KEPOET OF THB STATE BOTANIST 123 



Sterile spike clavate or linear, sessile or stalked ; fertile 2-5, 

 usual]}^ the upper one or two sessile at the base of the sterile spike, 

 the others scattered, the lowest often remote, all on short or 

 long peduncles and erect, or sometimes the one or two lower 

 ones spreading; densely or loosely flowered; bracts leafy, 

 partly sheathing, mostly exceeding the culm ; perigynia ovate, 

 obovate or subovcil, nerv^ed, with a short, abruptly bent, or long 

 tapering recurved bifid beak (the latter short and barely curved 

 in 74; fruit easily detached. 70-74. 



ft Perigynia acutely angled. 



Sterile spike clavate, short or long-peduncled ; fertile spikes 

 3-5, mostly scattered 07i long filiform drooping or erect-sjyread- 

 ing peduncles. Leaves narrow, three-veined. 75-76. 



Sterile spike clavate, stalked ; fertile spikes 2-5, mostly distant 

 on erect,partly or icholly included stalks^ 3-S flowered; bracts as 

 long as the sheaths or obsolete. Leaves 3"-12" wide or more, 

 three- veined, (narrow and one-veined in 80). 77-80. 



ft Perigynia obtusely angled^ 



Sterile spike linear, ^" wide ; fertile spikes small, erect or 

 drooping ; bracts obsolete, or leafy and equaling their sheaths ; 

 perigynia rainxite^ light or olive-broion. Leaves setaceous, or 

 involute when old 81-82. 



Plant dioecious Fertile spike cylindrical, dark purple ; peri- 

 gynia ovate, densely pubescent. A mountain species. 83. 



Sterile spike clavate or linear, sessile or short-peduncled ; fertile 

 spikes 1-5, the upper one or two near the sterile, the others sub- 

 approximate or sometimes subdistant and the lowest remote, 

 (umbellate ia 8t), 3-10 densely or subloosely flowered, globose 

 or short oblong, mostly sessile ; perigynia subrotund, suboval, 

 obovate or ovate, densely or lightly pubescent^ with an abrupt 

 bifid beak; bracts mostly scale-like, sometimes short leaf -like, 

 (perigynia acutel3^ angled in 93.) 84-93. 



•ff Perigynia slightly intlated. 



Sterile spike clavate or linear, stalked, often fertile at the 

 apex; fertile spikes 2-4, straight or flexuose, cylindrical or siib- 

 clavate, densely or loosely flowered ; bracts leaf-like, the lowest 

 sheathing, mostly exceeding the culm, (the up]>er ones setaceous 

 in 98); perigynia three-angled, ovate or spindle-shaped, with a 

 long or short tapering beak. 94-98. 



ft Perigynia moderately inflated. 



