128 



Fig. 122. SPOKOBOIiUS INTERRUPTUS Vasey Bui. Torr. Bot. Club, 15 : 8. 

 1888.— A rather stout, erect perennial, with simple culms about' 4-5 dm. (16'-20') 

 high, flat leaves, and narrow but loosely flowered panicles 10-18 cm. (4'-7') long. 

 Spikelets ib) 6-7 mm. (3"-3i') long; empty glumes broadly lanceolate, acute, 

 the first about 3 mm. {li"),the second about 5 mm. (21") long; flowering glume 

 (c) broadly lanceolate, acute, a little shorter than its palea, which is slightly 

 notched at the tip and has remarkably broad margins.— In forests, mountains 

 of Arizona. August, September. 



