. long 23 



h. First glume 8-10 mm., floral glume T-8 



mm. long. 22 



h. First glume G-0 mm., floral glume T-14 



mm. long, and in some varieties flrst 



glume 9-13 mm. long, floral glume 18- 



20 mm. long; very variable. . . .25 



Awns three, not jointed with the floral (jJmne, the lateral 



ones very short or obsolete. 



a. Central awn stout, 2-3 cm. long, hooked-recurved at the 



base when dry 26 



a. Central awn 5-6 ihm. long, reflexed and twice coiled at the 



base when dry 2T 



a. Central awn not hooked nor coiled at the base when 



dry (b) 



b. Floral glume 6 mm. long, culm erect filiform. . . 28 



b. Floral glume longer, culm stouter (c) 



c. Emi)ty glumes equal, or the first one longer. . (e) 

 e. First empty glume 7-8 mm. long or often 



obsolete 32 



e. Empty glumes nearly equal, 6-8 mm. long. 29 

 e. Emptyglumesnearly equal, 9-11 mm. long. 30 

 e. First glume 10-12 mm., second 7 mm. long. 31 



e. First glume 8-13 mm, long 33 



c. Empty glumes unequal, second one longer. . (d) 



